Facebook Software Engineer Mock Interview

Practice 26 Facebook Software Engineer interview questions covering algorithms, system design, and coding challenges.

Question 16 of 26

Many Facebook Software Engineers prefer to program in Java. Can you describe how you would implement linear search in JavaScript?

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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 asks you to detail the process you use to perform a specific operation within a software programming language. During an interview, you should listen carefully to each question the interviewer asks. Always make sure that the interviewer completes the question before you begin to formulate your answer. This will ensure that you respond to the right question and provide the interviewer with the information they are seeking.

William Swansen

"The easiest way to implement a linear search within JavaScript is to create an algorithm that examines each element in the list and determines whether it matches the value I have defined. Once I've created the algorithm, I can repurpose it by simply redefining the value and/or the list I am using. This is just one of the Java programming techniques I will use if hired as a Software Engineer here at Facebook."

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26Facebook Interview Questions & Answers

Technical

1.What are some of the programming languages you are familiar with, and which ones do you prefer?

Operational

2.If hired by Facebook, can you estimate what portion of your day will involve coding and other activities you will perform when not coding?

Behavioral

3.Facebook is very proud of our products and the people who develop them. In your opinion, what distinguishes a great software engineer from an average one?

Technical

4.What do you look for or check when reviewing another team member's code?

Technical Engineer

5.What do you feel are the critical principles of good software engineering?

Operational

6.Walk me through your process for designing scalable applications.

Operational

7.Describe the process you use to create a program, from requirements definition to delivery.

Operational

8.How do you go about addressing errors in your code?

Technical

9.Can you describe Facebook's software development life cycle, as you understand it?

Technical

10.Here at Facebook, we have embraced Agile methodology. How experienced are you with the Agile software development process?

Technical

11.Please describe responsive design and the difference between fixed and fluid layouts.

Operational

12.What process do you use to test and find bugs in an application you've developed?

Technical

13.Please describe a stack and the two operations it performs.

Technical

14.What are the differences between an array and a stack?

Operational

15.How would you implement Dijkstra's Shortest Path using a programming language with which you are familiar?

Operational

16.Many Facebook Software Engineers prefer to program in Java. Can you describe how you would implement linear search in JavaScript?

Technical

17.What are the differences between blocking and non-blocking calls in the context of Node.js?

Technical

18.Facebook web developers are incorporating HTML5 in their most recent websites. Can you describe the functions of web workers in HTML5?

Operational

19.How do you go about organizing CSS files, and why do you prefer this approach?

Operational

20.Walk me through the steps to build a single page application with multiple sections using the programming framework in which you typically work.

Technical

21.Can you define black box testing and white box testing and discuss the differences between them?

Situational

22.How would you accelerate the response time of a website you created for us here at Facebook?

Operational

23.Which do you prefer - a micro-service approach or a monolithic app?

Situational

24.Can you describe a tough software development problem you encountered in your last job and discuss how you solved it?

Behavioral

25.Here at Facebook, we value work life balance and initiative. What personal software development projects have you worked on outside of work?

Technical Engineer

Facebook Software Engineer Mock Interview

Many Facebook Software Engineers prefer to program in Java. Can you describe how you would implement linear search in JavaScript?

26Facebook Interview Questions & Answers

1.What are some of the programming languages you are familiar with, and which ones do you prefer?

2.If hired by Facebook, can you estimate what portion of your day will involve coding and other activities you will perform when not coding?

3.Facebook is very proud of our products and the people who develop them. In your opinion, what distinguishes a great software engineer from an average one?

4.What do you look for or check when reviewing another team member's code?

5.What do you feel are the critical principles of good software engineering?

6.Walk me through your process for designing scalable applications.

7.Describe the process you use to create a program, from requirements definition to delivery.

8.How do you go about addressing errors in your code?

9.Can you describe Facebook's software development life cycle, as you understand it?

10.Here at Facebook, we have embraced Agile methodology. How experienced are you with the Agile software development process?

11.Please describe responsive design and the difference between fixed and fluid layouts.

12.What process do you use to test and find bugs in an application you've developed?

13.Please describe a stack and the two operations it performs.

14.What are the differences between an array and a stack?

15.How would you implement Dijkstra's Shortest Path using a programming language with which you are familiar?

16.Many Facebook Software Engineers prefer to program in Java. Can you describe how you would implement linear search in JavaScript?

17.What are the differences between blocking and non-blocking calls in the context of Node.js?

18.Facebook web developers are incorporating HTML5 in their most recent websites. Can you describe the functions of web workers in HTML5?

19.How do you go about organizing CSS files, and why do you prefer this approach?

20.Walk me through the steps to build a single page application with multiple sections using the programming framework in which you typically work.

21.Can you define black box testing and white box testing and discuss the differences between them?

22.How would you accelerate the response time of a website you created for us here at Facebook?

23.Which do you prefer - a micro-service approach or a monolithic app?

24.Can you describe a tough software development problem you encountered in your last job and discuss how you solved it?

25.Here at Facebook, we value work life balance and initiative. What personal software development projects have you worked on outside of work?

26.How would you go about explaining Facebook's cloud computing environment to someone who doesn't have a technical background?