Certified Scheduling Technician (CST) — Questions and Answers

Question 1: In schedule compression, crashing differs from fast tracking in that crashing:

Removes non-essential activities from the schedule
Adds resources to critical path activities to shorten duration (Correct answer)
Overlaps activities that were originally sequential
Reduces the scope of deliverables to save time

Correct answer: Adds resources to critical path activities to shorten duration

Crashing adds resources (people, equipment, overtime) to critical path activities to reduce their duration, typically increasing cost.

Question 2: Why is planning essential in project management?

To set clear goals and outline strategies for execution (Correct answer)
To reduce project documentation.
To delay project progress.
To create more tasks.

Correct answer: To set clear goals and outline strategies for execution

Planning is essential in project management because it involves setting clear goals and outlining detailed strategies for how those goals will be achieved. This phase defines the project scope, identifies tasks, estimates resources, establishes timelines, and develops approaches to manage risks. Effective planning provides a comprehensive roadmap, minimizes uncertainties, and ensures the project team has a clear direction for successful execution.

Question 3: When documenting activities related to milestone & constraint management, which practice is considered essential for CST certification holders?

Keeping documentation in personal notes that are not accessible to other team members
Maintaining comprehensive records that include procedures, observations, results, and any anomalies (Correct answer)
Recording only outcomes while omitting the methods and processes used
Completing documentation only when requested by auditors or supervisors

Correct answer: Maintaining comprehensive records that include procedures, observations, results, and any anomalies

Comprehensive documentation that includes procedures, observations, results, and any anomalies is essential in milestone & constraint management. This supports quality assurance, enables peer review, and satisfies regulatory and audit requirements.

Question 4: When a cost-loaded schedule shows a Schedule Variance (SV) of -$50,000, what does this indicate?

The project is $50,000 behind schedule in cost terms (Correct answer)
The project will finish $50,000 over budget
The project has spent $50,000 less than planned
The project has earned $50,000 more work than planned

Correct answer: The project is $50,000 behind schedule in cost terms

A negative SV (EV minus PV) means the project has accomplished less work value than was planned at that point in time.

Question 5: In Earned Value Management, if EV = $50,000 and AC = $60,000, the Cost Variance (CV) indicates:

The project has $10,000 remaining in the budget
The project is $10,000 over budget (Correct answer)
The project is ahead of schedule by $10,000
The project is $10,000 under budget

Correct answer: The project is $10,000 over budget

CV = EV - AC = $50,000 - $60,000 = -$10,000; a negative CV means the project is over budget.

Question 6: In the context of cost-loaded schedule integration, what role does continuous professional development play for CST practitioners?

It is required only during the first year of certification
It is optional and only needed for career advancement
It ensures practitioners remain current with evolving standards, technologies, and best practices (Correct answer)
It serves primarily as a networking opportunity with no practical benefit

Correct answer: It ensures practitioners remain current with evolving standards, technologies, and best practices

Continuous professional development is essential in cost-loaded schedule integration because it ensures CST practitioners remain current with evolving standards, technologies, and best practices, maintaining competency throughout their careers.

Question 7: Which of the following best describes Free Float?

The amount of time an activity can be delayed without delaying the Early Start of any successor (Correct answer)
The amount of time an activity can be delayed without delaying the project end date
The total slack available across all project activities
The difference between an activity's Late Finish and Early Finish

Correct answer: The amount of time an activity can be delayed without delaying the Early Start of any successor

Free Float is the amount of time an activity can be delayed without affecting the Early Start of any immediate successor.

Question 8: In P6, which relationship type allows a successor activity to start before its predecessor is complete when a negative lag (lead) is applied to a Finish-to-Start link?

Start-to-Finish with positive lag
Finish-to-Start with negative lag (Correct answer)
Finish-to-Finish with zero lag
Start-to-Start with positive lag

Correct answer: Finish-to-Start with negative lag

A negative lag on a Finish-to-Start relationship (FS-3) allows the successor to begin 3 days before the predecessor is scheduled to finish, effectively creating a lead.

Question 9: What is the consequence of over-leveling (over-smoothing) resources on a project schedule?

The critical path shortens unexpectedly
Resources become over-allocated
Activities are unnecessarily delayed, adding unneeded schedule padding (Correct answer)
Project cost increases without schedule change

Correct answer: Activities are unnecessarily delayed, adding unneeded schedule padding

Excessive leveling delays activities beyond what is needed to resolve conflicts, artificially inflating project duration.

Question 10: What is resource leveling?

Increasing project scope.
Adding unnecessary tasks.
Eliminating critical project milestones.
Adjusting the project timeline to balance resource use (Correct answer)

Correct answer: Adjusting the project timeline to balance resource use

Resource leveling is a project management technique used to optimize resource allocation by adjusting the project schedule. Its primary goal is to smooth out peaks and valleys in resource demand, typically by delaying non-critical tasks to periods when resources are less busy. This helps prevent resource overallocation and underutilization, leading to a more balanced and sustainable workload without necessarily extending the project duration.

Question 11: When applying fast-tracking, which type of dependency is most commonly modified?

Mandatory finish-to-start dependencies
Mandatory start-to-start dependencies
External finish-to-start dependencies
Discretionary finish-to-start dependencies (Correct answer)

Correct answer: Discretionary finish-to-start dependencies

Discretionary (soft logic) finish-to-start dependencies are most commonly modified in fast-tracking because they are not technically required.

Question 12: What is a project charter?

A formal document that initiates a project (Correct answer)
A client satisfaction survey.
A financial report for the project.
A list of project expenses.

Correct answer: A formal document that initiates a project

A project charter is a formal document that officially initiates a project and authorizes the project manager to apply organizational resources to project activities. It outlines the project's purpose, high-level objectives, scope, key stakeholders, and overall vision. This foundational document provides clear direction and serves as a critical reference throughout the project lifecycle.

