Principal Consultant Interview Questions


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Principal Product Marketing Manager was asked...5 July 2013

If John Locke from lost was running for president of the island what would be his campaign slogan.

6 Answers

"Don't ever tell us what we can't do. Ever."

Learn how to walk again before we can run!

But John Locke is dead. It's 'Smoky' that's taking his form. Smoky is already the president of the island especially after the death of Jacob. Smoky's slogan is 'tirihihik tirihihik, tirihihik tirihihik, (you know the sound that the smoke monster does). Less

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Common algorithm question

3 Answers

I solved this problem correctly and explained what I did , also during writing each line I was explaining why I am writing it. But still no next round . Very useless .... I suggest do not spend your energy for this dead old company. Less

Could you please share the leetcode difficulty of the problems asked during the interview? Less

The key in these questions is to cover the fundamentals, and be ready for the back-and-forth with the interviewer. Might be worth doing a mock interview with one of the Oracle or ex-Oracle Principal Software Engineer experts on Prepfully? They give real-world practice and guidance, which is pretty helpful. Less


Given a large document and a short pattern consisting of a few words (eg. W1 W2 W3), find the shortest string that has all the words in any order (for eg. W2 foo bar dog W1 cat W3 -- is a valid pattern)

3 Answers

This is a classic minimal window problem described in detail here - Less

import java.util.*; class Untitled { public static void main(String[] args) { String[] strs = {"a","b","d","e","x","b","z","s","x","c","e","c","d","b"}; String[] pattern = {"b","z","x"}; getMin(strs, pattern); } private static void getMin(String[] strs, String[] pattern){ //initialize the set HashSet set = new HashSet(); for(int i = 0; i map = new HashMap(); for(head = 0; head map, String[] strs, int position){ if (!map.containsKey(strs[position])) return true; if (map.get(strs[position]) <= 1) return false; return true; } } Less

Could you please explain this??

Northrop Grumman

What are you interested in working on?

3 Answers

Metal , welding it to make it support things with force is absolutely amazing!!

Cyber Security analyst auditor investigator

Safety, i’m a very conscientious safety person, I have heard of Northrop Grumman many times before and I respect them as a company. Roy is close to my home. Less


Code for some rest services where a user can see & buy the applicable games.

3 Answers

If anyone needs the code which I wrote, then comment & I will share the code. As this code will give you basic setup at least, so that you can concentrate to develop your innovative ideas. Less

Just don't believe on the positive Glassdoor reviews for a company which has recently started. Less

Don't believe on the positive reviews directly, these companies fake such positive feedback to trap the talent & may be at low price. Less

Palo Alto Networks

Coding in each round, Firewall, networking questions

3 Answers

LC Medium or Hard.

LC Medium or Hard?

Through questions like this, interviewers are mostly trying to test your skillset (and its relevance to the role) as robustly as possible, so be prepared for multiple offshoots and followups. It could be a useful exercise to do mocks with friends or colleagues in Palo Alto Networks to get a real sense of what the interview is actually like. Alternatively Prepfully has a ton of Palo Alto Networks Principal Software Engineer experts who provide mock interviews for a pretty reasonable amount. Less


Design round: Design an api rate limiter Coding round: simple manipulation of arrays and maps Craft round: Design an ML Labelling system

3 Answers

There will be many documents in a document database. The labelling system must use machine learning to label into different categories. Eg help desk, system document, technical. There will a small train dataset available but not entirely reliable. Less

The correct answer would be to use a combination of weak learning methods and gradually incorporate feedback and make it stronger Less

APi rate limiter was really simple, just look at uber/ratelimit on git and thats it. Rest was farily easy Less


analytical- there are 50 floors in a building. You are given two balls which can break at a certain f trheight . Give a solution where you can determine the critical height at which a ball breaks. the solution should be optimised to give the least no. of tries for the worst case scenario(i.e where the ball breaks on the 50th floor only)

3 Answers

first ball --- throw it every floor from the iteration the second balls breaks second ball --- throw it every 3 or 4 or 5 floor ... When the second ball breaks, you know there are only 3 or 4 or 5 floors to check ... O (log n) complexity ... best case O(1) Less

i'll go with binary search procedure..since it stands a better chance

think over !!

Land Transport Authority

Standard questions like why you choose the organisation and why you wish to leave your current post etc.

3 Answers

They offered me within 2 weeks after my 2 nd interview.

Wish to seek new avenues to expand my career.

How long did they took to get back to you after the second interview?


Quelle est votre origine ethnique ?

3 Answers

Quelle est la pertinence de cette question dans le cadre de cet entretien d'embauche ? Less

Ce genre de questions est interdit par la loi

Moi à votre place, je quitte sur le coup sans regret et je passe au suivant.

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