Amazon

Amazon Interview Questions and Tips

Showing 21 - 30 of 37 interviews

21

Amazon interview

7.6k views
FresherSelected
Application
I was interviewed on-campus at BIT Mesra for Amazon
Interview Process
ONLINE ROUND Technical Interview Technical Interview Technical Interview Technical Interview
Round 1

ONLINE ROUND

Interview Experience
1. 20 MCQ
2. 2 coding questions
• Find the diameter of a tree
• Print all anagrams pair in separate line
Round 2

Technical Interview

Interview Experience
Find the next larger element in a BST, given key might not be in the BST. O(logn) time and O(1) space.Delete all nodes on a DLL whose data is a multiple of 5. O(n) time
Round 3

Technical Interview

Interview Questions
  • Question 1: Given n-ary tree, print the nodes in level-order zig-zag manner. O(n) time
  • Question 2: Given a BST find the number of pair of nodes which sum upto a given value. O(n) time, O(1) space.
  • Question 3: Given a 2D plane and n points, find the line which passes through maximum number of lines.
  • Question 4: If a/b is recurring like 10/3 print 10/3 as 3.(3), 16/6 as 2.(6)
Round 4

Technical Interview

Interview Questions
  • Question 1: Explain caching, implement LRU caching
  • Question 2: Explain working of DNS, implement domain search in DNS.
  • Question 3: What is hashing. Implement domain search using hashing.
  • Question 4: Given a string of alphabet of at most 5 characters. Write a function which returns a unique number for each string with O(1) space.
  • Question 5: Explain working of virtual function.
  • Question 6: There is pointer of base class pointing to derived class. Explain the working with respect to the pointer, if this pointer calls the virtual function of base class.
  • Question 7: How does write head take a value from process buffer and writes on a particular address (Explanation of address bus and register needed).
Round 5

Technical Interview

Interview Questions
  • Question 1: Clone a linked list having an arbit pointer.
  • Question 2: You are given deque(), enque(), isEmpty() function for queue, implement push(), pop(), min() functions of stack. O(1) time was required for min().
  • Question 3: Convert a binary tree to a DLL such that a next node for DLL is selected in a top down order in zig-zag manner. O(n) space was allowed, but not O(2n).
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22

Amazon N/A interview

4.8k views
FresherSelected
Application
I was interviewed on-campus at N/A for N/A role at Amazon
Interview Process
Test Problem Statement Technical Interview Technical Interview HR Interview
Round 1

Test

Test Sections
  • Section 1: General Aptitude
  • Section 2: Technical Aptitude
Round 2

Problem Statement

Round 3

Technical Interview

Interview Questions
  • Question 1: Given a number. Find next max with same digits.
  • Question 2: Given an array of numbers. Find pair with minimum difference.
Round 4

Technical Interview

Interview Questions
  • Question 1: Given operations: insertion, deletion, searching and random number displaying. Find best datastructure to use.
  • Question 2: Given a stack. You can push or pop elements any number of times. Print minimum value from current content of stack.
  • Question 3: Write an algorithm: Implement a queue using stacks.
Round 5

HR Interview

Interview Questions
  • Question 1: What is testing?
  • Question 2: What is test case?
  • Question 3: Tell test cases for testing alarm in mobile phone.
  • Question 4: What is integration testing?
  • Question 5: What is compatibility testing?
  • Question 6: How and for what case you will do above mentioned testings to alarm?
General Tips
My friends got placed in amazon I got all this information from them.For amazon it is crucial that you be very strong in data structures & algorithms, 90% of the questions are from that. Next for the aptitude 19 were selected from 250 students who wrote. Some of my friends were able to clear the aptitude by performing normal for the general aptitude question(answering 1/2 the question correct) and by simple write print statements for the given programming, that is writing print statement for each test case(its worth a shot). Overall the aptitude is easy stuff.
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23

Amazon Software engineer interview

271 views
Rajesh PSFresherSelected
Application
I was interviewed on-campus at Sri ganesh college of engineering and technology for Software engineer role at Amazon
Interview Process
Test Behavioural Interview Technical Interview
Round 1

Test

No. of Questions
40 questions
Test Sections
  • Section 1: Aptitude round
Interview Experience
Aptitude was quite easy they just asked us basic questions from Math,logical reasoning and english
Interview Tips
Just think well before u do..
Round 2

Behavioural Interview

Interview Experience
It was face to face .. the interviewee asked questions from our resume... Since I m from computer science background they asked some technical questions..
Interview Tips
Beware filling ur resume.. they will ask every stuff that you have in resume
Round 3

Technical Interview

Interview Experience
Discussion about my project that i vr done in my final year.they asked me what was my role in my project
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24

Amazon Decision scientist interview

897 views
ROSHIN JACOB JOHNSON Me12b166FresherSelected
Application
I was interviewed on-campus at IIT Madras for Decision scientist role at Amazon
Interview Process
Test Other Interview HR Interview Case Study Interview
Round 1

Test

No. of Questions
28 questions
Interview Experience
Quant questions and basic programming
Round 2

Other Interview

Interview Questions
  • Question 1: Few simple puzzles and guestimates
Round 3

HR Interview

Interview Questions
  • Question 1: Most challenging problem you have solved or tried solving.
Round 4

