Wipro Software Developer Intern Interview Questions and Answers

Round duration - 60 Minutes
Round difficulty - Medium

The test was scheduled in early morning 
The environment was stable and strict

Q1. How do you join two tables in SQL?
Ans. 
Joining two tables in SQL involves using the JOIN keyword to combine rows from both tables based on a related column.
• Use the JOIN keyword followed by the table you want to join and the ON keyword to specify the column to join on

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

• Example: SELECT * FROM table1 JOIN table2 ON table1.column = table2.column
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Q2. 
String Palindrome Verification
Given a string, your task is to determine if it is a palindrome considering only alphanumeric characters.
Input:
The input is a single string without any leading or trailing...read more
Ans. 
Check if a given string is a palindrome considering only alphanumeric characters.
• Remove non-alphanumeric characters from the input string.

• Compare characters from start and end of the string to check for palindrome.

• Handle edge cases like empty string or single character input.
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Round duration - 12 minutes
Round difficulty - Medium

The technical interview was scheduled in evening.
The environment was stable and friendly 
The interviewer provided enough comfort. He asked some technical questions that’s all.

Round duration - 10 minutes
Round difficulty - Medium

This HR interview was scheduled in morning 
The environment was fine as it was the last round 
The interviewer was friendly and was trying to know how much willing I am to join the company.

Round duration - 90 minutes
Round difficulty - Medium

It is from 12 to 1:30 pm. Environment was very friendly and interviewer was very nice.

Q1. 
Nth Term of Geometric Progression Problem
Given the first term A, the common ratio R, and an integer N, your task is to find the Nth term of a geometric progression (GP) series.
Explanation:
The general...read more
Ans. 
Calculate the Nth term of a geometric progression series modulo 10^9 + 7.
• Use the formula A * R^(N-1) to find the Nth term of the GP series.

• Remember to calculate the result modulo 10^9 + 7.

• Handle multiple test cases efficiently to stay within the time limit.
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Round duration - 90 minutes
Round difficulty - Easy

Very friendly environment