Cohesity Senior Software Engineer Interview Questions and Answers

Q1. Write polyfill for array map
Add your answer

Q1. Get minimum from stream. Query based.
Add your answer
Q2. Minimum number of platforms for trains. Arrival n departure time is given.
Add your answer

Q1. Design Instagram feed
Ans. 
Designing Instagram feed involves displaying user's photos and videos in a visually appealing and user-friendly manner.
• Display user's posts in a grid layout with images/videos and captions

• Allow users to like, comment, and share posts

• Implement infinite scrolling to load more posts as user scrolls down

• Include a search bar to search for specific users or hashtags
Answered by AI
Add your answer

A code to identify errors and write Junit. Optimise the code as well.

Q1. Stacks using queue
Ans. 
Implementing a stack using two queues
• Use two queues to simulate a stack

• Push operation: Enqueue the element to queue 1

• Pop operation: Dequeue all elements from queue 1 to queue 2, dequeue the last element from queue 1, then swap the queues

• Top operation: Return the front element of queue 1

• Example: Push 1, 2, 3 - Queue 1: [1, 2, 3], Queue 2: []

• Example: Pop - Queue 1: [1, 2], Queue 2: [3]
Answered by AI
Add your answer
Q2. BFS and Knapsack problem, previous project experience
Add your answer

Full stack question with java and angular and sql

Case study on project

Q1. Mimic Dataframe Merge
Ans. 
Implement a function to mimic the functionality of merging two DataFrames in Python.
• Create a function that takes two DataFrames as input.

• Merge the two DataFrames based on a common column or index.

• Handle different types of joins like inner, outer, left, and right joins.

• Return the merged DataFrame as output.
Answered by AI
Add your answer
Q2. Improve above case by case
Add your answer

1 hour - Find longest palindromic substring

Q1. Design and code a zoo management system.
Ans. 
A zoo management system to track animals, enclosures, staff, and visitor information.
• Create classes for animals, enclosures, staff, and visitors

• Implement functions for adding, updating, and deleting records

• Include features for scheduling feeding times, cleaning enclosures, and managing staff shifts
Answered by AI
Add your answer

Standard DSA questions

Q1. Standard HR stuff.
Add your answer

Q1. LRU Implementation
Ans. 
LRU (Least Recently Used) is a cache eviction policy where the least recently accessed items are removed first.
• LRU cache stores key-value pairs with a maximum capacity.

• When a new key-value pair is added, if the cache is full, the least recently used item is removed.

• When a key is accessed, it is moved to the front of the cache to indicate it was recently used.
Answered by AI
Add your answer
Q2. Sell and buy stock
Add your answer