Upload Button Icon Add office photos

Facebook

Compare button icon Compare button icon Compare

Filter interviews by

Facebook Associate Software Engineer Interview Questions and Answers

Updated 4 Jul 2022

Facebook Associate Software Engineer Interview Experiences

1 interview found

I appeared for an interview in Jun 2022.

Round 1 - Technical 

(1 Question)

  • Q1. Focus on algorithms - trees, graphs. Questions on improving algorithm performance. Converting algorithm to code.

Interview Preparation Tips

Interview preparation tips for other job seekers - Deep Study - Graph data structure, Tree Data Structure, and solve as many problems as you can on Graph and Tree

Interview questions from similar companies

I applied via Campus Placement

Interview Preparation Tips

Round: Resume Shortlist
Experience: They selected 10 students from our college from CS and IT .They are looking for guys with extra projects done during college .App development will be a bonus ,contribution to open source and competitive programming will help for shortlisting.
Some of my friends had research papers published and they too got selected.

Round: Test
Experience: Have to write code snippet for 4 questions in 45 minutes
1.Difference between hour hand and minute hand
2.longest palindromic sub string.
3.Product Array puzzle
4.Some question related to matrix

Tips: All question were from geeksforgeeks
So practice it well ..u will make through it

Round: Test
Experience: Long Discussion on projects
They will scan each and every line of your Resume ,so dont write bullshits..
I wrote about interest in AI and got screwed..Discussion on college projects and final year project.
Then asked me to design a snake and ladder game OOPS concepts
Told me to find sum of all elements of sub matrix..(hint pre-processing the matrix)
Asked me about sessions and cookies
Gave a query to write on database indexing (dont remember exactly)
Asked me the code of the difference between hour hand and minute hand and extended it wid the second hand
Asked me as how to implement a dictionary
asked about TRIES ,CODE SNIPPET ON THE SHARED DOCS
One of my friend was asked to implement (set) of STL
Tips: The interviewer was cool guy..helped me a lot always made me comfortable.Interact with them as much as possible

Round: Test
Experience: Wid the CTO of the company .
Started wid the projects again .ACID properties,Database transactions,Concurrency Control
Optimization in database.
Then he asked me to code a function
Given a hash function applied on letters of English words ,un-hash it.Took me 45 minutes to reach the solution ,he helped me a lot.
Asked me to write the code for diameter of a binary tree
Asked me write the code for Boolean Matrix
One of my friend was asked to a question in which there was a bug in a m*n matrix and we have to find the bug(hint dfs or bfs)
Tips: keep calm ,,just keep talking ad he will help u a lot...

Round: HR
Experience: This was the toughest round for me...I had cleared all the rounds but they rejected me in the HR round ,,,dont know where I screwed..Learn every thing of Zomato..
They offered me an internship and thereafter they would look to give a PPO ...!!!lets see what happens

Skills: Coding Skills And Knowledge On Data Structures
Duration: 3
College Name: NIT Srinagar

Interview Questionnaire 

9 Questions

  • Q1. Write a regex for email validation?
  • Ans. 

    Regex for email validation

    • Start with a string of characters followed by @ symbol

    • Followed by a string of characters and a period

    • End with a string of characters with a length of 2-6 characters

    • Allow for optional subdomains separated by periods

    • Disallow special characters except for . and _ in username

  • Answered by AI
  • Q2. Parse the XML? and store the output in JSON. Discussed different approaches?
  • Q3. Print prime numbers in a given range and optimize the solution?
  • Ans. 

    Print prime numbers in a given range and optimize the solution.

    • Use Sieve of Eratosthenes algorithm to generate prime numbers efficiently

    • Start with a boolean array of size n+1, mark all as true

    • Loop through the array and mark all multiples of each prime as false

    • Print all the indexes that are still marked as true

  • Answered by AI
  • Q4. Puzzle – 25 horses – 5 lanes, find fastest 3 horses?
  • Q5. Web related questions on Sessions and cookies?
  • Q6. A lot of discussion on my resume, experience etc
  • Q7. Find angle between hour hand and minute hand in clock if time is given? Write a program or pseudo code?
  • Ans. 