Case Study Interview

Interview Experience
Simple question. Just keep on telling what comes to your mind.
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25

Amazon Software developer interview

6.3k views
AnonymousFresherSelected
Application
I was interviewed on-campus for Software developer role at Amazon
Interview Process
Test Technical Interview
Round 1

Test

Test Sections
  • Section 1: Multiple Choise
  • Section 2: Coding
Interview Experience
Coding questions were comparatively easy. There were three questions.1. Given a string map each character of which to the corresponding digit in a 10 digit mobile phone keypad.2. Don't remember, will add when it comes to my mind.3. Don't remember, will add when it comes to my mind.
Round 2

Technical Interview

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26

Amazon Intern internship interview

6.2k views
Himani Anand1FresherSelected
Application
I was interviewed on-campus at IIM Lucknow for Intern role at Amazon
Interview Process
Test Technical Interview
Round 1

Test

Duration
120 Minutes
No. of Questions
22 questions
Test Sections
  • Section 1: computer science + aptitude
  • Section 2: programming
Interview Experience
Interview Tips
Round 2

Technical Interview

Interview Questions
  • Question 1: Binary Tree concepts
Interview Experience
Interview Tips
Skills

Skills Tested

Skill Tips
General Tips
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27

Amazon interview

6.3k views
R ASHWIN SATHYAFresherSelected
Application
I was interviewed on-campus at NIT Warangal for Amazon
Interview Process
Test Technical Interview HR Interview
Round 1

Test

Duration
95 Minutes
Test Sections
  • Section 1: Written Test
Interview Experience
The aptitude test basically consisted of questions from Data Structures and some other simple algorithms and also on Object Oriented Analysis. The aptitude test was tricky (having negative markings +2/-1 scheme). To cross this test speed and skill are essential.

The next test was a coding exams there were three questions 
1) Given a linked list, link the odd nodes followed by the even nodes in place.
2) Given a dictionary of words find words that are anagrams of each other.
3) Given a binary tree and a node print that node's path from root.
Round 2

Technical Interview

Interview Experience
There were 4 rounds of interviews...
the details are as follows
Interview 1 - This interview was basically DS based interview and certain concepts of networking were touched. I
told them that i am interested in data structures and cryptography so most of the questions came from those areas only.
Interview 2 - Was again technical. The interviewer asked me on Data Structures and a Dynamic Programming problem and some other puzzles to solve.
Interview 3 - This was technical but they evaluated the design skills. Asked me on ER diagrams, class diagrams and
database design and system design and some basic questions from OS. 
Interview 4 - This was also a technical interview mainly on problem solving and DS design (how would you design a DS to handle this situation and so on).
Round 3

HR Interview

Interview Experience
There was no HR interview as such. They were asking questions in tech interviews such as tell me about yourself and so on.
General Tips
Data Structures, OOPS and OS. Solve a variety of problems. All the best!!!
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28

Amazon Systems engineer interview

247 views
AnonymousExperiencedSelected
Interview Process
Technical Interview Technical Interview Technical Interview
Round 1

Technical Interview

Interview Experience
They checked for the technical logic building capacity. They will ask questions related to LINUX.
Interview Tips
You should be very comfortable with linux advanced commands.
Round 2

Technical Interview

Interview Experience
They checked for the technical logic building capacity. They will ask questions related to LINUX.
Interview Tips
You should be very comfortable with linux advanced commands.
Round 3

Technical Interview

Interview Experience
They checked for the technical logic building capacity. They will ask questions related to LINUX.
Interview Tips
You should be very comfortable with linux advanced commands.
Round 4

Technical Interview

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29

Amazon Software developer and tester interview

6.1k views
Chaithanya B SFresherSelected
Application
I was interviewed on-campus at NIT Surathkal for Software developer and tester role at Amazon
Interview Process
Test
Round 1

Test

Test Sections
  • Section 1: ONLINE TEST
Interview Experience
Screening by an online round containing programming and multiple choice questions. Selected candidates (25 approx.) had four technical interviews wherein approx. 5 candidates were eliminated in each round. 4 students were offered a job.
Interview Tips
Online Programming Contests in spoj,Codechef,topcoder,Codeforces, Hackerrank,Hackerearth, Project Euler.
General Tips
Make sure the interviewer knows what you're thinking as you solve the problem. Don't just come up with the final answer. Prepare on algorithms and Data structures.

It was very exhausting as the interviews went up to 3 a.m in the morning. It was compensated by very interesting and new questions.
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30

Amazon Software developer interview

5k views
ExperiencedSelected
Application
I Applied for job through Personal Contacts for Software developer role at Amazon
Interview Process
Technical Interview Technical Interview
Round 1

Technical Interview

Interview Questions
  • Question 1: Design the most optimal data structures for an LRU cache.
  • Question 2: Convert a sorted array to balanced binary search tree.
  • Question 3: Reverse a singly linked list in groups of k in­place.
  • Question 4: Design the most optimal data structure for storing a word and its meaning. Note that a word could have multiple meanings.
Round 2

Technical Interview

Interview Questions
  • Question 1: Write a recursive routine to calculate a ^ n.
  • Question 2: Design the most optimal data structure for a never ending stream of numbers. It should be optimized for insertion, deletion, searching, finding kth largest and kth smallest.
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