Palo Alto Networks

Software Engineering Intern Interview Experience - Palo Alto, California

August 1, 2021

Positive ExperienceNo Offer

Process

An initial behavioral interview was followed by two to three technical (coding) interviews. The technical interviews all related to data structures and algorithms. The questions were reasonable and not extremely difficult.

Questions

Write an algorithm that, given an array possibly containing duplicates, returns an array of the unique elements.

Interview Statistics

The following metrics were computed from 1 interview experience for the Palo Alto Networks Software Engineering Intern role in Palo Alto, California.

Success Rate

Pass Rate

Palo Alto Networks's interview process for their Software Engineering Intern roles in Palo Alto, California is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive100%

Neutral0%

Negative0%

Candidates reported having very good feelings for Palo Alto Networks's Software Engineering Intern interview process in Palo Alto, California.

Palo Alto Networks Interview Questions

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

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

Find the Longest Equal Subarray

Medium

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