    Find angle between hour and minute hand in a clock given the time.

    • Calculate the angle made by the hour hand with respect to 12 o'clock position

    • Calculate the angle made by the minute hand with respect to 12 o'clock position

    • Find the difference between the two angles and take the absolute value

    • If the angle is greater than 180 degrees, subtract it from 360 degrees to get the smaller angle

  • Answered by AI
  • Q8. A hash function was written to convert a string into a hash. Write a un-hash function to revert it(from hash to string)?
  • Ans. 

    To un-hash a string, use a reverse algorithm to convert the hash back to the original string.

    • Create a reverse algorithm that takes the hash as input and outputs the original string

    • Use the same logic as the hash function but in reverse order

    • If the hash function used a specific algorithm, use the inverse of that algorithm to un-hash the string

  • Answered by AI
  • Q9. He discussed about expectations and role. Asked me if I have any questions. He said to me “yaha aana hai to marwani padegi. tyar ho”? I smiled and asked what are the work timings? He said 9-9 and I was kin...

Interview Preparation Tips

General Tips: I applied through a recruiter. Then I got a call from Zomato HR. It was for LAMP developer profile. She asked me about my profile and also shared some expectations from the role. She asked me to come for F2F rounds to take the process further
Skills: Web development, JSON, Algorithm
College Name: na
Motivation: Overall process was not very tough. But they have start up culture. People work their for 11-12 hours a day. Sometimes on Saturday as well. So people who are geeks or have nothing in life to do except their job can go and join

Skills evaluated in this interview

I applied via Recruitment Consultant and was interviewed before Jul 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. DS Algo Questions on Trees. Leadership Principles

Interview Preparation Tips

Interview preparation tips for other job seekers - Read up on DS Algo and white paper coding and Leadership Principles

Interview Questionnaire 

2 Questions

  • Q1. Data struct,algo,
  • Q2. High level data structs and algos

Interview Preparation Tips

Round: Problem Statement
Experience: coding and submission before face to face interview shortlisting
Tips: practice coding ,coding is key to success for SE

Round: Resume Shortlist
Experience: based on marks ,I was called for F2F
Tips: the ppt was to be submitted explaining the approach

Round: Technical Interview
Experience: a lot of brain storming
Tips: understands the nitty gritty of the structs and algos

Round: Technical Interview
Experience: exact code was to be written instead of pseudo code
Tips: get hold of DS,Algos

I appeared for an interview before Sep 2016.

Interview Questionnaire 

5 Questions

  • Q1. Search an element in sorted rotated array.
  • Ans. 

    Search an element in sorted rotated array.

    • Use binary search to find the pivot point where the array is rotated.

    • Divide the array into two subarrays and perform binary search on the appropriate subarray.

    • Handle the cases where the target element is at the pivot point or not present in the array.

  • Answered by AI
  • Q2. Kth largest element in an array.
  • Ans. 

    Find the Kth largest element in an array.

    • Sort the array in descending order and return the element at index K-1.

    • Use a max heap to find the Kth largest element efficiently.

    • Implement a quickselect algorithm to find the Kth largest element in linear time.

  • Answered by AI
  • Q3. Reverse a linked list in group of n element.
  • Ans. 

    Reverse a linked list in groups of n elements.

    • Divide the linked list into groups of n elements.

    • Reverse each group individually.

    • Connect the reversed groups to form the final linked list.

    • Handle cases where the number of elements is not a multiple of n.

    • Example: 1->2->3->4->5->6->7->8, n=3 -> 3->2->1->6->5->4->8->7

  • Answered by AI
  • Q4. Median of two sorted array.
  • Ans. 

    Find the median of two sorted arrays.

    • Merge the two arrays into one sorted array and find the median.

    • Use binary search to find the median in O(log(min(m, n))) time complexity.

    • Handle edge cases like empty arrays or arrays of different lengths.

  • Answered by AI
  • Q5. It was a DP question. In a matrix, I have to count number of paths from (0, 0) to (m, n) while crossing through some indexes were not allowed.
  • Ans. 

    Count number of paths from (0, 0) to (m, n) in a matrix while crossing through some indexes were not allowed.