Question 13: When documenting activities related to resource loading & leveling, which practice is considered essential for CST certification holders?

Completing documentation only when requested by auditors or supervisors
Keeping documentation in personal notes that are not accessible to other team members
Recording only outcomes while omitting the methods and processes used
Maintaining comprehensive records that include procedures, observations, results, and any anomalies (Correct answer)

Correct answer: Maintaining comprehensive records that include procedures, observations, results, and any anomalies

Comprehensive documentation that includes procedures, observations, results, and any anomalies is essential in resource loading & leveling. This supports quality assurance, enables peer review, and satisfies regulatory and audit requirements.

Question 14: What is an 'early completion' schedule and why might it create contractual risk for a contractor?

A schedule used only for fast-track projects with overlapping design and construction
A schedule issued when the owner demands earlier completion than originally planned
A baseline schedule showing completion before the contract completion date, which can expose the contractor to owner interference claims if the owner delays activities on that compressed path (Correct answer)
A schedule that eliminates all float from non-critical activities

Correct answer: A baseline schedule showing completion before the contract completion date, which can expose the contractor to owner interference claims if the owner delays activities on that compressed path

An early completion schedule showing a finish date before the contract deadline can create risk because it implies the owner must not cause any delay on that compressed path, potentially strengthening delay claims against the owner.

Question 15: A contractor's schedule shows Activity Y with Early Finish Day 50 and Late Finish Day 50, while Activity Z has Early Finish Day 60 and Late Finish Day 68. Which activity is on the critical path?

Both activities are critical
Neither activity is critical without knowing their durations
Activity Z, because it finishes later
Activity Y, because Total Float = 0 (Correct answer)

Correct answer: Activity Y, because Total Float = 0

Activity Y has zero total float (LF − EF = 50 − 50 = 0), making it critical; Activity Z has 8 days of float and is not on the critical path.

Question 16: In Earned Value Management, what does BAC stand for?

Baseline Activity Cost
Budgeted Actual Cost
Budget at Completion (Correct answer)
Base Allocation Curve

Correct answer: Budget at Completion

BAC (Budget at Completion) represents the total planned budget for the entire project.

Question 17: A scheduler is asked to calculate the probability of completing a project in 95 days when the PERT expected duration is 90 days and the critical path standard deviation is 5 days. What Z-score is used?

Z = 2.0
Z = 1.0 (Correct answer)
Z = 0.5
Z = 1.5

Correct answer: Z = 1.0

Z = (target − mean) / σ = (95 − 90) / 5 = 1.0, corresponding to approximately 84.1% probability.

Question 18: A CST exam question shows a milestone with Early Finish = Day 100 and Late Finish = Day 100 and a hard MFO constraint on Day 105. What is the milestone's Total Float?

5 days (Correct answer)
0 days
Cannot be determined
-5 days

Correct answer: 5 days

With logic driving EF to Day 100 and the MFO constraint at Day 105, the milestone has 5 days of positive float before it must occur.

Question 19: Which of the following BEST describes 'schedule compression' as a technique in project management?

Shortening the project schedule duration without reducing scope (Correct answer)
Removing low-priority activities from the network
Reducing project scope to meet an earlier deadline
Transferring schedule risk to the project sponsor

Correct answer: Shortening the project schedule duration without reducing scope

Schedule compression reduces the project timeline without changing scope, using techniques like crashing or fast tracking.

Question 20: Which metric on a resource loading table indicates the cumulative hours a resource is assigned across all activities?

Resource calendar
Total resource demand (Correct answer)
Resource utilization rate
Peak loading factor

Correct answer: Total resource demand

Total resource demand sums all assigned hours across every activity for a given resource.

Question 21: In a CPM network, which milestone serves as the official beginning reference point for all downstream logic?

Status date milestone
Finish milestone
Baseline milestone
Project start milestone (Correct answer)

Correct answer: Project start milestone

The project start milestone anchors the network and serves as the source node from which all forward-pass calculations begin.

Question 22: A Start-to-Start (SS) relationship with a lag of 2 days between Activity A and Activity B means:

B finishes 2 days after A starts
B cannot start until at least 2 days after A starts (Correct answer)
A and B must start on the same day within 2-day tolerance
B must start at least 2 days before A starts

Correct answer: B cannot start until at least 2 days after A starts

An SS+2 lag requires B's start to be delayed at least 2 days after A begins, allowing partial completion of A before B commences.

Question 23: What DCAA/DCMA requirement specifies that a contractor's EVM system must be validated before being relied upon for government contract reporting?

The Integrated Baseline Review (IBR)
The Schedule Risk Analysis (SRA) gate review
The Cost Performance Report (CPR) Format 1 submittal
The Earned Value Management System (EVMS) Compliance Certification (Correct answer)

Correct answer: The Earned Value Management System (EVMS) Compliance Certification

EVMS compliance certification (per ANSI/EIA-748) verifies that the contractor's system meets the 32 guidelines before it can be used for formal government cost reporting.

Question 24: Which document outlines who is responsible for each project task?

Project Scope Statement.
Responsibility Assignment Matrix (RAM) (Correct answer)
Project Charter.
Risk Register.

Correct answer: Responsibility Assignment Matrix (RAM)

A Responsibility Assignment Matrix (RAM), often in the form of a RACI chart, is a document that clearly outlines who is responsible, accountable, consulted, and informed for each project task or deliverable. It ensures that every task has a designated owner and clarifies roles within the project team. This clarity prevents confusion, improves accountability, and streamlines communication, which is vital for efficient task execution.

Question 25: In delay analysis, what distinguishes a 'compensable delay' from a 'non-excusable delay'?

