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LinkedIn Interview Questions, Process, and Tips

Updated 21 Jan 2025

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Interview Questions & Answers

user image Anonymous

posted on 12 May 2015

Interview Questionnaire 

15 Questions

  • Q1. Design a complete system for “Traffic enforcement camera” (-----Traffic_enforcement_camera)
  • Q2. He asked to tell as many as test cases possible for the scenario
  • Q3. What type of testings should be performed on this system?
  • Q4. My first project as it was related to Image processing then some basic stuff about system calls and Unix commands
  • Q5. Do you know about any software testing framework?
  • Ans. 

    Yes, there are several software testing frameworks available.

    • Software testing frameworks provide a structured approach to testing software applications.

    • They offer a set of guidelines, tools, and libraries to automate and streamline the testing process.

    • Some popular software testing frameworks include Selenium, JUnit, TestNG, and Cucumber.

    • Selenium is widely used for web application testing, while JUnit and TestNG are com...

  • Answered by AI
  • Q6. What is the best protocol to store images?
  • Ans. 

    The best protocol to store images is JPEG.

    • JPEG is a widely used image compression format.

    • It provides a good balance between image quality and file size.

    • JPEG supports millions of colors and is suitable for photographs and complex images.

    • Other protocols like PNG and GIF have their own advantages but may not be as efficient for storing images.

  • Answered by AI
  • Q7. How JSON(JavaScript Object Notation) works?
  • Ans. 

    JSON is a lightweight data interchange format used to store and transmit data in a readable format.

    • JSON uses key-value pairs to represent data.

    • It is language-independent and easy to understand.

    • JSON data types include strings, numbers, booleans, arrays, and objects.

    • Example: {"name": "John", "age": 25}

    • JSON can be used with various programming languages and APIs.

  • Answered by AI
  • Q8. Which database to use and when ?
  • Q9. One liner command to kill all process in the system which were using JAVA?
  • Ans. 

    Kill all processes using JAVA with one liner command.

    • Use the 'pkill' command with the '-f' option to match the process name

    • Combine it with the 'pgrep' command to get the process IDs of JAVA processes

    • Use a loop to kill each process by its ID

  • Answered by AI
  • Q10. Difference between TOP and PS commands? why TOP is called TOP?
  • Ans. 

    TOP and PS are commands used in Unix-like operating systems to display information about running processes. TOP is called TOP because it shows the top processes consuming system resources.

    • TOP is an interactive command that continuously updates the process list, while PS displays a snapshot of the current processes.

    • TOP provides real-time information about CPU usage, memory usage, and other system statistics, while PS pr...

  • Answered by AI
  • Q11. Explain XSS attacks and how to prevent it? and the same for sqli? Any experience with them?
  • Q12. Algorithmic : -----/ gives as many solutions you can? Then ..tell about their time and space complexity?
  • Q13. Explain your final year project?
  • Q14. Why should I hire you , not others?
  • Q15. Experiences with automated and manual testings ?
  • Ans. 

    Automated testing involves using software tools to execute tests, while manual testing is performed by humans.

    • Automated testing is faster and more efficient than manual testing.

    • Automated testing can be used to perform repetitive tasks and regression testing.

    • Manual testing allows for exploratory testing and human judgment.

    • Automated testing requires initial setup and maintenance of test scripts.

    • Both types of testing have

  • Answered by AI

Interview Preparation Tips

Round: Online round
Experience: Online round (1 hour on hackerrank):1. There are ‘n’ ticket windows in the railway station, ith window has ai tickets available. Price of a ticket is equal to the number of tickets remaining in that window at that time. When ‘m’ tickets have been sold, what’s the maximum amount of money the railway station can earn?

e.g.

INPUT: n=2, m=4

a1=2 , a2=5

OUTPUT: 14(2nd window sold 4 tickets so 5+4+3+2).2. You are given a 2-D matrix with M rows and N columns.You are initially positioned at (0,0) which is the top-left cell in the array. You are allowed to move either right or downwards. The array is filled with 1’s and 0’s. A 1 indicates that you can move through that cell, a 0 indicates that you cannot move through that cell. Return the number of paths from top-left cell to bottom-right cell.(i.e. (0,0)to(M-1,N-1)). Since answer can be large thus you have to return ans%(10^9+7).Constraints: Best time and space complexity were required to cover all the test cases for both questions.

Round: TECHNICAL INTERVIEW
Experience: 1. Given a string of characters , parse the numeric values in it ,add all of them and return the result.

Lot of discussion regarding the various test cases around this question(e.g, handing of -ve numbers , decimals , overflow etc).

Main concentration was just to get as many as test cases possible and an efficient solution as well.

And Some common question like why you coding in C++? Advantages of OOP?

Round: TECHNICAL INTERVIEW
Experience: Again one coding question to be done on shared screen.

1. Given an array of positive integers, find all possible triangle triplets that can be formed from this array.

eg: 9 8 10 7

ans: 9 8 10, 9 8 7, 9 10 7, 7 8 10

Note : array not sorted, there is no limit on the array length.Again the main concentration was to work around all possible test cases and an efficient solution as well.

