Zomato Interview Experience (1 years Experience)

Round 1:
1. Basics of Elasticsearch and how did you use it in your current company project, as i had mentioned it in my skills.

2.What is a singleton class in Java ? Write code to implement the same.

3.Implement shuffle feature for a music player. (Hint: https://www.geeksforgeeks.org/shuffle-a-given-array-using-fisher-yates-shuffle-algorithm/)

Only pseudo code

4. Island problem (Refer: https://www.geeksforgeeks.org/find-number-of-islands/)

Write working code

Round 2:
Q1. Remove only 1 element in an array and tell how many sorted sequences are possible for the array?

Input: [1 2 3 4 5 4]

Output:[1 2 3 4 4 ], [1 2 3 4 5] i.e 2

Input: [1 2 3 4 2]

Output: [1 2 3 4] i.e 1

Q2. Design pattern question (Circuit Breaker) -> If an api is making external call to system x, y, z then how will you monitor it’s response and return the same, consider(within 1 min api is failing 10 times).How will you detect the same? (Implement only backend part)

Not selected for Round 3.

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