McAfee Interview Questions

Note: ensure you read the disclaimer on the previous page reading the accuracy and sourcing of these problems.

Course Prerequisites

Here's a classic challenge that comes up in real life interviews surprisingly often. Interviewers like it as a way to assess your ability to find the right data structure for a non obvious and non trivial use case. The prompt is as follows: you're a university student currently trying to plan th...

Difficulty: 8/10

Remove Duplicates From Array

Given an array, return another array with just the ordered unique elements from the given array. In other words, you're removing any duplicates. Note: Order needs to be preserved, so no sorting should be done. And the order should be maintained with the first occurrence of the element in the given...

Difficulty: 4/10

Identical Trees

Can you write a function to see if two binary trees are identical? 1 1 2 3 2 3 The above two trees share the same structure in terms of shape and location of each parent nodes' children. Additionally, each corresponding nodes at every posit...

Difficulty: 4/10

Find First Non-Repeating Character

You're given a string of random alphanumerical characters with a length between 0 and 1000 . Write a method to return the first character in the string that does not repeat itself later on. So if we had a string input of "asdfsdafdasfjdfsafnnunl'" , we can see there are multiple letters that...

Difficulty: 4/10

Sum Digits Until One

We're provided a positive integer num . Can you write a method to repeatedly add all of its digits until the result has only one digit? Here's an example: if the input was 49 , we'd go through the following steps: start with 49 4 9 13 since the previous addition was 13, move ont...

Difficulty: 4/10

Merge Intervals

This is a classic interview question that is used in _a lot_ in technical interviews, frequently in the form of a calendar or meeting management application. As such, we'll also assume the same use case, as it's easier to visualize. Suppose we're given a few arrays, like 1, 4 , 2, 5 , 7,...

Difficulty: 5/10

Contiguous Subarray Sum

Given an array of numbers, return true if there is a subarray that sums up to a certain number n . A subarray is a contiguous subset of the array. For example the subarray of 1,2,3,4,5 is 1,2,3 or 3,4,5 or 2,3,4 etc. js const arr 1, 2, 3 , sum 5 subarraySum arr, sum...

Difficulty: 4/10

Reverse Only Alphabetical

Reversing Only Alphabetical Characters in a String ! Visual Diagram https: storage.googleapis.com algodailyrandomassets curriculum easy strings reverse only alphabetical.png The Problem Statement You are provided with a string that's a blend of alphabetic and non alphabetic characters. T...

Difficulty: 3/10

Serialize and Deserialize a Binary Tree

Given a binary tree representation, can you come up with a method to serialize the tree and then deserialize it to get the exact same tree? What is Serialization and Deserialization? Serialization is a process that converts a data structure to a suitable format that can be stored either ...

Difficulty: 8/10

Understanding Big O Notation and Algorithmic Complexity

Algorithm Complexity and Big O Notation **Objective**: In this lesson, we'll cover the topics of Algorithm Complexity and Big O Notation . By the end, you should: Be familiar with these terms and what they mean. See their use in practice. Use these tools to measure how "good" an algor...

Difficulty: 5/10

Optimizing API Performance

Introduction to API Performance Optimization API performance optimization plays a crucial role in ensuring the smooth functioning of an application. Optimizing the performance of an API not only enhances the user experience but also improves the overall system performance. As a senior engineer ...

Difficulty: 5/10

File Handling and I/O Operations

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Difficulty: 5/10

Interview Reports

225 Information Technology (IT) Interview Questions | McAfee Blogs...

Whether you’re interviewing a candidate for an IT position or a position in charge of deploying IT security technology like a CASB, or you’re the

McAfee Interview Questions | Glassdoor...

McAfee interview details: 428 interview questions and 387 interview reviews posted anonymously by McAfee interview candidates.

McAfee Interview Questions | CareerCup ...

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