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Zolo SDE Interview Questions and Answers
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1 interview found
Anonymous
I applied via Campus Placement and was interviewed in Sep 2024. There were 4 interview rounds.
Easy coding question
(1 Question)
- Q1. Find number whose frequency is greater than n/2
- Ans.
Use Boyer-Moore Majority Vote Algorithm to find number with frequency greater than n/2.
Iterate through array, keeping track of candidate and count
If count becomes 0, update candidate to current element
Increment count if current element is candidate, decrement otherwise
Verify candidate's frequency at the end to ensure it is greater than n/2
(1 Question)
- Q1. Project Discussion
(1 Question)
- Q1. Difference between HTTP and HTTPS
- Ans.
HTTP is unsecured protocol while HTTPS is secured protocol using SSL/TLS encryption.
HTTP stands for Hypertext Transfer Protocol, while HTTPS stands for Hypertext Transfer Protocol Secure.
HTTP operates on port 80, while HTTPS operates on port 443.
HTTPS encrypts the data transferred between the client and the server using SSL/TLS, while HTTP does not provide encryption.
HTTPS provides authentication of the website's ident...
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(2 Questions)
- Q1. What is state props drilling
- Ans.
State props drilling is the process of passing down props from a parent component to a deeply nested child component.
Involves passing props through multiple levels of components
Can lead to prop drilling if not managed properly
Can be avoided by using context or Redux for state management
- Q2. Javascript tic tac toe
Skills evaluated in this interview
(1 Question)
- Q1. Write system design for cab booking system
Vaibhav Garg
DSA - 3 Coding Questions
(1 Question)
- Q1. Machine coding - low level design
I applied via Approached by Company and was interviewed in May 2024. There was 1 interview round.
Had online coding round as part of screening. Questions were easy and made it through but didn't hear back form the recruiter
(1 Question)
- Q1. Predict the winner leetcode problem
- Ans.
The winner leetcode problem involves finding the candidate with the most votes in an election scenario.
Iterate through the list of candidates and keep track of their votes
Return the candidate with the highest number of votes
Example: Input - ['Alice', 'Bob', 'Alice', 'Charlie', 'Bob'], Output - 'Alice'
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Skills evaluated in this interview
It had 9 uqestions , one problem solving , one SQL , one API and 6 mcq
Easy assignment , if you hav eOOps knowledge you can do it
Shashirith Sonu
I applied via campus placement at Indian Institute of Management (IIM), Indore and was interviewed before Oct 2022. There were 2 interview rounds.
(3 Questions)
- Q1. DESIGN CALENDER
- Q2. DESIGN FACEBOOK
- Ans.
Design a social networking platform with features like user profiles, news feed, messaging, and photo sharing.
Create user profiles with customizable information and privacy settings
Implement a news feed algorithm to display relevant content to users
Include messaging functionality for private communication between users
Allow users to share photos and videos on their profiles and in posts
- Q3. LLD ROUND ON BOTH THIS QUESTIONS
(2 Questions)
- Q1. WHY DO YOU WANT TO JOIN
- Q2. ARE YOU FREE FOR THIS ROLE
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