McAfee interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
McAfee
3 rounds | 18 Coding
problems
Rejected
Interview preparation journey
Journey
The journey from the first round to the last round was too smooth. We got every piece of information in our mail. It was a pool campus drive that was conducted on an e-litmus platform. There were three rounds: An aptitude test on the e-litmus platform and two online technical interviews on Microsoft Teams.
Application story
I participated in the pool campus drive that was conducted on an e-litmus platform. There were 3 rounds in total: An aptitude test, which was conducted on the e-litmus platform, and two online technical interviews that were conducted on Microsoft Teams. Each round was an elimination round.
Why selected/rejected for the role?
I was rejected for the role in the last round of interviews as I couldn't meet the expectation of answers the interviewer was looking for. Also, there was a strong competition among candidates, so I believe the ones who got selected might be more talented than me.
Preparation
Duration: 4 months
Topics: Data Structures and Algorithms, OOPS, Database, Python, System Design
Tip 1: Gain extensive knowledge in any one programming language.
Tip 2: Should have a brief knowledge of databases
Tip 3: Have advanced problem-solving skills
Application process
Where: Campus
Eligibility: 8 CGPA
Tip 1: Have strong projects on your resume
Tip 2: Have some extra-ordinary achievements or certifications
Interview rounds
01
Round
Medium
Online Coding Interview
Duration90 mins
Interview date9 Oct 2021
Coding problem10
This round was conducted at 10 a.m. on the e-litmus platform. This test was 90 minutes long and had 50 aptitude and technical questions.
1. Puzzle
Three times, the first of three consecutive odd integers is three more than twice the third. The third integer is:
Problem approach
Tip 1: Practice aptitude questions available online
Tip 2: Solve the practice questions on pen and paper
2. Puzzle
A two-digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is:
Problem approach
Tip 1: Practice aptitude questions available online
Tip 2: Solve the practice questions on pen and paper
3. Puzzle
A man buys Rs. 20 shares paying 9% dividend. The man wants to have an interest of 12% on his money. The market value of each share is:
Problem approach
Tip 1: Practice aptitude questions available online
Tip 2: Solve the practice questions on pen and paper
4. Puzzle
Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?
Problem approach
Tip 1: Practice aptitude questions available online
Tip 2: Solve the practice questions on pen and paper
5. Puzzle
39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work?
Problem approach
Tip 1: Practice aptitude questions available online
Tip 2: Solve the practice questions on pen and paper
6. Puzzle
A watch that gains 5 seconds in 3 minutes was set right at 7 a.m. In the afternoon of the same day, when the watch indicated a quarter past 4 o'clock, the true time is:
Problem approach
Tip 1: Practice aptitude questions available online
Tip 2: Solve the practice questions on pen and paper
7. SQL MCQ
To give a temporary name to a table, or a column in a table for more readability, what is used? (Learn)
Problem approach
Tip 1: Practice the SQL queries
Tip 2: Study the database in detail
8. OS MCQ
Which system call returns the process identifier of a terminated child? (Learn)
Problem approach
Tip 1: Study the operating system
Tip 2: Read the question carefully
9. DBMS MCQ
Mutual exclusion can be provided by the __________ (Learn)
Problem approach
Tip 1: Study the operating system
Tip 2: Read the question carefully
10. DBMS MCQ
Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record? (Learn)
Problem approach
Tip 1: Practice the SQL queries
Tip 2: Study the database in detail
02
Round
Medium
Video Call
Duration35 mins
Interview date26 Oct 2021
Coding problem3
This round was conducted in the afternoon on Microsoft Teams. It was 35 minutes long and had questions about data structures, coding, and databases.
2. Armstrong Number
Easy
15m average time
85% success
0/40
Asked in companies
You are given an integer ‘NUM’ . Your task is to find out whether this number is an Armstrong number or not.
A k-digit number ‘NUM’ is an Armstrong number if and only if the k-th power of each digit sums to ‘NUM’.
Example
153 = 1^3 + 5^3 + 3^3.
Therefore 153 is an Armstrong number.
Problem approach
Step 1: Obtain the number to be checked.
Step 2: Count the number of digits in the given number.
Step 3: Initialize a variable armstrong_sum to 0.
Step 4: Extract each digit from the number using modulo (%) and integer division (//).
Step 5: Raise each digit to the power of the total number of digits and add it to armstrong_sum.
Step 6: Repeat steps 4 and 5 until all the digits have been processed.
Step 7: Compare armstrong_sum with the original number.
Step 8: If armstrong_sum is equal to the original number, it is an Armstrong number. Otherwise, it is not.
03
Round
Hard
Video Call
Duration60 mins
Interview date27 Oct 2021
Coding problem5
This round was conducted in the afternoon at Microsoft Teams. It was 60 minutes long. This was a technical round and was mostly based on problem-solving and coding skills. I got rejected after this round only.
1. LCA Of Binary Tree
Problem approach
Step 1: Start from the root of the binary tree.
Step 2: If the root is one of the given nodes, then it is the LCA.
Step 3: Recursively search for the LCA in the left and right subtrees of the root.
Step 4: If both nodes are found in the left subtree, recursively find the LCA in the left subtree.
Step 5: If both nodes are found in the right subtree, recursively find the LCA in the right subtree.
Step 6: If one node is found in the left subtree and the other in the right subtree, then the current root is the LCA.
Step 7: Return the LCA.
2. Valid Parentheses
Easy
10m average time
80% success
0/40
Asked in companies
You're given a string 'S' consisting of "{", "}", "(", ")", "[" and "]" .
Return true if the given string 'S' is balanced, else return false.
For example:
'S' = "{}()".
There is always an opening brace before a closing brace i.e. '{' before '}', '(' before ').
So the 'S' is Balanced.
Problem approach
Step 1: I solved the problem using a stack
Step 2: Interviewer asked me to solve without the stack
Step 3: Further, I wrote the solution without stack but took a bit longer time
3. SQL Question
What are the different types of JOINS in SQL? (Learn)
Problem approach
Tip 1: Read types of JOINS in SQL
Tip 2: Answer confidently
4. SQL Question
Write an SQL query to create a view that has names in descending order. (Learn)
Problem approach
Tip 1: Practice SQL queries
Tip 2: Study views in the database
5. Project based question
What is the most challenging project on which you have worked till now?
Problem approach
Tip 1: Explain your last year project or internship project, if any
Tip 2: Speak with full confidence
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?
Choose another skill to practice
Similar interview experiences
SDE - 1
3 rounds | 2 problems
Interviewed by McAfee
Rejected
957 views
0 comments
0 upvotes
Technical Analyst-Intern
3 rounds | 5 problems
Interviewed by McAfee
Selected 0 views
0 comments
0 upvotes
SDE - 1
3 rounds | 9 problems
Interviewed by Salesforce
Selected 1609 views
0 comments
0 upvotes
System Engineer
2 rounds | 2 problems
Interviewed by Tata Consultancy Services (TCS)
Selected 1315 views
0 comments
0 upvotes
Companies with similar interview experiences
SDE - 1
5 rounds | 12 problems
Interviewed by Amazon
Selected 109330 views
24 comments
0 upvotes
SDE - 1
4 rounds | 5 problems
Interviewed by Microsoft
Selected 53406 views
5 comments
0 upvotes
SDE - 1
3 rounds | 7 problems
Interviewed by Amazon
Selected 32803 views
6 comments
0 upvotes