Data Semantics Software Engineer Interview Questions and Answers for Freshers

In this round, we have questions from time relation, blood relation, programming questions. Around 45 questions in 30 minutes,

In this round, we have two programming questions. Both are hacker rank easy to medium level.

Q1. In this round, we have questions from the core java and a famous scooter tire question.
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I was asked t solve 2 coding questions got 20 minutes for each, both were on DS and Algo moderate problems. 1 on trees and second on linked list.

Q1. System design round where i was asked to design a parking lot followed by few DB questions
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Q1. Then there was a UI round where i had to answer few Typescript questions and then was given a case study which i had t solve and propose a UI/UX solution.
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The first round was an aptitude test. There were 30 questions with 1 marks for each.

After being selected from the first round the second round was the Coding test there were 6 sets and 1 set had 3 questions. they told me to do it in an online compiler without an internet connection.

Q1. After being selected from the coding test. They took technical interviews and asked very basic questions like oops and all but they were doing cross-questioning.
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30min Pseudo Code,Ratio and Proportion

1 hour Array,HashMap

Q1. Write a program a string is Anagram or not
Ans. 
Program to check if a string is an Anagram or not
• Create a function that takes in two strings as input

• Sort the characters in both strings and compare if they are equal

• Return true if they are anagrams, false otherwise
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Q2. How to connect mongodb with database
Ans. 
To connect MongoDB with a database, you need to use the MongoDB URI and a MongoDB client library.
• Use the MongoDB URI to specify the connection details such as host, port, username, password, and database name

• Install a MongoDB client library like Mongoose for Node.js or pymongo for Python

• Use the client library to establish a connection to the MongoDB database and perform CRUD operations
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Q3. What is event listener
Ans. 
An event listener is a function that waits for a specific event to occur and then triggers a response.
• Event listeners are commonly used in web development to handle user interactions like clicks, keypresses, etc.

• They are attached to specific elements and listen for events to occur on those elements.

• Once the event occurs, the listener executes a callback function to respond to the event.

• Example: Adding a click event lis...read more
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Q4. What is polymorphism
Ans. 
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Inheritance in object-oriented programming languages like Java allows for polymorphism.
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Q1. How to reverse a string without using extra space
Ans. 
Use two pointers to swap characters in place
• Initialize two pointers, one at the beginning of the string and one at the end

• Swap characters at the two pointers and move them towards each other until they meet or cross

• Repeat the process until the entire string is reversed
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Q2. Find a number that not present in array in O(N) time complexity array contain only 0 to n numbers
Ans. 
Use bitwise XOR operation to find the missing number in O(N) time complexity.
• Iterate through the array and XOR all the elements with their indices and the array length.

• The missing number will be the result of XORing all the elements with their indices and the array length.
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Q3. Why should you join this company
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Q4. How many interview have you give previously and why you get rejected
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Practice atleast 20 questions for every topic.

Q1. Introduction Achievement background education
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Q2. Ask about technical skills and ask questions about projects
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Q1. Questions based on Objects and Classes Basic Questions related to DSA Projects discussions- Your Roles and Tasks Scenario based Questions Few Reasoning Questions
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Q1. Questions related to Trees and Graphs nested SQL Queries Scenario Based Questions Projects Logics for the coding given
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Q1. Just basic HR Questions Reallocation
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This one is a combination of aptitude and coding test where medium questions abt c,cpp are asked
Do few aptitude test and some level of coding and ull be able to clear the test quite easily

Q1. What is inheritance in cpp Basic oops concept question Basic dbms related question
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Q1. For me they just asked me about my project and i was good to go
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