Linkedin Interview Questions and Answers

Last updated on Feb 06, 2023
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Linkedin Interview Questions

LinkedIn is one of the most popular corporate portals in the world. This website has employers as well as employees from almost all corporate sectors from all over the world. LinkedIn is an American business as well as a job searching website that also has its smartphone application. LinkedIn was launched on the 5th of May, 2003. This is a social network for the corporate world. People can search for a job, create contacts that help them in getting better job opportunities and also can stay updated with most of the things going around in their professional network. LinkedIn was acquired by Microsoft in December 2016 and it is a complete subsidiary of it since then. People who want to get a job at LinkedIn need to know about some LinkedIn interview questions in spite of directly going in knowing that they are not fully prepared. Below are some LinkedIn interview questions and answers that will help the applicants to get a job with the biggest professional network website in the world:

Most Frequently Asked Linkedin Interview Questions

Here in this article, we will be listing frequently asked Linkedin Interview Questions and Answers with the belief that they will be helpful for you to gain higher marks. Also, to let you know that this article has been written under the guidance of industry professionals and covered all the current competencies.

Q1. What do you know about multi-threading?

Multithreading is that Java feature, which enables concurrent execution for two or more than two parts of one program for the maximum utilization of the CPU. Each and every single part of one such program comes to be known as a thread. Thus, threads are the light-weight processes that too within one process.

Q2. Write a program to find the square root of a number.

int sqrt(int x) {
if (x == 0)
return x;
int left = 1, right = x;
while (true) {
int mid = (left + right) / 2;
if (mid > x / mid)
right = mid - 1;
else if (mid + 1 > x / (mid + 1)) //mid < x / mid
return mid;
left = mid + 1;

Q3. What is the difference between syntax and fatal errors?

One error is some kind of mistake. One can say that an error is one condition of possessing incorrect or inaccurate knowledge. Or the error can be defined as an unexpected, or an invalid state of a program from which recovery is not possible.

syntax errors

These parse errors or syntax errors occur when there is some syntax mistake in coding the script, and the output comes to be Parse errors or syntax errors. Such types of errors stop the continuous execution of the required script. There can be several reasons behind the occurrence of such errors in the PHP language. Some common reasons are mentioned below.

The common reason for syntax errors:

  • Unclosed quotes
  • Unclosed braces
  • Missing or Extra parentheses
  • Missing semicolon

Fatal Errors

These are caused if PHP is able to comprehend what the user has written, but, what the user is asking PHP to do simply can not be done. These Fatal errors end the continuous execution for the script. When the user tries to access functions that are not defined, then what is received as output is the fatal error.

Q4. State the features of LinkedIn.

There are many attractive and useful features on LinkedIn and they are updated time-to-time. The features of LinkedIn have played a very important role in its popularity. Some important features of LinkedIn are stated below:

  • Hiding Connections
  • Exporting Connections
  • Deleting, Managing and Editing Skills and Endorsements
  • Creating LinkedIn Showcase Pages
  • Hiding user identity when they view other profiles
  • Saving the searches
  • Adding media to user profiles
  • Sending messages without making a connection
Q5. Explain the flowchart?

The flowchart is a graphical or a pictorial representation of the algorithm using different symbols, and shapes, plus arrows to demonstrate the process or one program. With the algorithms, one can understand any program easily. The major purpose of the flowchart is analyzing different processes. Various standard graphics can be applied in the flowchart as mentioned below:

  • Terminal Box - Start / End
  • Process / Instruction
  • Connector / Arrow
Q6. What do you know about the LinkedIn Influencers’ Program?

The LinkedIn Influencers’ program was launched in the year 2012 in the month of October. This program features global leaders, these global leaders share their professional knowledge and insights with the members of LinkedIn. By records, there are more than 750 influencers on the platform and approximately 74% of these influencers are male. The influencer program is invite-only and has leaders from various industries. People like Bill Gates are also one of their influencers.

Q7. Write a program to check the closest K nodes to target in BST?

vector closestKValues(TreeNode* root, double target, int k) {
vector res;
inorder(root, target, k, res);
return res;

void inorder(TreeNode *root, double target, int k, vector &res) {
if (!root) return;
inorder(root->left, target, k, res);
if (res.size() < k) res.push_back(root->val);
else if (abs(root->val - target) < abs(res[0] - target)) {
} else return;
inorder(root->right, target, k, res);


Q8. State some Applications of LinkedIn.

Some Applications of LinkedIn are listed below:

  • It can be used to build and enhance personal brand and goodwill
  • Locating and establishing expertise
  • Can be used for professional networking
  • Can be used to send private or group email messages to contacts
  • Can be used to find jobs
  • For sourcing and hiring employees
  • For the purpose of blogging and updating
  • For joining the public groups and participating in them
  • To share the knowledge
  • To keep track of where the professional contacts that can currently work, this can be also used to replace business cards
Q9. What is the use of API in LinkedIn developer documents?

The basic use of API in developer documents of LinkedIn is stated below:

  • For signing into external services by using Linkedin
  • To add items or new attributes to profiles of users
  • For sharing articles and items on the timeline of the user’s
Q10. Write a program to print “LinkedIn” if a number is divisible by 4 and 6, Linked if it is divisible by 4 and “in” if it is divisible by 6.

def print_linked_in(number):
if number%4 == 0 and number%6 == 0:
elif number%4 == 0:
elif number%6 == 0:


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