RedBus QA Engineer Interview Questions and Answers

Q1. Java: oops concepts in java? how do you initialise private elements of a class? Ways to define strings in java? exceptions in java? difference between exception and error? checked and unchecked exception? ...read more
Ans. 
Questions on Java, API testing, Selenium, and SQL
• Java: OOPs concepts, initializing private elements, defining strings, exceptions, difference between exception and error, checked and unchecked exceptions

• API testing: Testing POST query, drawbacks, response codes

• Selenium: Assert vs verify, drawbacks, implicit and dynamic wait, types of testing supported, types of x-path

• SQL: Select query
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Q2. Program: String reverse? count no. of words in given string? swap two np. without temp variable?
Ans. 
Answering programming questions related to string manipulation.
• To reverse a string, use a loop to iterate through the string and append each character to a new string in reverse order.

• To count the number of words in a string, split the string into an array using whitespace as the delimiter and return the length of the array.

• To swap two numbers without a temp variable, use arithmetic operations to perform the swap. For
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Technical Round 2:
what is POJO?
Scenario based questions on selenium testing?
program to print first non repeating character in a string?
Program on substring(),split()
Program to implement linkedHashMap?
what is load balancer?
status code 503 and 505?