GTT Communications Service Delivery Coordinator Interview Questions and Answers

Q1. Prepare all the things related to your work
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Q1. General discussion about my life and sallery.
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Q1. Work related discussion session.
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Q1. Pick one question from 3 given questions and complete it in 7 days. I opted for creating traingle with opengl using shader.
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Data structures and algorithms
Problem were from leetcode and geek for geeks.

Q1. Data structures and algorithms
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Q1. Design and algorithms
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Coding round , questions from leetcode

Situation based questions and thought process

Q1. Managerial round 1, culture fit, behaviour
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Q2. Managerial round 2, innovative things done previously, how to face criticism, does experience matters in learning from subordinate
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Generic dotnet questions mcq

Q1. .net, c# , sql , async questions
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One problem is given need to make logic and your current project details

Managerial round was taken at the end

Q1. Explain 3G call flow
Ans. 
3G call flow involves multiple steps including network registration, call setup, and data transfer.
• User equipment (UE) registers with the network by sending a Location Update Request.

• Network authenticates the UE and assigns it a temporary identity.

• UE initiates a call by sending a Setup Request to the network, which then establishes a connection with the called party.

• Data transfer occurs between the two parties over the...read more
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Q2. Explain 23 to 3G handover
Ans. 
23 to 3G handover is a process where a mobile device switches from a 2G network to a 3G network for better data speeds and coverage.
• Handover process involves the mobile device connecting to a new network while maintaining the ongoing call or data session.

• The switch from 2G to 3G network is triggered based on factors like signal strength, network congestion, and data speed requirements.

• During handover, the mobile device...read more
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Q1. Networking related questions
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Q1. Location & compensation related
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One hour Leet code medium question

Q1. Golang related questions and Question on projects done.
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One take home assignment

Q1. Questions on JS basics
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Q2. Angular deep dive
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Q1. General discussion with hiring manager
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Two problems, one easy and another medium level.

Q1. One linked list Problem
Ans. 
Reverse a linked list
• Iterate through the linked list and reverse the pointers

• Use three pointers to keep track of current, previous, and next nodes

• Update the pointers accordingly to reverse the list
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Q2. Questions on project and solutions we porvided
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Q1. About the current project
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Q2. Some behavioural questions
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2 coding questions in c/c++, 1 hr 30 mins - no. of deletions/additions needed to make 1 string equal to another. 2. print frequency of each number in array