Software Development Lifecycle Flashcards

What is 'technical debt' in software development?

Answer: The accumulated cost of shortcuts and quick fixes that must eventually be addressed

Technical debt refers to the future rework required because of expedient but suboptimal coding decisions made earlier.

A tobacconist's e-commerce platform goes down after a deployment. The team reverts to the previous working version. This is called:

Answer: A rollback

A rollback restores a system to a previously stable version after a failed deployment introduces problems.

What is 'DevOps' in the context of software development?

Answer: A culture and practice that unifies software development and IT operations to speed delivery

DevOps combines development and operations teams and practices to shorten the development cycle and deliver software more reliably.

In a code review, what is the primary goal?

Answer: To identify defects, improve code quality, and share knowledge among team members

Code reviews involve peers examining each other's code to catch bugs early, enforce standards, and spread knowledge.

Which metric measures how quickly a software team can recover from a system failure?

Answer: Mean Time to Recovery (MTTR)

MTTR measures the average time it takes to restore a system to full operation after an incident or failure.

What is the purpose of a 'staging environment' in the SDLC?

Answer: To test software in a production-like environment before actual release

A staging environment mirrors production as closely as possible so teams can validate releases without risking live systems.

Which Agile concept refers to the amount of work a team completes in a single sprint, used for future planning?

Answer: Velocity

Velocity measures the total story points or work items completed per sprint, helping teams forecast future capacity.