Tech Mahindra SDE (Software Development Engineer) Interview Questions and Answers

Recursion is a programming technique where a function calls itself to solve a problem.

• Recursion involves breaking down a problem into smaller subproblems and solving them recursively.

• It requires a base case to stop the recursion and prevent infinite loops.

• Recursion can be used to solve problems like traversing trees and sorting algorithms.

• Examples of recursive functions include factorial, Fibonacci sequence, and binary...read more

Ethernet is a networking technology used for LANs. Switches and hubs are devices used to connect multiple devices to a network.

• Ethernet is a protocol used for communication between devices on a network.

• A switch is a networking device that connects devices on a network and directs data to its intended recipient.

• A hub is a networking device that connects devices on a network and broadcasts data to all connected devices.

• S...read more

Types of join in DBMS

• Inner join: returns only the matching rows from both tables

• Left join: returns all the rows from the left table and matching rows from the right table

• Right join: returns all the rows from the right table and matching rows from the left table

• Full outer join: returns all the rows from both tables, with NULL values in the columns where there is no match

• Cross join: returns the Cartesian product of both

Write a pattern coding problem using an array of strings.

• Use loops to iterate through the array and print the pattern.

• The pattern can be any shape or design.

• Make sure to use proper spacing and formatting.