College Name: NA

Skills evaluated in this interview

Interview Preparation Tips

General Tips: It might help in general to try to become a better developer at all times. One way to get good at it is to really enjoy what you do!Do random projects, use linux, Read Hacker News (-----/)  daily and wear hippie computer t-shirts (:-P) - Interviewers really LOVE talking about these, especially HR rounds (my HR interviewer was also a programmer).
College Name: NIT SURATHKAL

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (170)

Interview Preparation Tips

Round: Test
Experience: Three questions of increasing difficulty level. The first one was on string manipulation, the second was based on the iterative version of the merge sort algorithm and the last one on dynamic programming.
Total Questions: 3

Round: Other Interview
Experience: Eight students were selected for this stage which consisted of three separate interviews. The first one was on algorithms and programming, the second on system design and the third was HR. In the algorithms and programming interview I was asked two questions. The interviewer asked me to first explain the proposed algorithm and then I was expected to write the code on a white board they had provided. Three weeks after the interviews the selected candidates were informed through the concerned placement coordinator.

General Tips: Don't panic, the interviewers don't expect you to come up with the optimum result directly and they will give you enough time to refine your solution.
Skill Tips: No special preparation is required. Just make sure that you have understood the fundamentals
of Data Structures and Algorithms well.
College Name: NIT SURATHKAL

Top LinkedIn Software Developer Interview Questions and Answers

Q1. Optimal BST Problem Statement You are given a sorted array representing keys of a BST and an array of frequency counts showing how often each key is searched. Your task is to construct a binary search tree (BST) to minimize the total cost o... read more
Add answer

Software Developer Interview Questions asked at other Companies

Q1. Maximum Subarray Sum Problem Statement Given an array of integers, determine the maximum possible sum of any contiguous subarray within the array. Example: Input: array = [34, -50, 42, 14, -5, 86] Output: 137 Explanation: The maximum sum is... read more
View answer (38)

Interview Preparation Tips

Round: CODING ROUND
Experience: In the coding round there were 3 questions to be solved in about 3 hrs.

Round: HR Interview
Experience: Expect the usual crazy questions like "Why LinkedIn?" and if you are already placed, be ready to give a proper justification for "Why LinkedIn and not XYZ?" so on. Be cool, you need not be accurate. Be well prepared with your resume and expect questions from them.
Tips: For the interview, just be confident and have a good resume ready with you.

Round: Other Interview
Experience: Coding Interview:
Simple coding questions. Make sure you first explain the logic to them and then you may be asked to write the code for it on the board using any language of your choice. Syntax is not a big deal, but don't make any logical errors. They are very friendly and may suggest certain solutions of their own. Make sure you can grasp them quickly. Find faults in your own code before they find it. Always try to give the best optimal solution. In case you are unable to do so then suggest possible improvements.

Round: Other Interview
Experience: Design Interview:
Some people may find this round a bit uneasy. But this round tests how good you are at designing solutions to problems. Most of the candidates were asked to build an online gaming system. And then they keep adding extra constraints and ideas and see if you can integrate them to your design. Database knowledge may be tested. They may also ask questions pertaining to you projects listed in your resume.

General Tips: An updated LinkedIn account with decent connections. ;)
Skill Tips: Be very strong with your coding ability. Whenever you code, do follow some standard procedures and make the code look simple and structured. Whenever you solve a coding question make sure you answer it completely for all the test cases. Partial results will only indicate that there is something wrong with the logic. Try to solve a complete question rather than multiple questions with partial results.
College Name: NIT SURATHKAL

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (170)

LinkedIn interview questions for popular designations

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Interview Questionnaire 

4 Questions

  • Q1. You are given a large array of n bits. Each bit is initially 0. You perform several operations of the type
  • Ans. 

    Solution to performing operations on a large array of bits.

    • Use bitwise operators to perform operations on individual bits

    • Use a loop to iterate through the array and perform the operations

    • Ensure that the array is large enough to accommodate all the bits

    • Consider using a data structure like a bitset for efficient bit manipulation

  • Answered by AI
  • Q2. Questions on Network programming
  • Q3. Questions on array,heap and binary trees
  • Q4. Round was both HR+Technical

Interview Preparation Tips

Round: Test
Experience: Questions can be found here:

-----/
Tips: Try to solve all 3.
Duration: 60 minutes
Total Questions: 3

Round: Technical Interview
Experience: First discuss the solution and then paper-code it.
Tips: Try to code without mistakes.

Round: Technical Interview
Experience: First, I was asked to discuss my project based on networking and then I was given a question on network programming
Tips: Pay attention on discussion

Round: Technical Interview
Experience: Provide the optimised solution and code it without any mistakes.

Round: HR Interview
Experience: Why linkedin?
What changes will you make in 6 months?
Internship project: Discussion and lot of common questions on that.
Basic Questions of C++ and Java

Skills: Data Structure, Core courses understanding, Algorithms
College Name: IIT GUWHATI

Skills evaluated in this interview

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (169)

Get interview-ready with Top LinkedIn Interview Questions

LinkedIn Interview FAQs

How many rounds are there in LinkedIn interview?
LinkedIn interview process usually has 2-3 rounds. The most common rounds in the LinkedIn interview process are Technical, One-on-one Round and Coding Test.
What are the top questions asked in LinkedIn interview?

Some of the top questions asked at the LinkedIn interview -

  1. Difference between TOP and PS commands? why TOP is called T...read more
  2. One liner command to kill all process in the system which were using JA...read more
  3. Explain XSS attacks and how to prevent it? and the same for sqli? Any experienc...read more
How long is the LinkedIn interview process?

The duration of LinkedIn interview process can vary, but typically it takes about less than 2 weeks to complete.

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