Compensable delays are acts of God; non-excusable delays involve subcontractors
Compensable delays are caused by the owner and entitle the contractor to both time and money; non-excusable delays are the contractor's fault (Correct answer)
Both grant time extensions but only compensable delays require documentation
Non-excusable delays are always on the critical path; compensable delays affect float only

Correct answer: Compensable delays are caused by the owner and entitle the contractor to both time and money; non-excusable delays are the contractor's fault

Compensable delays are caused by the owner (or their agents), entitling the contractor to a time extension plus additional costs; non-excusable delays are the contractor's responsibility with no relief.

Question 26: Which of the following is a fundamental principle of milestone & constraint management as it applies to Certified Scheduling Technician?

Relying solely on personal experience without reference to guidelines
Avoiding documentation to streamline workflow efficiency
Prioritizing speed of completion over accuracy and compliance
Systematic evaluation and adherence to established industry standards (Correct answer)

Correct answer: Systematic evaluation and adherence to established industry standards

A fundamental principle of milestone & constraint management in Certified Scheduling Technician is the systematic evaluation and adherence to established industry standards, which ensures consistency, quality, and regulatory compliance across all professional activities.

Question 27: In a Design-Bid-Build project, what contractual document typically establishes the required schedule format and update requirements?

The contractor's cost-loaded payment application
The project's request for information (RFI) log
The contract's Special Conditions or Division 01 Specifications (Correct answer)
The subcontract agreement with each trade

Correct answer: The contract's Special Conditions or Division 01 Specifications

Division 01 General Requirements (or Special Conditions) of the project specifications define the scheduling requirements, including software, update frequency, and format for the contractor's schedule.

Question 28: The difference between the early start and late start of an activity without delaying the project is called:

Project float
Total float (Correct answer)
Free float
Negative float

Correct answer: Total float

Total float is the amount of time an activity can be delayed without delaying the project finish date.

Question 29: When should a schedule contingency reserve be released during a project?

When a specific risk event occurs and its associated impact is realized (Correct answer)
When the project sponsor approves additional scope
At regular intervals regardless of risk status
Only at project closeout

Correct answer: When a specific risk event occurs and its associated impact is realized

Schedule contingency is released when the risk event it was reserved for actually occurs, ensuring the buffer is used intentionally rather than consumed arbitrarily.

Question 30: A To-Complete Performance Index (TCPI) value of 1.25 indicates what about remaining project work?

The project will finish 25% under budget
The remaining work must be performed at 25% greater cost efficiency than achieved to date to finish within BAC (Correct answer)
Resource productivity must be reduced by 25% to avoid burning budget too quickly
The remaining work must be completed at 25% less cost than budgeted to meet the EAC

Correct answer: The remaining work must be performed at 25% greater cost efficiency than achieved to date to finish within BAC

TCPI = (BAC − EV) ÷ (BAC − AC); a value of 1.25 means the team must earn $1.25 of value for every $1.00 spent going forward — a demanding target if CPI has been below 1.0.

Question 31: A project network has three paths: Path 1 = 22 days, Path 2 = 22 days, Path 3 = 18 days. How many critical paths does this project have?

Three critical paths (all paths)
One critical path (Path 1 or Path 2, not both)
Two critical paths (Path 1 and Path 2) (Correct answer)
None — critical paths require zero float, not tied durations

Correct answer: Two critical paths (Path 1 and Path 2)

Any path with the longest duration (22 days) is a critical path, so both Path 1 and Path 2 are critical paths in this project.

Question 32: Resource leveling in project scheduling typically results in:

A shorter project duration
A longer project duration or changed dates (Correct answer)
Lower project costs
Fewer dependencies between activities

Correct answer: A longer project duration or changed dates

Resource leveling resolves over-allocations by delaying activities, which often extends the project schedule.

Question 33: What does the term 'float' or 'slack' refer to in scheduling?

Time flexibility available for a task without delaying the project (Correct answer)
Extra cost allocated for a task.
Team member performance buffer.
Resources assigned to a task.

Correct answer: Time flexibility available for a task without delaying the project

In scheduling, 'float' or 'slack' refers to the amount of time a task can be delayed without impacting the overall project completion date or the start of subsequent tasks. It represents the flexibility available within the schedule for non-critical tasks. Understanding float helps project managers prioritize tasks, allocate resources efficiently, and manage unexpected delays without jeopardizing the project's deadline.

Question 34: In the context of schedule baselines, what is a 'baseline deviation'?

An update to the resource allocation plan
The difference between current schedule dates and the approved baseline dates (Correct answer)
A risk response plan for schedule overruns
A formal change approved through change control

Correct answer: The difference between current schedule dates and the approved baseline dates

A baseline deviation is the measured difference between the approved baseline dates and the current forecast or actual dates.

Question 35: A project has multiple end activities (A, B, C) with Early Finish dates of 30, 35, and 28 days respectively. What is the project duration?

30 days
28 days
93 days (sum of all)
35 days (Correct answer)

Correct answer: 35 days

The project duration is the longest Early Finish among all terminal activities, which is 35 days.

Question 36: A project has a Planned Value (PV) of $50,000 and an Earned Value (EV) of $40,000. What is the Schedule Variance (SV)?

-$10,000 (Correct answer)
$90,000
-$90,000
$10,000

Correct answer: -$10,000

SV = EV - PV = $40,000 - $50,000 = -$10,000, indicating the project is behind schedule.

Question 37: Which software is commonly used for project scheduling?

Google Docs
Microsoft Project (Correct answer)
Adobe Photoshop
Autodesk AutoCAD

Correct answer: Microsoft Project

Microsoft Project is one of the most widely recognized and utilized software applications specifically designed for project management and scheduling. It provides comprehensive tools for creating schedules, assigning resources, tracking progress, managing budgets, and analyzing workloads. Its robust features make it a standard choice for project managers across various industries to plan and control projects effectively.