    • Use dynamic programming to solve the problem

    • Create a 2D array to store the number of paths

    • Traverse the matrix and update the array based on the allowed paths

    • Return the value at the last index of the array

  • Answered by AI

Interview Preparation Tips

Round: Technical Interview
Experience: Interviewer was mainly focused on problem solving skill.

College Name: KIIT University

Skills evaluated in this interview

I appeared for an interview in Aug 2017.

Interview Preparation Tips

Round: Test
Experience: Platform: Hackerearth
20 MCQs with negative marking, topics included OS, DS-Algo, Networking.
2 Programming Problems.
Duration: 1 hour 30 minutes
Total Questions: 22

Round: Technical Interview
Experience: 3 DS-Algo problems were asked. Made to written codes on paper.

Round: Technical Interview
Experience: 2 DS-Algo problems were asked. Made to written codes on paper.
Few OS questions were also asked.

Skills: Data Structures and Algorithms, Operating Systems
College Name: IIT (BHU)

Interview Questionnaire 

6 Questions

  • Q1. Given a Linked list , print yes if it is palindrome else print no
  • Q2. Print the level order traversal of the binary tree in the spiral form
  • Ans. 

    Print the level order traversal of binary tree in spiral form

    • Perform level order traversal of the binary tree

    • Alternate the direction of traversal for each level

    • Use a stack to reverse the order of nodes in each level

    • Print the nodes in the order of traversal

  • Answered by AI
  • Q3. Maximum of all subarrays of size k(Expected Time Complexity O(N). Input : arr[] = {1, 2, 3, 1, 4, 5, 2, 3, 6} k = 3 Output : 3 3 4 5 5 5 6
  • Ans. 

    Find the maximum element in each subarray of size k in a given array.

    • Iterate through the array from index 0 to n-k.

    • For each subarray of size k, find the maximum element.

    • Store the maximum elements in a separate array.

    • Return the array of maximum elements.

  • Answered by AI
  • Q4. Given Two sorted array of size size n each. Find the Kth largest element in these two array (Expected Time Complexity Log(n))
  • Ans. 

    To find the Kth largest element in two sorted arrays, we can use the merge step of merge sort algorithm.

    • Merge the two arrays into a single sorted array using a modified merge sort algorithm.

    • Return the Kth element from the merged array.

  • Answered by AI
  • Q5. Website having several web-pages. And also there are lot many user who are accessing the web-site. say user 1 has access pattern : x->y->z->a->b->c->d->e->f user 2 has access pattern : z->a->b->c->d user 3...
  • Q6. Given two array , one of size m+n and contains m element and other position are empty , 2nd array is of size n and contains n element. both array are sorted , now merge the second array to first one such t...
  • Ans. 

    Merge two sorted arrays into one sorted array with expected time complexity of (m+n).

    • Use a two-pointer approach to compare elements from both arrays and merge them into the first array.

    • Start comparing elements from the end of both arrays and place the larger element at the end of the first array.

    • Continue this process until all elements from the second array are merged into the first array.

  • Answered by AI

Interview Preparation Tips

Round: Test
Duration: 90 minutes

Skills: Algorithm , OS, DBMS, data structure
College Name: NIT BHOPAL

Skills evaluated in this interview

Interview Preparation Tips

Round: Test
Experience: Coding questions were comparatively easy. There were three questions.1. Given a string map each character of which to the corresponding digit in a 10 digit mobile phone keypad.2. Don't remember, will add when it comes to my mind.3. Don't remember, will add when it comes to my mind.

Skills: Coding ability, Complete knowledge of working of internet.,
College Name: IIT Bombay

Interview Preparation Tips

Round: Test
Experience: Just 1 online test



Round - I (90 mins)



Online Test conducted @ HackerRank



a. M.C.Qs (Operating System + Aptitude + C Programming Language + Object Oriented Programming)



b. Programming (2 coding questions)The Online Exam started off after a brief Presentation on Amazon.





The MCQs were largely based on Operating System, Data structures and Algorithms, OOP concepts, C language and Aptitude.



Coding Questions



1. Determine whether a Linked List is a palindrome or not.



2. Given few sets of intervals print out the the entire intervals without overlapping , if they overlap then combine them into one.



