SpeedLabs Software Developer Intern Interview Questions and Answers

Data structures, particularly strings, play a crucial role in problem-solving.

Q1. Please tell me about yourself.
Ans. First of all , thank you! For this opportunity to introduce my self. I am Akash kumar kushwaha, I was born in bihar 2001 , but I live in ghaziabad now. I m currently pursuing my b.tech from IMS engineering college ghaziabad. And I completed my 10th and 12th from co-operative uchh vidyalaya jagdishpur with score 60% in 10th and 65% in 12th . And my hobby is playing cricket and travelling.
Answered by AKASH KUMAR KUSHWAHA
Add your answer
Q2. Why should we hire you?
Ans. 
I have a strong technical background, excellent problem-solving skills, and a passion for software development.
• I have a Bachelor's degree in Computer Science and 5 years of experience in software development.

• I am proficient in multiple programming languages such as Java, Python, and JavaScript.

• I have a track record of delivering high-quality code on time and within budget.

• I am a quick learner and always eager to stay u...read more
Answered by AI
Add your answer
Q3. What are your strength and weakness .
Ans. 
Strength: Problem-solving skills, Weakness: Impatience
• Strength: Strong problem-solving skills demonstrated through successful projects

• Weakness: Impatience when tasks take longer than expected, working on improving patience through time management techniques
Answered by AI
Add your answer
Q4. Why did you choose career in software developer.
Ans. 
Passion for problem-solving and creating innovative solutions drove me to pursue a career in software development.
• Fascination with technology and its potential to improve lives

• Enjoyment of logical thinking and coding challenges

• Desire to constantly learn and adapt in a fast-paced industry

• Previous experience in programming projects or internships
Answered by AI
Add your answer

Q1. What is your area of expertise in programming languages?
Ans. 
My area of expertise in programming languages is in web development, specifically with JavaScript, HTML, and CSS.
• Proficient in JavaScript for client-side scripting and server-side development with Node.js

• Experienced in building responsive and interactive web applications using HTML and CSS

• Familiar with popular frameworks and libraries like React, Angular, and Bootstrap
Answered by AI
Add your answer
Q2. What is JavaScript, and what are its benefits?
Ans. 
JavaScript is a high-level, interpreted programming language used for creating interactive websites.
• JavaScript is commonly used for client-side web development.

• It allows for dynamic content updates without reloading the page.

• JavaScript can be used to create interactive elements like forms, animations, and games.

• It is supported by all major web browsers.

• JavaScript can also be used for server-side development with Node.j...read more
Answered by AI
Add your answer

Round duration - 120 minutes
Round difficulty - Easy

Q1. 
Find All Pairs Adding Up to Target
Given an array of integers ARR of length N and an integer Target, your task is to return all pairs of elements such that they add up to the Target.
Input:
The first line ...read more
Ans. 
Given an array of integers and a target, find all pairs of elements that add up to the target.
• Iterate through the array and for each element, check if the target minus the element exists in a hash set.

• If it exists, add the pair to the result. If not, add the element to the hash set.

• Handle cases where the same element is used twice in a pair.

• Return (-1, -1) if no pair is found.
Answered by AI
Add your answer

Round duration - 70 Minutes
Round difficulty - Medium

Timing was 9:15AM. Platform was not very good. Questions were not well explained.

Q1. 
Merge Overlapping Intervals Problem Statement
Given a specified number of intervals, where each interval is represented by two integers denoting its boundaries, the task is to merge all overlapping interv...read more
Ans. 
Merge overlapping intervals and return sorted list of merged intervals.
• Identify overlapping intervals based on start and end times

• Merge overlapping intervals to form new intervals

• Sort the merged intervals in ascending order of start times
Answered by AI
Add your answer
Q2. 
Rat in a Maze Problem Statement
You need to determine all possible paths for a rat starting at position (0, 0) in a square maze to reach its destination at (N-1, N-1). The maze is represented as an N*N ma...read more
Ans. 
Find all possible paths for a rat in a maze to reach its destination, given a matrix representation of the maze.
• Use backtracking to explore all possible paths from the starting position to the destination.

• Keep track of the current path and explore all possible directions at each step.

• Terminate the exploration when reaching the destination or hitting a blocked cell.

• Return the list of valid paths found, sorted in alphabe...read more
Answered by AI
Add your answer
Q3. 
Problem: Permutations of a String
Given a string STR consisting of lowercase English letters, your task is to return all permutations of the given string in lexicographically increasing order.
Explanatio...read more
Ans. 
Return all permutations of a given string in lexicographically increasing order.
• Generate all permutations of the given string using backtracking algorithm.