Question 38: A scheduler is performing 'what-if' analysis by changing activity durations. After increasing Activity M's duration from 5 to 9 days, the project end date does not change. What can be concluded?

Activity M had exactly 4 days of Free Float
Activity M is on the critical path
Activity M's predecessors also gained float
Activity M had at least 4 days of Total Float (Correct answer)

Correct answer: Activity M had at least 4 days of Total Float

If a 4-day duration increase does not extend the project end date, Activity M must have had at least 4 days of Total Float to absorb the change.

Question 39: A project manager updates the schedule and discovers that fast-tracking two phases has introduced a new critical path. The original critical path now has 5 days of float. What should the PM do first?

Update the schedule baseline to reflect the new critical path
Revert to the original schedule since float was created
Monitor the new critical path closely and manage risks on it (Correct answer)
Submit a schedule variance report to the sponsor immediately

Correct answer: Monitor the new critical path closely and manage risks on it

When fast-tracking creates a new critical path, the immediate priority is to actively monitor and manage risks on that new critical path to protect the finish date.

Question 40: In Earned Value Management, what does the acronym BCWP stand for?

Budget Cost of Work Planned
Base Cost Weighted Plan
Budgeted Cost of Work Performed (Correct answer)
Billed Cost of Work in Progress

Correct answer: Budgeted Cost of Work Performed

BCWP (now called Earned Value) represents the budgeted value of work actually completed, the central metric of EVM performance measurement.

Question 41: What is the primary purpose of establishing a schedule baseline before project execution begins?

To define the project charter
To provide a fixed reference point for measuring schedule performance (Correct answer)
To assign resource leveling constraints
To finalize procurement contracts

Correct answer: To provide a fixed reference point for measuring schedule performance

The schedule baseline serves as the approved reference against which actual progress is compared to calculate schedule variances.

Question 42: When analyzing schedule health using EVM, a negative Schedule Variance (SV) combined with an SPI less than 1.0 most likely indicates:

The project is ahead of schedule with cost savings
The project is behind schedule and performing less work than planned (Correct answer)
The project scope has been reduced
The project cost is under control but resources are overallocated

Correct answer: The project is behind schedule and performing less work than planned

Both negative SV and SPI < 1.0 confirm the project is completing less work than planned, indicating a schedule delay.

Question 43: A schedule update shows the project will finish 20 days late. The contractor applies acceleration measures and brings the delay to 8 days. The remaining 8-day delay is still the owner's responsibility. What type of recovery is this?

Voluntary mitigation (Correct answer)
Concurrent delay resolution
Directed acceleration
Constructive acceleration

Correct answer: Voluntary mitigation

Voluntary mitigation occurs when a contractor takes steps to reduce delay impacts without being directed by the owner, typically to maintain goodwill or avoid liquidated damages.

Question 44: What is the 'near-critical path' in the context of schedule risk?

The second-longest path through the network
Activities with small amounts of total float that could become critical if delays occur (Correct answer)
Activities that are 90% complete
Activities with the highest resource costs

Correct answer: Activities with small amounts of total float that could become critical if delays occur

Near-critical paths contain activities with minimal float that pose significant risk of becoming critical if delays occur, making them important to monitor during risk analysis.

Question 45: In CPM network analysis, an 'open end' in the schedule logic (an activity with no successor other than the project end) is problematic because:

It reduces the total number of paths in the network
It is required by AACE standards for all summary activities
It may mask float and make the schedule difficult to control and analyze (Correct answer)
It creates a second critical path automatically

Correct answer: It may mask float and make the schedule difficult to control and analyze

Open ends create dangling logic that can artificially inflate or hide float, making the schedule unreliable for analysis.

Question 46: The rolling wave planning technique in project scheduling means:

Resources are assigned in waves throughout the project
The schedule is updated in weekly rolling windows
All activities are planned in detail at project initiation
Near-term work is planned in detail while future work remains at a higher level (Correct answer)

Correct answer: Near-term work is planned in detail while future work remains at a higher level

Rolling wave planning is an iterative approach where near-term activities are planned in detail and distant work is planned at a summary level until more information is available.

Question 47: During a schedule review, you find that Activity G has a Late Start of Day 20 and an Early Start of Day 12. What is the Total Float for Activity G?

12 days
32 days
8 days (Correct answer)
20 days

Correct answer: 8 days

Total Float = Late Start − Early Start = 20 − 12 = 8 days.

Question 48: In the context of cpm & pert schedule development, what role does continuous professional development play for CST practitioners?

It is optional and only needed for career advancement
It ensures practitioners remain current with evolving standards, technologies, and best practices (Correct answer)
It serves primarily as a networking opportunity with no practical benefit
It is required only during the first year of certification

Correct answer: It ensures practitioners remain current with evolving standards, technologies, and best practices

Continuous professional development is essential in cpm & pert schedule development because it ensures CST practitioners remain current with evolving standards, technologies, and best practices, maintaining competency throughout their careers.

Question 49: Which of the following is a fundamental principle of p6 & ms project proficiency as it applies to Certified Scheduling Technician?

Prioritizing speed of completion over accuracy and compliance
Relying solely on personal experience without reference to guidelines
Systematic evaluation and adherence to established industry standards (Correct answer)
Avoiding documentation to streamline workflow efficiency

Correct answer: Systematic evaluation and adherence to established industry standards

A fundamental principle of p6 & ms project proficiency in Certified Scheduling Technician is the systematic evaluation and adherence to established industry standards, which ensures consistency, quality, and regulatory compliance across all professional activities.

Question 50: The 'critical path collapse' (Collapsed As-Built) method in delay analysis works by:

Removing all delay events from the as-built schedule to calculate the theoretical shortest completion (Correct answer)
Collapsing parallel paths into a single sequence to simplify analysis
Converting the CPM network to a bar chart format
Reducing resource assignments to minimum levels to identify float

Correct answer: Removing all delay events from the as-built schedule to calculate the theoretical shortest completion

The Collapsed As-Built method removes delays from the as-built schedule to reveal what the completion date would have been without those delays.

