D-VoiS Communications Graduate Engineer Trainee (Get) Interview Questions and Answers for Freshers

Aptitude+ Ece domain questions

Group discussion on normal trending topics

Q1. Technical interview pure domain questions mainly from communication engineering.
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Q2. Elaborate full Call flow process.
Ans. 
Call flow process is the sequence of steps followed during a phone call.
• Call initiation by dialing the number

• Call routing to the appropriate network

• Ring tone at the receiver end

• Answering the call

• Conversation between the parties

• Call termination by either party
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Q3. Basic difference between 3G,4G and 5G bands and speeds?
Ans. 
3G, 4G and 5G bands differ in terms of speed, frequency, and latency.
• 3G operates on frequencies between 850 MHz to 2100 MHz with a maximum speed of 2 Mbps.

• 4G operates on frequencies between 700 MHz to 2600 MHz with a maximum speed of 100 Mbps.

• 5G operates on frequencies between 24 GHz to 100 GHz with a maximum speed of 20 Gbps.

• 5G has lower latency than 4G, which means faster response times.

• 5G also has the ability to sup...read more
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Q4. What is cyber security?
Ans. 
Cybersecurity refers to the practice of protecting computer systems, networks, and sensitive information from unauthorized access, theft, or damage.
• It involves implementing measures to prevent cyber attacks and data breaches

• It includes using firewalls, antivirus software, and encryption techniques

• It also involves educating users about safe online practices and creating strong passwords

• Examples of cyber attacks include ...read more
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Why are you looking for a change?
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Q4. Share details of your previous job.
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Q5. Why should we hire you?
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Q6. Where do you see yourself in 5 years?
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Q7. What are your strengths and weaknesses?
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Q8. Tell me about yourself.
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GD topic was based on mutual agreement. It was vey general something related to education. It consist of around 9-12 people in a single batch with a chinese person as incharge. Everyone gets a chance 1-by-1 to speak.

Q1. Most of the interview went around my interests not around wayy technical. He although asked around fourier transform, QAM, modulation techniques etc.
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Q1. About everything mentioned in the resume.
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Q2. College projects
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Q1. Behavioural questions - family, city I belong to, goals.
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Q1. General Basic level questions asked .
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Q2. Questions related to design as i applied for design role
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General introduction and simple scenario based questions

They gave one topic to discuss on that

Q1. They asked your projects and some normal questions related to your Btech
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Q1. They told about the salary and benefits
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Q1. Related to Profile experience
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Q2. Related to your past experience
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Q1. What is osi layer
Ans. 
OSI (Open Systems Interconnection) model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven abstraction layers.
• The OSI model helps in understanding how different networking protocols work together.

• Each layer in the OSI model performs specific functions and communicates with adjacent layers.

• Examples of OSI layers include physical layer, data link layer, networ...read more
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Q1. Salary negotiation
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Basic questions like positioning array , sorting