MoEngage UI Developer Interview Questions and Answers

Aptitude round of 1hr followed by communication round 30mins

• Q1. Tell me about yourself
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• Q2. Tell me about the projects
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• Q1. Useless interview
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• Q1. Median of a stream
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• Q1. Longest Valid Parentheses
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• Q2. Find the maximum number in the subarrays of length k.
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• Q1. Spiral Matrix Question
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Was asked to write the program for a puzzle related to bucket and rings. Here, I was to be played with computer such that I will always win. The win will be decided if I am the last to enter the rings in buckets. I was given number of buckets, etc.

A total time of 1 hour 30 minutes was given for this round, and it was held on the HackerEarth platform.

20 Aptitude questions- logical questions, questions on the diagram, time and train, direction, efficient statement, Venn diagram, few examples of the type of questions:

1. If 2 workers can paint 3 rooms in 4 hours, how many rooms can 1 worker paint in 5 hours

2. If there are 21 blue, 15 black and 17 red ball in a sack, how many minimum ball would you have to remove to ensure that you have removed at least 2 blue ball? (multiple questions of this type can be there)

3. The sum of the 5 numbers in AP is 80. The difference between each is 5. Smallest number?

4. A and B are standing in a row. A is 5th from the left, and B is 13th from the right. After they exchange their positions, A is 11th from left. How many people are in the row?

20 questions on CSE Fundamentals- Questions based on OS - Time Scheduling, Stacks, Find output and error in Java Code, Cpp code and C Code, DBMS, Time complexity, etc.

2 questions based on DSA, out of which you will have to attempt any 1.

For example, the Question was based on the array - in an abandoned city, you are given an array of gold coins, and you have to maximise the number of gold coins while moving in the city and traverse a minimum number of elements in the array.

• Q1. 1. ARRAYS, STRINGS AND SORTING: Bubble sort, Complexity of all sorting algorithms.
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• Q2. 2. Find the first non repeating character in a string
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• Q3. 3. Remove duplicates from an array
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• Q4. 4. An array and 2 variables x and y are given, print y sub arrays with x elements.
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• Q5. 5. Explain the function pointer.
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• Q6. 6. Explain copy constructor
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• Q7. 7. Deep copy / Shallow copy
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• Q8. 8. Characteristics of static function
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• Q9. 9. What are Abstract classes
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• Q1. 1. Explain Trees and Binary Search Trees.
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• Q2. 2. Difference between Linked List and Tree (where what should be used).
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• Q3. 3. A real-life example of Tree.
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• Q4. 4. Some in-depth questions from standard topics like Linked List, trees, etc. will also be asked.
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• Q1. If a rival company tries to use your code against us what will you do?
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• Q1. Given 9 ball all of which weigh the same except for one, what is the minimum of weighings necessary to find the ball weighs more (or less)?
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• Q1. 1. What are your goals for the next 1 year, your 5-year goals?
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• Q2. 2. What are the recent challenges you faced in life?
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• Q3. 3. What are your hobbies in life besides coding?
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• Q4. 4. Why do you want to join this company?
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• Q5. 5. What work does our company do?
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Asked me to write code on paper for count inversions

Zeta interview at codeblock. 3 dsa questions The level of difficulty was medium