CTE Software Development Lifecycle 3 — Questions and Answers
Question 1: A telecom software team uses Continuous Integration (CI) pipelines. Which SDLC principle does CI most directly support?
- Late integration reduces risk
- Frequent small integrations catch defects early (Correct answer)
- Testing should occur only at project end
- Requirements must be frozen before coding
Correct answer: Frequent small integrations catch defects early
CI embodies the principle of integrating code changes frequently so defects are detected and resolved while context is fresh.
Question 2: During which SDLC phase would a telecom architect decide between a microservices vs. monolithic architecture for a new 5G network orchestration platform?
- Requirements Analysis
- System Design (Correct answer)
- Coding
- User Acceptance Testing
Correct answer: System Design
System Design is where high-level architectural decisions, including service decomposition strategies, are made based on gathered requirements.
Question 3: A telecom CTE exam scenario shows a project where end users sign off on the software before go-live. This sign-off occurs during:
- Alpha Testing
- Unit Testing
- User Acceptance Testing (UAT) (Correct answer)
- Smoke Testing
Correct answer: User Acceptance Testing (UAT)
UAT is the final validation phase where actual end users confirm the software meets their business needs before production deployment.
Question 4: Which SDLC model is characterized by a 'V' shape where each development stage has a corresponding testing stage directly opposite it?
- Spiral Model
- Agile Model
- V-Model (Correct answer)
- RAD Model
Correct answer: V-Model
The V-Model pairs each development phase (requirements, design, coding) with a corresponding verification or validation testing phase.
Question 5: In a DevOps-enabled telecom software pipeline, 'shift-left testing' means:
- Moving QA engineers to the left side of the office
- Conducting testing earlier in the SDLC (Correct answer)
- Postponing testing until after deployment
- Reducing the number of test cases
Correct answer: Conducting testing earlier in the SDLC
Shift-left testing moves quality activities earlier in the SDLC to detect defects when they are cheapest to fix.
Question 6: A telecom OSS project uses story points to estimate effort in two-week sprints. This estimation practice is associated with which SDLC methodology?
- Waterfall
- PRINCE2
- Scrum (Correct answer)
- CMMI
Correct answer: Scrum
Scrum uses story points and time-boxed sprints as core planning and estimation mechanisms for iterative development.
Question 7: When a telecommunications company retires a legacy mediation platform, which SDLC phase governs the data migration and system decommissioning plan?
- Implementation
- Testing
- Maintenance
- End-of-Life/Retirement (Correct answer)
Correct answer: End-of-Life/Retirement
The End-of-Life/Retirement phase covers decommissioning, data archiving, migration, and safely sunsetting legacy systems.
CTE Software Development Lifecycle 3
A telecom software team uses Continuous Integration (CI) pipelines.
Which SDLC principle does CI most directly support?