Rigved Technologies Software Developer Interview Questions and Answers

OOPS , DBMS , OS , and DSA concepts

Q1. DBMS related concepts
Add your answer
Q2. Networking and Network Security
Add your answer

Building small UI screen application in 1 hr for frontend developer

Q1. Graph traversal question
Add your answer
Q2. React js questions
Add your answer
Q3. Javascript output guessing question
Add your answer

Q1. You have a hotel and how will you create a complete schema for hotel
Ans. 
To create a complete schema for a hotel, you need to consider various entities like rooms, guests, reservations, staff, amenities, etc.
• Entities to include: rooms, guests, reservations, staff, amenities, invoices, payments

• Relationships between entities: guest stays in a room, staff manages reservations, amenities are available in rooms

• Attributes for each entity: room number, guest name, reservation date, staff ID, ameni
Answered by AI
Add your answer

Q1. They will ask you about core java
Add your answer

Q1. Explain joins in SQL
Ans. 
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column between them

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• INNER JOIN returns rows when there is at least one match in both tables

• LEFT JOIN returns all rows from the left table and the matched rows from the right table

• ...read more
Answered by AI
Add your answer
Q2. What are object and class in OOPs?
Ans. 
Objects are instances of classes in OOPs. Classes are blueprints for creating objects with attributes and methods.
• Objects are instances of classes

• Classes are blueprints for creating objects

• Classes define attributes and methods for objects

• Example: Class 'Car' with attributes like 'color' and methods like 'drive'
Answered by AI
Add your answer

Round duration - 25 minutes
Round difficulty - Easy

This was face to face interview round. All questions asked by the interviewer were based on data structures.

Q1. Detect loop
Detect loop in linked list.
Ans. 
• I told the interviewer about two pointers approach that is using the concept of the slow and fast pointer. Then he asked me to write its code which I wrote very neatly with comments in the code.
Answered by CodingNinjas
View 3 more answers
Q2. Tree Symmetricity
Given a binary tree, check whether it is a mirror of itself.
 
For example, this binary tree is symmetric:
 
       1
    /      \
  2...read more
Ans. 
• I just give recursion based approach to the interviewer by checking the current root and calling the recursion on the left and right part. Also after the discussion of approach I wrote its functional code to the interviewer.
Answered by CodingNinjas
View 1 more answer
Q3. Anagram Pairs
Check whether two given strings are anagram or not.
Ans. 
• I firstly gave sorting and comparing solution, but he asked me to optimize it so I gave him a hashing based solution and he was satisfied by my approach.
Answered by CodingNinjas
View 2 more answers