• Sort the permutations lexicographically before printing them.

• Ensure the string contains unique characters for correct output.

• Handle multiple test cases efficiently.

• Example: For input 'bca', output 'abc acb bac bca cab cba'.
Answered by AI
Add your answer

2 coding questions with aptitude question(logical aptitude and quantitative aptitude)

This was a Machine Coding. We need to design a system and then they will check our design by running test cases. It was 2.5 hrs long.

Q1. Basic questions on computer core subjects(Deadlock, Networking, Tcp connection, process scheduling etc, DNS Lookup etc)
Add your answer
Q2. Questions on React, Node and the libraries which I used in my project(My project was a full stack project)
Add your answer

Round duration - 70 minutes
Round difficulty - Medium

Timing was 9:15AM. Platform was not very good. Questions were not well explained.

Q1. 
Merge Overlapping Intervals Problem Statement
Given a specified number of intervals, where each interval is represented by two integers denoting its boundaries, the task is to merge all overlapping interv...read more
Ans. 
Merge overlapping intervals and return sorted list of merged intervals.
• Identify overlapping intervals based on start and end times

• Merge overlapping intervals to form new intervals

• Sort the merged intervals in ascending order of start times
Answered by AI
Add your answer
Q2. 
Rat in a Maze Problem Statement
You need to determine all possible paths for a rat starting at position (0, 0) in a square maze to reach its destination at (N-1, N-1). The maze is represented as an N*N ma...read more
Ans. 
Find all possible paths for a rat in a maze from source to destination.
• Use backtracking to explore all possible paths in the maze.

• Keep track of visited cells to avoid revisiting them.

• Recursively try moving in all directions (up, down, left, right) until reaching the destination.

• Return the valid paths as a list of strings sorted in alphabetical order.
Answered by AI
Add your answer

Round duration - 60 minutes
Round difficulty - Easy

Q1. 
Path Queries Problem Statement
Consider a weighted, undirected graph with 'V' vertices numbered from 1 to 'V' and 'E' bidirectional edges. You are tasked with handling 'Q' queries. For each query, you are...read more
Ans. 
Implement a function to find the shortest distance between two vertices in a weighted, undirected graph.
• Use Dijkstra's algorithm to find the shortest path between the given vertices.

• Create a graph data structure to represent the weighted, undirected graph.

• Handle cases where no path exists between the given vertices by returning -1.

• Optimize the algorithm to handle multiple queries efficiently.

• Consider edge cases such as...read more
Answered by AI
Add your answer
Q2. 
Merge Sort Algorithm Problem Statement
Your task is to sort a sequence of numbers stored in the array ‘ARR’ in non-descending order using the Merge Sort algorithm.
Explanation:
Merge Sort is a divide-an...read more
Ans. 
Implement Merge Sort algorithm to sort a sequence of numbers in non-descending order.
• Divide the input array into two halves recursively

• Sort the two halves separately

• Merge the sorted halves to produce a fully sorted array

• Time complexity of Merge Sort is O(n log n)

• Example: Input - [5, 2, 9, 1, 5], Output - [1, 2, 5, 5, 9]
Answered by AI
Add your answer
Q3. 
Rat in a Maze: All Paths Problem
You are provided with an N * N maze where a rat is positioned at starting cell MAZE[0][0]. The goal is to determine and print all possible paths that the rat can take to r...read more
Ans. 
Given an N * N maze with binary values, find and print all possible paths for a rat to reach the destination cell.
• Use backtracking to explore all possible paths from the starting cell to the destination cell.

• At each cell, check if it is a valid move (within bounds and not blocked), then recursively explore all four directions.

• Keep track of the path taken so far and mark the cells accordingly.

• Once the destination cell i...read more
Answered by AI
Add your answer

Basic coding and MySQL queries. Like Types of join, having and where difference etc.

Q1. Salary Discussion.
Add your answer

Q1. What is OOPS concepts.
Ans. 
OOPS concepts refer to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation detail...read more
Answered by AI
Add your answer
Q2. What is PDO and uses in PHP.
Ans. 
PDO stands for PHP Data Objects, a database access layer providing a uniform method of access to multiple databases.
• PDO is a PHP extension that provides a data-access abstraction layer.

• It supports multiple database systems like MySQL, PostgreSQL, SQLite, etc.

• PDO helps prevent SQL injection attacks by using prepared statements.

• It allows for error handling and supports transactions.

• Example: $pdo = new PDO('mysql:host=loc...read more
Answered by AI
Add your answer