Palo Alto Networks Interview Guide

Showing 3 of 28 questions

Ranking

A question's ranking corresponds to how commonly it's asked by Palo Alto Networks. The higher the ranking, the more likely you'll encounter it in a Palo Alto Networks interview.

Question

Frequency

Difficulty

Longest Common Prefix

Find the longest string that is a prefix of all strings in a given array. If no common prefix exists, return an empty string.

ArraysStrings

Very likely

If you have a Palo Alto Networks interview, it's very likely that you will get this question

Easy

#1. Longest Common Prefix

Easy

Find the longest string that is a prefix of all strings in a given array. If no common prefix exists, return an empty string.

ArraysStrings

This question is very likely to be asked in your Palo Alto Networks interview

LRU Cache

Design a data structure that acts as a Least Recently Used (LRU) cache. Implement methods to get and put key-value pairs, evicting the least recently used entry when the cache is full.

Linked ListsArraysDynamic Programming

Very likely

If you have a Palo Alto Networks interview, it's very likely that you will get this question

Medium

#2. LRU Cache

Medium

Design a data structure that acts as a Least Recently Used (LRU) cache. Implement methods to get and put key-value pairs, evicting the least recently used entry when the cache is full.

Linked ListsArraysDynamic Programming

This question is very likely to be asked in your Palo Alto Networks interview

Find the Longest Equal Subarray

Given an array and a maximum allowed difference, find the longest subarray where the most frequent element appears at least the same number of times as all other elements combined. You can change elements by at most the allowed difference amount to achieve this.

ArraysTwo PointersSliding Windows

Very likely

If you have a Palo Alto Networks interview, it's very likely that you will get this question

Medium

#3. Find the Longest Equal Subarray

Medium

ArraysTwo PointersSliding Windows

This question is very likely to be asked in your Palo Alto Networks interview

Explore Interview QuestionsTaro 75 Google Interview Questions Meta Interview Questions Amazon Interview Questions Apple Interview Questions Netflix Interview Questions

Explore Interview ExperiencesOpenAI Interview Experiences Anthropic Interview Experiences Perplexity Interview Experiences Windsurf Interview Experiences Mistral AI Interview Experiences

ProductBecome An Affiliate Great Discussions Perks Topics

CompanyBlog Privacy Policy Terms & Conditions Support