Optum Intern Interview Questions and Answers

Numerical reasoning test.

Q1. What are the benefits of breastfeeding in mother and baby?
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Q2. Wat are the rights of medication administration?
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Q3. What are the benefits of KMC?
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Q4. What is neonatal jaundice and how you will prevent ?
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Q5. What do you mean by fasting sugar ?
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Q1. Do your best to crack
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Q2. What are your qualifications
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Q1. Tell me about yourself
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Q1. Tell me about yourself
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Q2. Why did you choose Healthcare industry
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Round duration - 60 minutes
Round difficulty - Easy

There were 30 MCQ questions and 2 coding problems. The MCQs were medium-level questions. Coding problems were fairly easy.

Q1. Program to check the validity of a Password
Ninjas are trying to hack a system of a terrorist organization so that they can know where they will be going to attack next. But to hack the system and to get a...read more
Ans. 
1.) Maintained 4 flags as "false" for checking the capital letter, small letter, special character and number.
2.) Iterated the string and checking every character in it for the above 4 flags.
3.) If either of the flags were false, returned 'false'
4.) If the length of string was less than 'K', returned 'false'
5.) Returned 'true'
Answered by CodingNinjas
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Q2. Reverse Linked List
Given a singly linked list of integers. Your task is to return the head of the reversed linked list.
For example:
The given linked list is 1 -> 2 -> 3 -> 4-> NULL. Then th...read more
Ans. 
1.) Maintained a 'prev' pointer and 'temp' pointer.
2.) Iterated the list and saved the next pointer of the current node as temp and assigned current->next = prev and then, prev = current, this is the general approach for reversing the list.
3.) Returned prev
Answered by CodingNinjas
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Round duration - 50 minutes
Round difficulty - Medium

The interview was scheduled by the placement cell in the evening. The interviewer seemed to be an experienced developer.
He asked me general background questions like what are you interested most in? what are your technical interests? etc.
He then asked me about my project. Explained him well on that front and he seemed satisfied. He asked me to find the Lowest Common Ancestor of a given Binary Search Tree. I solved it in around 20-30 minutes and he finally asked me to write the solution on paper. He asked some practical OOPs problems for a while and I answered correctly but the explanations could be more thorough.

Q1. LCA of binary tree
You have been given a Binary Tree of distinct integers and two nodes ‘X’ and ‘Y’. You are supposed to return the LCA (Lowest Common Ancestor) of ‘X’ and ‘Y’.
The LCA of ‘X’ and ‘Y’ in ...read more
Ans. 
This problem was alien to me at that time. But, I was familiar with BST. Solved the problems using 'parent' pointers first.
Then, came up with the following recursive idea.

function signature: LCA(Node* root , int n1, int n2)

1.) If the current root is NULL, return NULL.
2.) If root->val> n1 && root->val > n2:
return LCA(root->left , n1 , n2)
3.) If root->val < n1 && root->val < n2
r...read more
Answered by CodingNinjas
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Round duration - 30 minutes
Round difficulty - Easy

The interview was some 30 minutes after the technical round. The HR asked me general questions like my hobbies, technical and non-technical things in my resume, my interests, etc. The overall communication was very friendly.

Q1. General Questions
What do you do to relieve stress? Tell me something outside of your academics.
Ans. 
Tip 1 : I listen to music and mostly take a walk for some fresh air in the evening/morning.
Tip 2 : I am a team person and believe that the whole is greater than the sum of parts. I am interested in painting and writing and am currently a coordinator at the literary committee of the college.
Answered by CodingNinjas
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