Eg: Input : (5,7) (1 , 6) (2 ,4) (10 ,14) (8,9)



Output : (1,7) (8,9) (10,14)



Advice: Must solve at least 1 coding question to have a good chance for selection into the next round
Tips: CGPA holds importance because it is basic eligibility criteria for written test and then secondly it increases odds in your favor of your selection more than those with lower CGPA with same interview performance. Prepare a good resume



1. Prioritize your content



2. Put the most important information first (Academic Projects + Internship)



3. Proofread it twice



Advice : Do your best and leave the rest to god

Round: Test
Experience: Round II

2 Coding questions

1. Classic 2-sum problem

2. Given numbers a, b as the seeds for the Fibonacci sequence determine if a third number 'k' is a part of that sequence or not. (Tricky)
Total Questions: 2

Round: Other Interview
Experience: Round III
1. Tell me about yourself
2. Project + Internship Discussion
3. Compress a given string "aabbbccc" to "a2b3c3"
constraint: inplace compression, no extra space to be used
assumption : output size will not exceed input size

Round: Technical Interview
Experience: Round IV
1. Internship Project Discussion (30 mins)
2. Find the largest count of 0s in a row in a matrix of 0s and 1s sorted in an ascending order row-wise.
3. Replicate a tree with random pointers inplace

Round: Other Interview
Experience: Round V
1. Question related to graphs involving concepts of Depth and Height of a tree. (Took a lot of time in solving it ! but finally recognized the pattern)
2. Maximum size square sub-matrix with all 1s
3. Find the median of an infinite series of integers
4. Find the most popular Google searches. (solved it using Trie and Max-Heaps)
2 more questions but can't remember them.Finally after waiting for more than 9 hours the results were announced and I was selected
Tips: Be cool and always ask the interviewer questions at the end of the interview. Explain the interviewer your progress while solving the question so that you both are on the same page + its easier for him to understand. Behavioral and H.R.
Tips
1. Speak clearly and with confidence
2. Always prepare yourself beforehand for some common questions like:
a. Tell me about yourself.
b. Why should I hire you?
c. What are your strengths and weaknesses? (give examples)
d. What is your Dream Company?

General Tips: They judge you purely on the basis of your knowledge and performance during the face to face interviews. The extra curricular activities are not given much consideration as Amazon focuses its recruitment procedure purely on the basis of your Technical Knowledge. Prepare a good resume
1. Prioritize your content
2. Put the most important information first (Academic Projects + Internship)
3. Proofread it twice
College Name: NIT JAIPUR

Facebook Interview FAQs

How many rounds are there in Facebook Associate Software Engineer interview?
Facebook interview process usually has 1 rounds. The most common rounds in the Facebook interview process are Technical.

Tell us how to improve this page.

Interview Questions from Similar Companies

Amazon Interview Questions
4.0
 • 5.1k Interviews
Swiggy Interview Questions
3.8
 • 434 Interviews
Udaan Interview Questions
3.9
 • 334 Interviews
Meesho Interview Questions
3.7
 • 333 Interviews
Zomato Interview Questions
3.7
 • 312 Interviews
Zepto Interview Questions
3.5
 • 240 Interviews
Myntra Interview Questions
4.0
 • 217 Interviews
Blinkit Interview Questions
3.7
 • 189 Interviews
Naukri Interview Questions
4.0
 • 187 Interviews
BlackBuck Interview Questions
3.8
 • 180 Interviews
View all
Software Engineer
79 salaries
unlock blur

₹52 L/yr - ₹102 L/yr

Software Developer
22 salaries
unlock blur

₹23.9 L/yr - ₹50.6 L/yr

Senior Software Engineer
20 salaries
unlock blur

₹27.3 L/yr - ₹72.5 L/yr

Data Scientist
19 salaries
unlock blur

₹68.3 L/yr - ₹139.5 L/yr

Manager
15 salaries
unlock blur

₹21 L/yr - ₹80 L/yr

Explore more salaries
Compare Facebook with

Google

4.4
Compare

Amazon

4.0
Compare

Apple

4.3
Compare

eBay

3.8
Compare
Did you find this page helpful?
Yes No
write
Share an Interview