Question 51: A cost-loaded schedule baseline is formally revised through what process?

Updating activity percent-complete in the scheduling tool
A verbal approval from the project sponsor
Adjusting the resource rates in the cost management system
An authorized re-baseline or baseline change request approved through change control (Correct answer)

Correct answer: An authorized re-baseline or baseline change request approved through change control

Baseline revisions require formal change control authorization to maintain the integrity of the performance measurement baseline.

Question 52: When importing an XER file into Primavera P6, what potential conflict must the scheduler address?

Resource calendars are not included in the XER file
Activity IDs or project codes may already exist in the database, causing duplicates (Correct answer)
The project currency must match the receiving database
The baseline is automatically overwritten on import

Correct answer: Activity IDs or project codes may already exist in the database, causing duplicates

Duplicate Activity IDs or project numbers in the receiving P6 database can cause merge conflicts, requiring the scheduler to choose to update or add new records.

Question 53: In scheduling, the term 'hammock activity' refers to:

An activity on the critical path
An activity with no predecessors or successors
A summary activity that spans between two specified points in the schedule (Correct answer)
An activity with the most float

Correct answer: A summary activity that spans between two specified points in the schedule

A hammock activity is a special summary task whose duration is determined by the start and finish of other activities it spans, often used for overhead tracking.

Question 54: When a cost-loaded schedule is imported into an ERP system, which data element is critical for maintaining cost code traceability?

Activity original duration
Activity cost account or WBS code mapping (Correct answer)
Resource calendar assignments
Relationship lag values

Correct answer: Activity cost account or WBS code mapping

Cost account or WBS code mapping ensures that schedule activity costs roll up to the correct cost codes in the ERP, enabling accurate financial reporting.

Question 55: In Primavera P6, what is the purpose of the 'Activity Step' feature?

To set baseline dates for the WBS
To add float to a critical path activity
To break an activity into smaller trackable sub-tasks (Correct answer)
To link activities across project hierarchies

Correct answer: To break an activity into smaller trackable sub-tasks

Activity Steps allow schedulers to track incremental progress within a single activity without creating separate schedule activities.

Question 56: A Start-to-Start (SS) relationship with a lead of -3 days means:

Successor finishes 3 days before predecessor
Successor must wait 3 days after predecessor starts
Successor can start 3 days before predecessor starts (Correct answer)
Predecessor has 3 days of float

Correct answer: Successor can start 3 days before predecessor starts

A lead (negative lag) on an SS relationship allows the successor to begin 3 days before the predecessor starts, overlapping the activities.

Question 57: Which statement correctly describes the relationship between Total Float and Free Float?

Total Float is always greater than or equal to Free Float (Correct answer)
They are always equal on critical path activities
Free Float and Total Float are independent measures with no relationship
Free Float is always greater than or equal to Total Float

Correct answer: Total Float is always greater than or equal to Free Float

Total Float is always greater than or equal to Free Float because Free Float is a subset of the available Total Float.

Question 58: The process of determining how long each project activity will take, considering resource availability and skill levels, is called:

Activity duration estimating (Correct answer)
Schedule development
Activity resource estimating
Activity sequencing

Correct answer: Activity duration estimating

Activity duration estimating quantifies the number of work periods needed to complete each schedule activity with estimated resources.

Question 59: Which quality assurance method is most commonly applied in milestone & constraint management to verify that CST professional standards are being met?

Informal self-assessment without external validation
Annual reviews conducted exclusively by non-technical management
Relying on client satisfaction surveys as the sole measure of quality
Structured audits, peer reviews, and performance metrics aligned with industry benchmarks (Correct answer)

Correct answer: Structured audits, peer reviews, and performance metrics aligned with industry benchmarks

Structured audits, peer reviews, and performance metrics aligned with industry benchmarks are the most effective quality assurance methods in milestone & constraint management, providing objective, measurable evidence that CST standards are consistently met.

Question 60: What AACE International recommended practice provides guidance on schedule risk analysis?

AACE RP 57R-09 (Correct answer)
AACE RP 29R-03
AACE RP 10S-90
AACE RP 18R-97

Correct answer: AACE RP 57R-09

AACE RP 57R-09 provides a framework for integrated cost and schedule risk analysis, including Monte Carlo simulation methods for project schedules.

Question 61: Which AACE International Recommended Practice is specifically associated with forensic schedule analysis and delay claim methodologies?

RP 29R-03 (Correct answer)
RP 18R-97
RP 57R-09
RP 10S-90

Correct answer: RP 29R-03

AACE RP 29R-03 (Forensic Schedule Analysis) provides detailed guidance on accepted methods for analyzing schedule delays, including TIA, Window Analysis, and As-Built vs. As-Planned.

Question 62: In a project network, if Activity A has an Early Finish of Day 10 and Activity B (successor) has an Early Start of Day 8, the relationship between them includes:

A Start-to-Start dependency
A Finish-to-Finish dependency
A 2-day lead (Correct answer)
A 2-day lag

Correct answer: A 2-day lead

When the successor starts before the predecessor finishes, there is a lead (overlap) — in this case B starts 2 days before A finishes.

Question 63: A project manager notices that the SPI has been consistently below 1.0 for six weeks but the critical path has not changed. The most likely explanation is:

Only non-critical activities are behind schedule, consuming float (Correct answer)
The baseline was set incorrectly at project initiation
Resource leveling eliminated all float, making all paths critical
Critical activities are ahead of schedule masking non-critical delays

Correct answer: Only non-critical activities are behind schedule, consuming float

Non-critical activities can be behind schedule and reduce earned value without shifting the critical path, since their delays absorb available float.

