SDLC or Software Development Life Cycle is a software development process that produces software in the most efficient way possible. SDLC includes a detailed plan for how a software application can be developed, altered, maintained, or even replaced. SDLC involves several distinct stages, which include planning, design, building, testing, and deployment. Depending on the hiring manager level you are interviewing with, you'll need to answer questions related to the SDLC life cycle. If the manager is hands-on, has a history of writing code, and knows the SDLC, you might want to mention what types of methodologies you have used. Some of the most popular ones are Waterfall, Agile, and Spiral Model. If you're interviewing with a senior-level manager that hasn't done much coding but understands the SDLC, then your answer might be a higher level (strategic response). Either way, it's good to have a solid foundation of how SDLC works. The whole purpose of creating the SDLC foundational architecture is to lower the cost of software development while improving quality and shortening production time.

"I have sound knowledge of the entire SDLC process, and have used it as the foundation of my development in my career. During my development career, I have used a few different SDLC methodologies that I am very comfortable with. They are Waterfall, Agile, V-Model, Iterative, and Spiral Model. I fully understand SDLC and the important stages that are required for quality software development and execution. It starts with the following stages:

Requirement analysis
Technical and business specifications
Software architecture and infrastructure
Implementation/Integration
Testing
Documentation
Training and support
Maintenance"