Palo Alto Networks

Principal Engineer Interview Experience - Bengaluru, Karnataka

January 1, 2022

Negative ExperienceNo Offer

Process

Screening process where they called for a Zoom. Two simple questions.

Interviewer had difficulty explaining the problem and told something, but expected something else. It looks like the manager prepared to take the interview.

Questions

Array and linked list related. The question was simple, but the way it was articulated and clarified was horrible.

Interview Statistics

The following metrics were computed from 1 interview experience for the Palo Alto Networks Principal Engineer role in Bengaluru, Karnataka.

Success Rate

Pass Rate

Palo Alto Networks's interview process for their Principal Engineer roles in Bengaluru, Karnataka is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive0%

Neutral0%

Negative100%

Candidates reported having very negative feelings for Palo Alto Networks's Principal Engineer interview process in Bengaluru, Karnataka.

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