Question 64: A CST professional encounters an unfamiliar situation while performing cost-loaded schedule integration duties. What is the most appropriate first action?

Apply a solution from an unrelated field without verification
Proceed based on general assumptions to avoid delays
Consult relevant standards, guidelines, or a qualified supervisor before proceeding (Correct answer)
Skip the task entirely and move to the next assignment

Correct answer: Consult relevant standards, guidelines, or a qualified supervisor before proceeding

When facing unfamiliar situations in cost-loaded schedule integration, the most appropriate action is to consult relevant standards, guidelines, or a qualified supervisor. This ensures safety, accuracy, and compliance while building professional knowledge.

Question 65: Why is stakeholder management critical to project success?

It decreases project communication.
It avoids dealing with project sponsors.
It helps align project goals with stakeholder expectations (Correct answer)
It focuses only on team members.

Correct answer: It helps align project goals with stakeholder expectations

Stakeholder management is critical to project success because it involves identifying, engaging, and managing the expectations of all individuals or groups who can affect or be affected by the project. By actively communicating with stakeholders and understanding their needs, project managers can align project goals with their expectations. This alignment fosters support, minimizes resistance, and significantly contributes to achieving project objectives.

Question 66: A resource histogram shows a technician allocated at 140% for two consecutive weeks. What does this represent?

Acceptable variance within tolerance
Planned resource pooling
Resource over-allocation requiring resolution (Correct answer)
Normal overtime scheduling

Correct answer: Resource over-allocation requiring resolution

Allocation exceeding 100% indicates over-allocation, which must be resolved through leveling or smoothing.

Question 67: When performing schedule risk analysis, a Monte Carlo simulation outputs a probability distribution. A scheduler reports the P80 date. This means:

80% of simulation runs finished on or before that date (Correct answer)
The project has an 80% chance of being over budget
80% of activities have float remaining
The schedule is 80% complete

Correct answer: 80% of simulation runs finished on or before that date

The P80 date is the date by which 80% of all simulation iterations completed, representing a high-confidence schedule target.

Question 68: In Primavera P6, what does 'Retained Logic' scheduling option do when an out-of-sequence activity is encountered?

Retains original logic and does not allow the successor to progress past the predecessor (Correct answer)
Deletes the relationship and reschedules freely
Calculates the schedule using the most optimistic dates
Ignores predecessor constraints and schedules based on actual start

Correct answer: Retains original logic and does not allow the successor to progress past the predecessor

Retained Logic holds the dependency and prevents a successor from progressing further until its predecessor is complete, even if the successor has already started.

Question 69: What does a Gantt chart's baseline bar compared to the current schedule bar indicate when the current bar extends beyond the baseline?

The activity has been removed from scope
The activity is behind schedule (Correct answer)
The activity is ahead of schedule
The activity has negative float

Correct answer: The activity is behind schedule

When the current schedule bar extends past the baseline bar, the activity is taking longer than originally planned, indicating a delay.

Question 70: In schedule risk analysis, what does a 'three-point estimate' consist of?

Optimistic, most likely, and pessimistic duration estimates for an activity (Correct answer)
Minimum, average, and maximum resource units
Best case, base case, and worst case cost estimates
Early start, planned start, and late start dates

Correct answer: Optimistic, most likely, and pessimistic duration estimates for an activity

A three-point estimate uses optimistic (O), most likely (M), and pessimistic (P) durations to model activity duration uncertainty for risk analysis.

Question 71: On a project, the actual finish date of an activity is earlier than the baseline finish date. This is referred to as:

Float consumption
Negative float
Schedule gain (positive float against baseline)
A baseline deviation with positive schedule variance (Correct answer)

Correct answer: A baseline deviation with positive schedule variance

When actual completion precedes the baseline date, this is a positive schedule variance or baseline deviation indicating the work finished early.

Question 72: When fast-tracking introduces a start-to-start relationship with a lag, what does the lag represent?

The minimum required delay before the successor activity can begin after its predecessor starts (Correct answer)
The amount of total float remaining on the activity
The crash cost associated with accelerating the activity
The peak resource demand for the overlapped activities

Correct answer: The minimum required delay before the successor activity can begin after its predecessor starts

A lag in a start-to-start relationship defines the minimum waiting period after the predecessor starts before the successor is permitted to begin.

Question 73: Which factor most impacts the accuracy of a project schedule?

Accurate estimation of task durations (Correct answer)
Resource availability.
Late stakeholder meetings.
Client budget increases.

Correct answer: Accurate estimation of task durations

The accuracy of a project schedule is most significantly impacted by the accurate estimation of task durations. If the time required for individual tasks is underestimated or overestimated, the entire schedule can become unreliable, leading to missed deadlines, resource conflicts, or budget overruns. Realistic and precise duration estimates, often based on historical data and expert judgment, are fundamental to creating a dependable project timeline.

Question 74: Which technique involves adding resources to an over-allocated activity to shorten its duration and reduce the contention period?

Crashing (Correct answer)
Resource leveling
Fast-tracking
Reverse resource allocation

Correct answer: Crashing

Crashing adds resources to shorten activity duration, potentially reducing or eliminating the over-allocation window.

Question 75: What is the primary difference between resource leveling and resource smoothing?

They are interchangeable terms in scheduling
Leveling may extend project duration; smoothing does not extend it beyond the critical path (Correct answer)
Leveling applies only to labor; smoothing applies to equipment
Smoothing may extend project duration; leveling does not

Correct answer: Leveling may extend project duration; smoothing does not extend it beyond the critical path

Resource leveling resolves over-allocations and may delay the project end date, whereas resource smoothing only uses available float and never extends the schedule.

Question 76: What does scope management involve?

