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Amazon Software Developer 1 Interview Questions and Answers
Amazon Software Developer 1 Interview Experiences
1 interview found
I applied via LinkedIn and was interviewed in Jul 2024. There was 1 interview round.
Given 100 numbers return n unique numbers
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
I applied via LinkedIn and was interviewed in Nov 2024. There was 1 interview round.
(2 Questions)
- Q1. Minimum Knight Moves (LC Medium)
- Q2. OS, CN, DB concepts like multithreading, semaphore, tcp vs udp, transaction and ACId properties. Java concepts like stack vs heap(memory), error vs exception. Any 1 Project discussion for 10 mins
Interview Preparation Tips
(2 Questions)
- Q1. What is the implementation of Merge Sort in Java?
- Ans.
Merge Sort is a divide and conquer algorithm that divides the input array into two halves, recursively sorts them, and then merges the sorted halves.
Divide the input array into two halves
Recursively sort the two halves
Merge the sorted halves back together
- Q2. What is the implementation of the Quick Sort algorithm in Java?
- Ans.
Quick Sort is a popular sorting algorithm that uses a divide-and-conquer approach to sort elements in an array.
Choose a pivot element from the array.
Partition the array into two sub-arrays: elements less than the pivot and elements greater than the pivot.
Recursively apply the same process to the sub-arrays.
Combine the sorted sub-arrays to get the final sorted array.
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
BFS Implementation of a jug question.
(2 Questions)
- Q1. Few hashmap questions
- Q2. Object Oriented Programming questions
(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
I applied via LinkedIn and was interviewed in Jul 2024. There was 1 interview round.
(2 Questions)
- Q1. Why you want to join facebook?
- Ans.
I want to join Facebook because of its innovative technology, global impact, and opportunities for growth.
Innovative technology: Facebook is known for its cutting-edge technology and constant innovation.
Global impact: Working at Facebook would allow me to contribute to a platform that connects billions of people worldwide.
Opportunities for growth: Facebook offers a dynamic and fast-paced work environment with ample opp...
- Q2. Whats the best feature you like in Facebook?
- Ans.
I appreciate the personalized news feed feature on Facebook.
Personalized news feed shows content based on user interests
Helps users stay updated on relevant information
Allows users to engage with content they are interested in
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