Senior Software Engineer Mock Interview
Practice 47 Senior Software Engineer interview questions covering system design, architecture decisions, and technical leadership.
Question 21 of 47
What is a stack in the context of software development, and how can it be used to simplify the SDLC?
Why the Interviewer Asks This Question
Example Answer
How to Answer
Community Answers
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
This question may look familiar because you may have been asked about the same topic earlier in the interview. It is common for interviewers to ask similar questions throughout the interview. They do this for two reasons. The first is to explore the topic in more detail from a variety of different angles. This indicates that the topic is important to their operations. The second reason for asking the same question multiple times is to confirm that your answers are consistent throughout the interview. Answering truthfully and keeping your answers concise will ensure that you are consistent during the entire interview.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"A stack is a linear data structure and uses a last in first out data retrieval methodology. The stack has two basic operations: push, which is the insertion of a data element from the top of the stack, and pop, which retrieval of the last data element inserted into the stack. A third operation called peek may also be used. This involves examining an element within the stack without removing it. I usually select a stack data structure when dealing with elements that are linked and for applications related to either in inventories or financial operations."
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
When you recognize that the interviewer has asked you a question that they already asked you earlier in the interview, avoid the temptation to respond that you've already answered this question. Try to recall your previous answer and respond similarly. Interviewers are not only interested in your knowledge during an interview, but they also are gauging how you behave in specific situations, your communication style, and other items which will help them determine how well you will fit into their organization.
Interview Coach
Jaymie
A real coach, not AI. I read every answer myself and write back with personalized feedback.
Typically responds within 24 hours.
0 - Character Count
Anonymous Answer
If you're referring to a Software Stack, it is the different layers of an application that communicate with each other to perform operations. A software stack is typically broken out into 3 primary layers (4 if you include the operating system): the Presentation Layer, Logic Layer, and Data Layer, or in more specific terms the Webserver, the Application Server, and the Database Server.
If you're referring to the call stack, then it is the data stack for which subroutines know which active subroutine it should yield control to once the subroutine is finished processing. It abides by the LIFO retrieval process.
Amanda's Feedback
You clearly understand what a stack is and how they work. Consider expanding your answer to ensure you adequately address how it simplifies the SDLC. If possible, talk briefly about a specific example of a time when you used a stack to simplify the SDLC in a project. This will show the interviewer that you understand the theoretical use of a stack as well as how to implement them in real-world settings.
Unlock All 47 Senior Software Engineer Questions
Unlock expert responses to system design and leadership questions interviewers expect.
Get StartedJump to Question