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Amazon System Software Engineer Interview Questions and Answers
Amazon System Software Engineer Interview Experiences
1 interview found
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I applied via campus placement at Jawaharlal Nehru Technological University (JNTU) and was interviewed before May 2023. There were 2 interview rounds.
1 coding algo question and MCQ
(2 Questions)
- Q1. Kth element from last in linked list
- Ans.
To find the Kth element from the end in a linked list, we can use the two-pointer technique.
Use two pointers, one moving K steps ahead of the other
When the first pointer reaches the end, the second pointer will be at the Kth element from the end
Handle edge cases like K being larger than the length of the linked list
- Q2. Search in a row wise column wise sorted 2D array
- Ans.
Search for a target value in a row-wise and column-wise sorted 2D array.
Start from the top right corner of the array
If the target value is less than the current element, move left
If the target value is greater than the current element, move down
Repeat until the target value is found or the boundaries of the array are reached
Interview Preparation Tips
- Leetcode
Skills evaluated in this interview
Interview questions from similar companies
I applied via Campus Placement and was interviewed in Oct 2024. There were 3 interview rounds.
Test contains 26 questions for me 13 are java based 13 are c++ based
(2 Questions)
- Q1. Indexing in dbms
- Ans.
Indexing in DBMS is a technique to improve the performance of queries by creating a data structure that allows for faster retrieval of data.
Indexes are created on columns in a database table to speed up the retrieval of rows that match a certain condition.
Types of indexes include clustered, non-clustered, unique, and composite indexes.
Examples of indexing techniques include B-tree, hash, and bitmap indexes.
Indexing can...
- Q2. Find whether two strings are or not anagrams
- Ans.
Check if two strings are anagrams by comparing the sorted characters in each string.
Sort the characters in both strings and compare if they are equal.
Ignore spaces and punctuation when comparing the strings.
Example: 'listen' and 'silent' are anagrams.
Example: 'hello' and 'world' are not anagrams.
(2 Questions)
- Q1. Inorder traversal without recursion
- Ans.
Use a stack to simulate the recursive inorder traversal process
Create an empty stack to store nodes
Start with the root node and push it onto the stack
While the stack is not empty, keep traversing left and pushing nodes onto the stack
Once you reach a leaf node, pop it from the stack, print its value, and move to its right child
Repeat the process until all nodes have been visited
- Q2. How to make a class final
- Ans.
To make a class final, use the 'final' keyword in the class declaration.
Use the 'final' keyword before the 'class' keyword in the class declaration
A final class cannot be subclassed or extended
Final classes are often used for utility classes or classes that should not be modified
Skills evaluated in this interview
Junior Software Engineer Interview Questions & Answers
Metric Stream Infotech
Anonymous
posted on 9 Oct 2024
I applied via Recruitment Consulltant and was interviewed in Sep 2024. There were 3 interview rounds.
Java coding questions
(3 Questions)
- Q1. Explain Java oops concepts?
- Ans.
Java oops concepts include inheritance, encapsulation, polymorphism, and abstraction.
Inheritance allows a class to inherit properties and behavior from another class.
Encapsulation hides the internal state of an object and restricts access to it.
Polymorphism allows objects to be treated as instances of their parent class.
Abstraction hides the implementation details and only shows the necessary features.
- Q2. What is collections?
- Ans.
Collections in programming refer to data structures that allow you to store and manipulate groups of objects.
Collections provide a way to organize and manage data efficiently
Examples include lists, sets, maps, queues, and stacks
Collections can be used to perform operations like adding, removing, and searching for elements
- Q3. Write a code to reverse number?
- Ans.
Code to reverse a number in JavaScript
Convert the number to a string to easily manipulate each digit
Use array methods like split, reverse, and join to reverse the number
Convert the reversed string back to a number before returning
(2 Questions)
- Q1. Introduction about yourself?
- Ans.
I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.
Graduated with a degree in Computer Science
Proficient in programming languages like Java, Python, and C++
Completed internships at tech companies like Google and Microsoft
Enthusiastic about learning new technologies and working in a team environment
- Q2. Do you know about the company?
- Ans.
The company is a leading software development firm specializing in creating innovative solutions for various industries.
Company focuses on creating innovative software solutions
Has a strong presence in various industries
Known for their expertise in software development
Skills evaluated in this interview
(4 Questions)
- Q1. Data structure and algorithm
- Q2. Some tricky logical question
- Q3. Stack and queue
- Q4. Some basic question about system Design
Vaishnavi Mishra
I applied via Referral and was interviewed in Jun 2024. There were 3 interview rounds.
Hackerrank Coding Test, Leetcode medium questions
HLD test, was asked to design an online coding platform like leetcode
(2 Questions)
- Q1. Most interesting project you have worked on
- Q2. How do you handle conflict at workplace
Interview Preparation Tips
- Prepare HLD well
It was a medium-level DSA round
This was also a DSA round
This again a DSA round
(1 Question)
- Q1. Can't disclose the question because of NDA signed but it was a design round
(1 Question)
- Q1. This was a project discussion round
Medium questions dp array graph recurrin
(1 Question)
- Q1. Leetcod easy question
Some database questions,some java questions .
(3 Questions)
- Q1. What is the difference between javascript and jQuery.
- Ans.
JavaScript is a programming language used for web development, while jQuery is a library built with JavaScript to simplify HTML document traversal and manipulation.
JavaScript is a programming language, while jQuery is a library written in JavaScript.
JavaScript can be used for a wide range of tasks, while jQuery is mainly used for DOM manipulation and event handling.
JavaScript is a core technology for web development, w...
- Q2. Define different types of join
- Ans.
Different types of joins are used in SQL to combine rows from two or more tables based on a related column between them.
Inner Join: Returns rows when there is at least one match in both tables.
Left Join (or Left Outer Join): Returns all rows from the left table and the matched rows from the right table.
Right Join (or Right Outer Join): Returns all rows from the right table and the matched rows from the left table.
Full ...
- Q3. Define multithreading concept and exception handling.
- Ans.
Multithreading allows multiple threads to run concurrently, while exception handling deals with errors in a program.
Multithreading involves running multiple threads simultaneously to improve performance and responsiveness.
Threads share the same memory space but have their own program counter and registers.
Exception handling is a mechanism to handle errors or exceptional situations in a program.
It helps prevent the prog...
Skills evaluated in this interview
(1 Question)
- Q1. Past Experience
Basic Question of percentage, ratio,time and work and etc
Fixed Logic Question with implementation
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Amazon System Software Engineer Interview Process
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