# Software Test Interview Questions

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### Software Development Engineer In Test at Amazon.com

Jan 27, 2012
 “First explain what a tree, then binary tree, then a binary search tree is. Now implement a function that verifies whether a binary tree is a valid binary search tree.”

### Software Development Engineer In Test (SDET) at Microsoft

May 13, 2013
 “Given a binary tree, how would you set the keys/values of all the nodes and their child pointers to null. No language restriction. Do it iteratively in O(N) time with O(1) space complexity where N...”

### Software Engineer Test at Google

Nov 20, 2009
 “Onsite Interview 2 a): check whether a number is the power of 2 b) Skyline silhouette puzzle . c) Discussion on uses of hash-tables and trees ? d) Few general questions on Work and...”

### Software Development Engineer In Test || at Amazon.com

Mar 14, 2012
 “Write a method to decide if the given binary tree is a binary search tree or not.”

### Software Development Engineer In Test (SDET) at Webtrends

Sep 26, 2012
 “I was asked a pretty straight forward brain teaser during my last phone interview, which they said they don't normally do, but because I put that I was a logical problem solver on my resume they...”

### Software Design Engineer In Test at Amazon.com

Jul 28, 2012
 “find if 2 strings are anagrams”

### Software Development Engineer In Test (SDET) at Microsoft

Jun 18, 2011
 “In a BST write a program to find 2 nodes x and y such that X+y=k”

### Software Development Engineer In Test (SDET) at Microsoft

Feb 19, 2013
 “Given a triangle, determine if its a scalene, equilateral, isosceles or neither... required knowledge of triangle properties, I learnt these properties about two decades ago so ofcourse I was fuzzy...”

### Software Engineer In Test at Google

Jun 4, 2013
 “Given a 2D rectangular matrix of boolean values, write a function which returns whether or not the matrix is the same when rotated 180 degrees. Additionally verify that every boolean true is...”

### Software Development Engineer In Test (SDET) at Microsoft

Nov 11, 2013
 “given two linked lists with a digit in each node, add the two linked lists together. the result must be a linked list with one digit in each node. use only one iteration of the two input lists.”
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