Ignoring change requests.
Focusing only on project risks.
Expanding the project beyond original objectives.
Ensuring project includes only necessary work (Correct answer)

Correct answer: Ensuring project includes only necessary work

Scope management is a critical project management process focused on defining and controlling what is and is not included in the project. Its primary objective is to ensure that the project delivers only the agreed-upon features and functions, preventing scope creep. By carefully managing the project's boundaries, it helps keep the project focused on its original objectives, ensuring efficient resource allocation and successful completion.

Question 77: Which process group involves tracking and reviewing project progress?

Planning.
Monitoring and Controlling (Correct answer)
Initiating.
Executing.

Correct answer: Monitoring and Controlling

The Monitoring and Controlling process group involves tracking, reviewing, and regulating the progress and performance of the project. This includes comparing actual project performance against the project management plan, identifying any variances, and taking corrective actions to ensure project objectives are met. It also encompasses managing changes, assessing risks, and ensuring that the project stays on track throughout its lifecycle.

Question 78: In a Monte Carlo schedule simulation, what does a wider spread in the S-curve output indicate?

Greater uncertainty and risk in the schedule (Correct answer)
A more detailed and accurate schedule
Better resource allocation
Fewer activities on the critical path

Correct answer: Greater uncertainty and risk in the schedule

A wider S-curve spread in Monte Carlo output indicates that the range of possible completion dates is large, reflecting higher schedule uncertainty and risk.

Question 79: Which condition defines a 'hammock activity' in a CPM schedule?

An activity with zero duration used as a reference point
An activity that spans the entire project duration and summarizes all work
An activity that has both an SS and FF relationship with the same predecessor
An activity that connects two specific points in the schedule and derives its duration from the dates of those points (Correct answer)

Correct answer: An activity that connects two specific points in the schedule and derives its duration from the dates of those points

A hammock activity's duration is not estimated independently; it is determined by the start of one activity and the finish of another, 'hanging' between them.

Question 80: Which constraint should be used when a task can begin no earlier than the receipt of a government permit expected on a fixed date?

As Soon As Possible (ASAP)
Start No Earlier Than (SNET) (Correct answer)
Must Finish On (MFO)
Finish No Later Than (FNLT)

Correct answer: Start No Earlier Than (SNET)

SNET is a soft constraint that prevents a task from starting before a specified date, appropriate for externally-driven early boundaries.

Question 81: What is the primary ethical obligation of a CST professional when a conflict of interest arises during cost-loaded schedule integration activities?

Disclose the conflict to all relevant parties and recuse from the decision if necessary (Correct answer)
Resolve the conflict privately without informing stakeholders
Proceed while favoring the outcome that benefits the professional personally
Ignore the conflict if it does not directly affect the current task

Correct answer: Disclose the conflict to all relevant parties and recuse from the decision if necessary

The primary ethical obligation when a conflict of interest arises in cost-loaded schedule integration is to disclose it to all relevant parties and, if necessary, recuse from the decision. This maintains professional integrity and stakeholder trust.

Question 82: When a CPM schedule is updated with actual progress, an activity that is 50% complete but has used 70% of its planned duration is exhibiting:

Float consumption that has no bearing on the critical path
A potential overrun — it is behind the planned rate of progress (Correct answer)
A PERT pessimistic scenario that was anticipated in the baseline
Positive schedule variance requiring no action

Correct answer: A potential overrun — it is behind the planned rate of progress

Completing only 50% of work while consuming 70% of duration signals that the activity is progressing slower than planned and may delay successors.

Question 83: Which delay analysis technique overlays the as-planned schedule against the as-built schedule to identify where delays originated?

Time Impact Analysis (TIA)
Collapsed As-Built (CAB)
Window Analysis
As-Planned vs. As-Built comparison (Correct answer)

Correct answer: As-Planned vs. As-Built comparison

The As-Planned vs. As-Built comparison graphically overlays both schedules to identify divergence points and delay sources.

Question 84: What term describes the process of assigning specific named individuals (rather than generic roles) to project activities?

Workforce planning
Resource identification
Staff acquisition
Resource assignment (Correct answer)

Correct answer: Resource assignment

Resource assignment maps specific individuals or named resources to scheduled activities in the project plan.

Question 85: What does Interfering Float (also called Interfering Slack) represent?

Negative float indicating a schedule overrun
Float shared among all activities on the critical path
The difference between Total Float and Free Float (Correct answer)
Float that belongs exclusively to a single activity

Correct answer: The difference between Total Float and Free Float

Interfering Float = Total Float − Free Float, representing float that, if used, would delay a successor's Early Start.

Question 86: Which estimating technique bases activity duration estimates on actual durations from similar previous projects?

Bottom-up estimating
Three-point estimating
Analogous estimating (Correct answer)
Parametric estimating

Correct answer: Analogous estimating

Analogous estimating uses historical data from similar past projects as a basis for estimating current project durations.

Question 87: An activity has a Total Float of 8 days and a Free Float of 3 days. If the scheduler uses 5 days of Total Float on this activity, what is the impact on successor activities?

Free Float increases to 8 days
The project end date is delayed by 2 days
No impact — 5 days is within the Total Float
The Early Start of at least one successor is delayed (Correct answer)

Correct answer: The Early Start of at least one successor is delayed

Using 5 days of Total Float when only 3 days of Free Float exist means 2 days of Interfering Float are consumed, delaying the Early Start of a successor.

Question 88: When applying the Critical Path Method, a 'near-critical path' is significant because:

It represents activities with the highest resource requirements
It has very little float and could become critical if delays occur (Correct answer)
It identifies activities that should be fast tracked first
It has the longest duration in the network

Correct answer: It has very little float and could become critical if delays occur

Near-critical paths have minimal float and pose schedule risk because small delays can make them critical.

Question 89: What is schedule risk exposure?

