Software development lifecycle in Intro to Computing - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Identify the correct order of SDLC phases

Which of the following lists the Software Development Lifecycle (SDLC) phases in the correct order from start to finish?

A 3,6,1,2,5,4

B 1,3,6,2,4,5

C 3,1,6,2,4,5

D 3,1,2,6,4,5

💡 Hint

Think about gathering needs before designing and coding.

The correct SDLC order starts with Requirement Analysis (3), then Design (1), Implementation (6), Testing (2), Deployment (4), and finally Maintenance (5).

❓ trace

intermediate

Trace the SDLC phase for a scenario

A team is fixing bugs found after releasing the software to users. Which SDLC phase are they in?

A Maintenance

B Requirement Analysis

C Testing

D Design

💡 Hint

This phase happens after deployment to keep software working well.

Maintenance is the phase where bugs found after deployment are fixed and software is updated.

❓ Comparison

advanced

Compare Waterfall and Agile SDLC models

Which statement correctly compares Waterfall and Agile models in SDLC?

A Waterfall is linear and sequential; Agile is iterative and flexible.

B Waterfall delivers software in small parts; Agile delivers all at once.

C Agile has no testing phase; Waterfall tests continuously.

D Waterfall allows changes anytime; Agile requires all requirements upfront.

💡 Hint

Think about how each model handles phases and changes.

Waterfall follows a strict linear sequence of phases, while Agile works in repeated cycles allowing flexibility and changes.

❓ identification

advanced

Identify the SDLC phase from a flowchart

Look at the flowchart steps:
1. Gather user needs
2. Create blueprints
3. Write code
4. Run tests
5. Release software
6. Fix issues after release

Which phase corresponds to step 2?

A Requirement Analysis

B Implementation

C Testing

D Design

💡 Hint

Blueprints are like plans or drawings before building.

Step 2 is Design, where the software's structure and details are planned before coding.

🚀 Application

expert

Determine the impact of skipping Testing phase

If a software project skips the Testing phase and moves directly from Implementation to Deployment, what is the most likely outcome?

A The software will run faster without testing overhead.

B Users may encounter many errors and crashes after deployment.

C Software will have fewer bugs because testing wastes time.

D Maintenance phase will be unnecessary since testing was skipped.

💡 Hint

Testing helps find problems before users see them.

Skipping Testing means bugs and errors are not found early, causing users to face issues after deployment.