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Types of testing include unit testing, integration testing, system testing, and acceptance testing.
Unit testing: Testing individual components or modules of the software.
Integration testing: Testing how different modules work together.
System testing: Testing the entire system as a whole.
Acceptance testing: Testing to ensure the software meets the requirements of the end users.
Priority and severity are used in software testing to determine the urgency and impact of a defect.
Priority is the level of importance assigned to a defect, based on factors like business impact and customer requirements.
Severity is the impact of a defect on the system, ranging from minor inconveniences to critical failures.
Examples: A spelling mistake in a button label may have low severity but high priority if it aff...
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posted on 21 Feb 2022
I applied via Campus Placement and was interviewed before Feb 2021. There were 2 interview rounds.
I appeared for an interview before Mar 2021.
Round duration - 30 minutes
Round difficulty - Medium
This was a MCQ round. 30 ques in 30 mins consisting of difficult quantitative aptitude questions were to be solved.
Round duration - 60 minutes
Round difficulty - Medium
In this test round, 2 coding questions were given. Either write the code or pseudo code
Given an integer N
, find all possible placements of N
queens on an N x N
chessboard such that no two queens threaten each other.
A queen can attack another queen if they ar...
The N Queens Problem involves finding all possible placements of N queens on an N x N chessboard without threatening each other.
Use backtracking algorithm to explore all possible configurations.
Keep track of rows, columns, and diagonals to ensure queens do not threaten each other.
Generate all valid configurations and print them out.
Given an integer array arr
of size 'N' containing only 0s, 1s, and 2s, write an algorithm to sort the array.
The first line contains an integer 'T' representing the n...
Sort an array of 0s, 1s, and 2s in linear time complexity.
Use three pointers to keep track of 0s, 1s, and 2s while traversing the array.
Swap elements based on the values encountered to sort the array in-place.
Time complexity should be O(N) and space complexity should be O(1).
Round duration - 60 minutes
Round difficulty - Easy
This was a technical round with questions on DSA.
You are given a string of length N
. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o...
Reverse words in a string while handling leading, trailing, and multiple spaces.
Split the input string by spaces to get individual words
Reverse the order of the words
Join the reversed words with a single space in between
You are provided with the head of a linked list containing integers. Your task is to determine if the linked list is circular.
Detect if a given linked list is circular by checking if it forms a closed loop.
Traverse the linked list using two pointers, one moving at double the speed of the other.
If the two pointers meet at any point, the linked list is circular.
If the faster pointer reaches the end of the list (NULL), the linked list is not circular.
Round duration - 30 minutes
Round difficulty - Easy
HR round with typical behavioral problems.
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
posted on 10 Nov 2015
I appeared for an interview before Oct 2020.
Round duration - 40 minutes
Round difficulty - Medium
Asked about time complexity of algorithm, puzzles, DBMS, cutting edge technologies etc. What are indexes?
Given an array of integers ARR
of size N, consisting of 0s and 1s, you need to select a sub-array and flip its bits. Your task is to return the maximum count of 1s that can b...
Given an array of 0s and 1s, find the maximum count of 1s by flipping a sub-array at most once.
Iterate through the array and keep track of the maximum count of 1s obtained by flipping a sub-array.
Consider flipping a sub-array from index i to j and calculate the count of 1s in the resulting array.
Return the maximum count of 1s obtained by flipping a sub-array at most once.
Round duration - 20 minutes
Round difficulty - Medium
Asked 1 standard algorithm
You are provided with a 2-dimensional matrix having N
rows and M
columns, containing only 1s (land) and 0s (water). Your goal is to determine the number of islands in t...
Count the number of islands in a 2D matrix of 1s and 0s.
Iterate through the matrix and perform depth-first search (DFS) to find connected 1s.
Mark visited cells to avoid redundant traversal.
Increment island count whenever a new island is encountered.
Tip 1 : prepare for competitive programming
Tip 2 : know about standard algorithm
Tip 3 : must be good with dbms
Tip 1 : must have projects, which you can explain to them
Tip 2 : have things on resume, that you are totally certain about.
posted on 28 Jan 2022
I applied via Campus Placement and was interviewed before Jan 2021. There were 4 interview rounds.
A timestamp converter that converts timestamp to date and time.
Use a programming language that supports date and time functions.
Convert the timestamp to a date and time format using the appropriate function.
Handle time zone differences if necessary.
Consider the output format required.
Design a parking lot
Determine the size and capacity of the parking lot
Decide on the layout and number of parking spaces
Implement a system for managing parking spots and payments
Consider adding features such as security cameras and lighting
Ensure accessibility for disabled individuals
posted on 4 Sep 2024
Basic questions for aptitude
DSA Easy and medium. Basics of linked list and arrays.
Dont't remember the exact questions
posted on 6 Sep 2024
I applied via Campus Placement and was interviewed in Aug 2024. There were 2 interview rounds.
1st round of the company was an online assessment with 40 questions,2 coding questions :- cake distribution problem, Palindrome and else there were 6-7 SQL questions and other were Aptitude questions (basic) whole test was for 1 hr.
Use ALTER TABLE to add a new column and then use MAX function to find the highest salary.
Use ALTER TABLE statement to add a new column to the table.
Use MAX function in SQL to find the maximum salary of employees.
Calculate the sum of digits of a given number.
Iterate through each digit of the number and add them together.
Use modulo operator to extract each digit.
Repeat until all digits are processed.
Example: For number 123, sum of digits = 1 + 2 + 3 = 6.
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