The total number of risks identified in the risk register
The sum of all float across the project network
The product of the probability of a risk event occurring and its schedule impact in days (Correct answer)
The difference between the planned and actual completion date

Correct answer: The product of the probability of a risk event occurring and its schedule impact in days

Schedule risk exposure quantifies the expected schedule impact of a risk by multiplying its probability of occurrence by the number of days of delay it would cause.

Question 90: Which risk response strategy involves adding parallel activities to reduce schedule risk?

Fast-tracking (Correct answer)
Risk transfer
Risk acceptance
Risk avoidance

Correct answer: Fast-tracking

Fast-tracking overlaps activities that were originally planned in sequence, compressing the schedule and reducing the risk of late completion.

Question 91: In Microsoft Project, what does the 'Peak' field in a resource usage view represent?

The baseline allocation for the resource
The maximum units allocated to a task in any single time period (Correct answer)
The total work assigned across all tasks
The resource's maximum available capacity

Correct answer: The maximum units allocated to a task in any single time period

Peak shows the highest resource allocation percentage occurring in any single time period, useful for spotting overallocation spikes.

Question 92: A Finish-to-Finish dependency with a lag of 5 days means:

The successor must start 5 days after the predecessor finishes
The predecessor must wait 5 days before starting
Both activities must finish within 5 days of each other
The successor must finish 5 days after the predecessor finishes (Correct answer)

Correct answer: The successor must finish 5 days after the predecessor finishes

An FF+5 relationship means the successor activity cannot finish until 5 days after the predecessor finishes.

Question 93: Which cost-loading technique assigns budget to an activity based on the number of units of work completed versus total planned units?

Fixed formula method (50/50)
Percent complete weighted milestone method
Units complete method (Correct answer)
Level of effort method

Correct answer: Units complete method

The units complete method calculates earned value by multiplying the unit budget rate by the count of completed units, ideal for repetitive tasks.

Question 94: What is the primary ethical obligation of a CST professional when a conflict of interest arises during cpm & pert schedule development activities?

Disclose the conflict to all relevant parties and recuse from the decision if necessary (Correct answer)
Ignore the conflict if it does not directly affect the current task
Resolve the conflict privately without informing stakeholders
Proceed while favoring the outcome that benefits the professional personally

Correct answer: Disclose the conflict to all relevant parties and recuse from the decision if necessary

The primary ethical obligation when a conflict of interest arises in cpm & pert schedule development is to disclose it to all relevant parties and, if necessary, recuse from the decision. This maintains professional integrity and stakeholder trust.

Question 95: Which quality assurance method is most commonly applied in p6 & ms project proficiency to verify that CST professional standards are being met?

Annual reviews conducted exclusively by non-technical management
Informal self-assessment without external validation
Relying on client satisfaction surveys as the sole measure of quality
Structured audits, peer reviews, and performance metrics aligned with industry benchmarks (Correct answer)

Correct answer: Structured audits, peer reviews, and performance metrics aligned with industry benchmarks

Structured audits, peer reviews, and performance metrics aligned with industry benchmarks are the most effective quality assurance methods in p6 & ms project proficiency, providing objective, measurable evidence that CST standards are consistently met.

Question 96: What does a Work Breakdown Structure (WBS) help with?

Preparing procurement documentation.
Assigning team salaries.
Creating risk assessments only.
Breaking down project tasks into smaller components (Correct answer)

Correct answer: Breaking down project tasks into smaller components

A Work Breakdown Structure (WBS) is a fundamental project management tool that hierarchically decomposes the total scope of work into smaller, more manageable components. This process helps organize and define all deliverables and work packages required to achieve project objectives. By breaking down complex projects, it ensures that all necessary tasks are identified, accounted for, and can be assigned and tracked effectively.

Question 97: What does a Variance at Completion (VAC) of -$30,000 indicate?

The project has already overspent by $30,000
The project is expected to overrun its budget by $30,000 (Correct answer)
The project is $30,000 ahead of the schedule plan
The project is expected to finish $30,000 under budget

Correct answer: The project is expected to overrun its budget by $30,000

VAC = BAC - EAC; a negative VAC means the Estimate at Completion exceeds the Budget at Completion, projecting a cost overrun.

Question 98: What is the purpose of a schedule management plan?

To establish policies, procedures, and documentation for planning and managing the project schedule (Correct answer)
To document the actual project schedule with all activity dates
To identify all project risks that could affect the schedule
To define the work breakdown structure for the project

Correct answer: To establish policies, procedures, and documentation for planning and managing the project schedule

The schedule management plan defines how the schedule will be developed, maintained, and controlled throughout the project.

Question 99: What is the primary purpose of project management?

To increase project expenses.
To eliminate project planning.
To avoid stakeholder communication.
To ensure projects are completed efficiently and successfully (Correct answer)

Correct answer: To ensure projects are completed efficiently and successfully

The primary purpose of project management is to ensure that projects are completed efficiently and successfully, meeting their defined objectives within specified constraints of scope, time, and budget. It involves applying knowledge, skills, tools, and techniques to project activities to achieve project requirements. Effective project management minimizes risks, optimizes resource utilization, and delivers the intended value to stakeholders.

Question 100: A scheduler is asked to 'level the cost-loaded S-curve.' What adjustment is most likely being requested?

Compressing the schedule to reduce overall project duration
Eliminating all cost contingency from the baseline
Reducing the total project budget to match available funding
Smoothing spending peaks and valleys by shifting non-critical activities within float (Correct answer)

Correct answer: Smoothing spending peaks and valleys by shifting non-critical activities within float

Cost-curve leveling shifts float-containing activities to spread spending more evenly, reducing financing costs and resource spikes.

Certified Scheduling Technician (CST)

The AACE International CST certification validates foundational knowledge and skills in project planning and scheduling, covering schedule creation, maintenance, cost loading, and risk analysis within the Total Cost Management framework.

100

Questions

180 min

Time Limit

70%

To Pass

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