McAfee interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
McAfee
3 rounds | 2 Coding
problems
Rejected
Interview preparation journey
Preparation
Duration: 2 months
Topics: Data Structures, CN, OOPS, DBMS, Algorithms
Tip 1 : Go deeply and thoroughly the JAVA topics
Tip 2 : Be thorough with the projects
Tip 3 : Practice leetcode
Application process
Where: Campus
Eligibility: >7 CGPA
Tip 1 : Keep it simple and in one order
Tip 2 : Highlight your projects
Interview rounds
01
Round
Easy
Online Coding Interview
Duration60 Minutes
Interview date7 Jul 2021
Coding problem0
It was early in the morning and at home with video on.
02
Round
Medium
Face to Face
Duration60 mins
Interview date7 Jul 2021
Coding problem1
It was in afternoon after online coding round. I had questions on OS (Memory management, Virtual memory)
Java - Abstraction and polymorphism
DBMS - JOIN
1. Reverse String
Moderate
0/80
Asked in companies
You are given a string ‘S’. You are also given ‘M’ integers in an array ‘A’. You perform ‘M’ operations on this string. The operations are given in an array ‘A’ of size ‘M’.
You perform the operations in the order they appear in the array ‘A’. In the ‘i’th operation, you reverse the substring of ‘S’ from the position ‘A[i]’ to ‘len(S)’ - ‘A[i]’ - 1 (0 based).
Your task is to find the string after performing all the operations.
Example :
‘S’ = “aabcd”, ‘M’ = 2, ‘A’ = [0, 1]
After 1st operation i.e, reversing from [0, 4], ‘S’ = “dcbaa”.
After 2nd operation i.e, reversing from [1, 3], ‘S’ = “dabca”.
Hence, the answer is “dabca”.
Problem approach
Optimizing the solution from worst to start should be the way
03
Round
Hard
Face to Face
Duration60 mins
Interview date7 Jul 2021
Coding problem1
Questions were based on :
Asynchronous database access ( related to AJAX )
Database queries
Multithreading , semaphores and mutex
1. Power of Two
Easy
15m average time
85% success
0/40
Asked in companies
You have been given an integer 'N'.
Your task is to return true if it is a power of two. Otherwise, return false.
An integer 'N' is a power of two, if it can be expressed as 2 ^ 'K' where 'K' is an integer.
For example:
'N' = 4,
4 can be represented as 2^2. So, 4 is the power of two, and hence true is our answer.
Problem approach
I couldn't solve this question properly
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
What is 3 + 2 * 4 based on operator precedence?
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