Aws engineer Interview Questions

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Capital One
DevOps Data Engineer (AWS) was asked...25 March 2017

Are you willing to work on 3AM Production Support without hesitation ?

3 Answers

Yes

Yea

Yes

Amazon

Hardest Q was: Here's a binary tree: find the longest path within it. So, find a path between any two leaf nodes, where the path is the longest.

3 Answers

class Solution{ int ans[] = new int[1]; //O(n) public int efficientDia(TreeNode root) { if(root == null) return 0; int left = efficientDia(root.left); int right = efficientDia(root.right); ans[0] = Math.max(ans[0], 1 + left+ right); return 1+ Math.max(left, right); } //O(n^2) public int getDiameter(TreeNode root) { if(root == null) return 0; int leftHeight = getHeight(root.left); int rightHeight = getHeight(root.right); if(ans[0] < 1 + leftHeight + rightHeight) { ans[0] = 1 + leftHeight + rightHeight; } return Math.max(getDiameter(root.left), getDiameter(root.right)); } Less

int ans[] = new int[1]; //O(n) public int efficientDia(TreeNode root) { if(root == null) return 0; int left = efficientDia(root.left); int right = efficientDia(root.right); ans[0] = Math.max(ans[0], 1 + left+ right); return 1+ Math.max(left, right); } //O(n^2) public int getDiameter(TreeNode root) { if(root == null) return 0; int leftHeight = getHeight(root.left); int rightHeight = getHeight(root.right); if(ans[0] < 1 + leftHeight + rightHeight) { ans[0] = 1 + leftHeight + rightHeight; } return Math.max(getDiameter(root.left), getDiameter(root.right)); } private int getHeight(TreeNode root) { // TODO Auto-generated method stub if(root == null) return 0; return Math.max(getHeight(root.left), getHeight(root.right))+1; } Less

Indians at all companies always ask tree questions, it makes them giggle inside. I know, because I'm half indian and have interviewed people... tee hee hee Less

Amazon

What happens when you delete the Sysvol folder?

1 Answers

Never delete the Sysvol File since it a critical file that regulate replication among domain controllers. It also manage File Replication Service to share files and Scripts as well as Group Policy to get applied in the domain. Once deleted please refer to your next backup DC to restore your PDC or the deleted DC's Sysvol. Less

Strategic Solutions

how do you build your stack from cloudformtion

1 Answers

how do you orchestrate using kubenetes

BIP

come avresti disegnato il seguente DB data le richieste dell'esercizio a casa?

1 Answers

DB relazionale con PKs e foreign key etc.

NBCUniversal

Code the FizzBuzz algorithm

1 Answers

Created an algorithm using if/else statements for returning either "fizz", "buzz" or "fizzbuzz". Less

Navaratan Technologies

About VPC Peering Auto scaling Concept EMR S3 GIT Docker

1 Answers

About my Experience which already come across

TO THE NEW

Syntax of Linux and all

1 Answers

And profit loss questions , speed distance time questions

Amazon

Find the longest palindrome in a string

1 Answers

So there were 5 interviews in total? Did you have a lunch interview?

Amazon

Behavioural questions and one session for technical questions

1 Answers

I made a mistake of using the same answer in different questions

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