Round 1 – Online Assessment: The first round was the online assessment on Hackerrank, which had 9 questions.

• The 1st question was on REST API.
• The 2nd was a basic DSA question.
• The 3rd was to write an SQL query.
• The next 6 questions were MCQs.

Round 2 – Technical Interview: At the start of the first interview round, the interviewer asked for my introduction, and the round began with 2 puzzles.

• 1 question on SQL query.
• 2 easy-medium DSA questions.

Round 3 (Technical + Managerial): I was asked for my introduction again, then we had some discussion based on projects. After that, the interviewer asked some questions on team leading and teamwork.

My overall experience was good. The interviewers were helpful.

Q1: Can you fix 6 + 4 = 4 by moving 1 matchstick? The ground rules are you cannot break a stick, it should be an equality (=), and you have to use 7-segment numbers (the block numbers 0 to 9 commonly seen on a calculator).

Q2: A cable of 80 meters (m) is hanging from the top of two poles that are both 50 m from the ground. What is the distance between the two poles, to one decimal place, if the center of the cable is:

(a) 20 m above ground? (b) 10 m above ground?

Q3: You are provided with 8 identical balls and a measuring instrument. 7 of the eight balls are equal in weight, and one of the eight given balls is defective and weighs less. The task is to find the defective ball in exactly two measurements.

Q4: Write a program to print all permutations of a given string.