Bharti Airtel Interview Experience for YTL Network Trainee (On-Campus)

Job Profile: YTL Network Trainee
Eligible Course: B. Tech
Eligible Branches: CS, EC, EI, EE

The Whole Process consisted of three rounds :

• Online Assessment
• Technical Interview I
• Technical Interview II

Around 100-120 students applied across the eligible branches.

Round 1: Online Assessment:

The first round was an Online Assessment conducted on a platform that was new, not the trivial ones used for other online assessments, there were four sections to be solved in 87 minutes.

The four sections were

1. Motion Challenge
2. Switch Challenge
3. Numerical Reasoning
4. Coding

Motion Challenge :

In this section it was a collection of puzzles , To be solved in 9 mins, There were different levels, once you solve the current level, the next level will be displayed, try solving maximum levels as possible, I would say solving 15+ levels is on a safer side, where in in a puzzle you have to move a ball to given hole, with some obstacles, here you got to move the ball to the hole by moving the obstacles with minimum no of moves possible.

Switch Challenge:

This section focusses on logical ability, to be solved in 9 mins, The centralized Idea of all the levels was there were four shapes, each associated with four numbers 1,2,3,4, then after the shapes will be jumbled, we have to find the order of numbers, again here try solving as many problems as possible.

Numerical Reasoning:

This round focusses on numerical ability, to be solved in 9 mins, again try completing this section asap. The questions were based on basic math and aptitude.

Coding-Advanced:

Question 1:

Height of a tree: The height of a tree is the number of edges on the longest path from the root node to a leaf. You are given a binary tree with unique integers in its nodes. Find the path to in from the root. The path will be described in form of ‘L’ for left and ‘R’ for right denoting the turns taken to reach n

Note: No null input is given

Input Format:

• The input consists of three lines
• The first line contains an integer representing the height of the tree.
• The second line contains multiple space-separated integers denoting the level order traversal of the tree. Nodes with value -1 represent empty nodes
• The third line contains an integer denoting n.
• The input will be read from the STDIN by the candidate

Output Format

• print the path consisting of ‘L’ and ‘R’ representing the path to reach n from the root node

Question 2 :

https://www.geeksforgeeks.org/maximize-elements-using-another-array/amp/

Round 2: Technical Interview I:

• Out of the 100-120 students, only 10 students were shortlisted for the interviews. Starting off with the interview, the interviewer was very friendly and asked me to introduce myself.
• Asked me to explain my projects and shot some questions on them.
• Straight after my introduction he jumped onto a simple DSA question based on strings.

Question link:

https://www.geeksforgeeks.org/program-convert-time-12-hour-24-hour-format/amp/

• Then based on the core computer concepts I mentioned in my resume, he asked me some theory questions on Operating Systems, also he asked me about “DFS and BFS” in graphs followed by questions on sorting.
• This round lasted for around 30-35 minutes.

Round 3: Technical Interview II:

The third and final round was the Technical Interview II. Out of 10 ,6 members were shortlisted for the last round. This round focused completely on my resume. Starting off he asked me to introduce myself then straight on he started asking questions based on the courses based on my resume,

• Write a SQL query to print the fifth highest salary(standard question in SQL) and asked how will you solve this on analogy to DSA
• How will You sort an infinite array?
• Explain few algos in DSA
• Few basic questions from OOPS,DBMS

It was a two-way discussion, where I also had the opportunity to ask questions about the company culture, growth prospects, and more, this round lasted for around 25-30 minutes.

Out of the six students, four students were given the offer and I was one of them.

Tips:

• Include telecommunication-related concepts in your introduction to impress the interviewer.
• Be thorough through all the projects, courses mentioned in your resume.
• Throughout the interview process, be fluid, assured, and patient.

All the best 🙂 | Cheers!