CDCS CDCS Capacity Planning & Lifecycle Management 1 — Questions and Answers
Question 1: What is a DCIM (Data Center Infrastructure Management) system primarily used for?
- Managing hypervisor virtualization layers
- Providing real-time visibility and management of power, cooling, space, and assets across data center infrastructure (Correct answer)
- Automating software deployment pipelines
- Monitoring network packet loss and latency
Correct answer: Providing real-time visibility and management of power, cooling, space, and assets across data center infrastructure
DCIM software integrates data from power, cooling, and IT systems to provide real-time visibility into capacity, energy usage, and asset lifecycle across the entire data center.
Question 2: In data center capacity planning, what is 'white space' capacity?
- Unused network bandwidth available for new deployments
- Available raised floor or cage space that can accommodate additional IT equipment (Correct answer)
- Uncommitted storage capacity on SAN arrays
- The gap between provisioned and utilized server CPU cores
Correct answer: Available raised floor or cage space that can accommodate additional IT equipment
White space refers to the physical floor area within a data center that is available—not yet occupied by IT cabinets or equipment—and represents deployable capacity for new hardware.
Question 3: What is the recommended maximum power density per cabinet that most data centers are designed to support without special cooling?
- 1–3 kW per cabinet
- 5–10 kW per cabinet (Correct answer)
- 20–30 kW per cabinet
- 50+ kW per cabinet
Correct answer: 5–10 kW per cabinet
Traditional data center designs support approximately 5–10 kW per cabinet using standard raised-floor air cooling; higher densities typically require supplemental or liquid cooling solutions.
Question 4: Which process involves auditing all hardware assets in a data center to reconcile physical inventory with CMDB or DCIM records?
- Rack elevation planning
- Physical asset audit / walkdown (Correct answer)
- Power chain documentation
- Capacity baseline review
Correct answer: Physical asset audit / walkdown
A physical asset audit (walkdown) involves physically verifying every installed device against system records to identify discrepancies, orphaned equipment, and unlabeled assets.
Question 5: What does 'right-sizing' mean in the context of data center server provisioning?
- Ensuring all servers are the same physical form factor
- Matching server compute resources to actual workload requirements to avoid over-provisioning (Correct answer)
- Installing the maximum RAM and CPU in every server
- Standardizing rack heights across all cabinets
Correct answer: Matching server compute resources to actual workload requirements to avoid over-provisioning
Right-sizing aligns the allocated CPU, memory, and storage resources to the actual demand of each workload, preventing wasted capacity and unnecessary power draw from over-provisioned hardware.
Question 6: What is the primary goal of a data center consolidation project?
- Increasing the number of physical locations for redundancy
- Reducing the number of facilities, servers, and infrastructure footprint to lower cost and complexity (Correct answer)
- Expanding total raw compute capacity
- Migrating all workloads to a single hypervisor platform
Correct answer: Reducing the number of facilities, servers, and infrastructure footprint to lower cost and complexity
Data center consolidation reduces the number of physical facilities and underutilized servers through virtualization, migration, and decommissioning, lowering CapEx, OpEx, and energy consumption.
CDCS CDCS Capacity Planning & Lifecycle Management 1
What is a DCIM (Data Center Infrastructure Management) system primarily used for?