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Vodafone Idea Graduate Engineer Interview Questions, Process, and Tips

Updated 4 Mar 2025

Top Vodafone Idea Graduate Engineer Interview Questions and Answers

Vodafone Idea Graduate Engineer Interview Experiences

3 interviews found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I was interviewed in Feb 2025.

Round 1 - Coding Test 

Please pose three questions, with two being of easy to medium difficulty focusing on basic arrays and the two-pointer approach, while the third should be a standard dynamic programming question.

Round 2 - One-on-one 

(2 Questions)

  • Q1. What are the basic concepts of Object-Oriented Programming (OOP)?
  • Q2. What questions were asked about the projects mentioned in your resume?

Interview Preparation Tips

Interview preparation tips for other job seekers - A great workplace with an excellent culture.
Interview experience
4
Good
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Jul 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - Aptitude Test 

Basic questions based on aptitude, English and reasoning

Round 3 - One-on-one 

(5 Questions)

  • Q1. What is frequencyand explain it ?
  • Ans. 

    Frequency is the number of cycles per second in a periodic waveform.

    • Frequency is measured in Hertz (Hz).

    • It determines the pitch of a sound wave.

    • Higher frequency means higher pitch and vice versa.

    • Frequency is used in various fields like electronics, physics, and communication.

    • Example: The frequency of a radio station is 98.5 MHz.

  • Answered by AI
  • Q2. What is wavelength and explain it?
  • Ans. 

    Wavelength is the distance between two consecutive peaks or troughs of a wave.

    • Wavelength is measured in meters or nanometers.

    • It determines the color of light and sound frequency.

    • Shorter wavelengths have higher energy than longer wavelengths.

    • Examples include the wavelength of visible light, radio waves, and X-rays.

  • Answered by AI
  • Q3. Relationship between wavelength and frequency
  • Ans. 

    Wavelength and frequency are inversely proportional to each other.

    • Wavelength is the distance between two consecutive peaks or troughs of a wave.

    • Frequency is the number of waves passing through a point in one second.

    • The higher the frequency, the shorter the wavelength.

    • The lower the frequency, the longer the wavelength.

    • The relationship between wavelength and frequency is described by the equation: wavelength = speed of l...

  • Answered by AI
  • Q4. What is pulse code modulation
  • Ans. 

    Pulse code modulation is a digital representation of analog signals.

    • PCM is used to convert analog signals into digital signals.

    • It involves sampling the analog signal at regular intervals and quantizing the amplitude of each sample.

    • The resulting digital signal can be transmitted or stored more efficiently than the original analog signal.

    • PCM is commonly used in audio and video recording and transmission.

    • It is also used i

  • Answered by AI
  • Q5. Questions related to iot and it's applications

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well for basics so that you would be able to clear the interview

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I applied via Campus Placement and was interviewed in Jan 2022. There were 5 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - Aptitude Test 

In aptitude test we have to solve 60 question in 60minutes

Round 3 - Group Discussion 

A single topic is given to the each candidate

Round 4 - Technical 

(1 Question)

  • Q1. Most asked questions from your academic projects and 1 language and database language
Round 5 - HR 

(1 Question)

  • Q1. Mostly non tech questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Do strong with your projects and role of your projects.

Interview questions from similar companies

I was interviewed before Sep 2016.

Interview Questionnaire 

16 Questions

  • Q1. On what technology you have worked?
  • Ans. 

    I have worked on various technologies including Java, Python, AWS, Docker, and Kubernetes.

    • Java

    • Python

    • AWS

    • Docker

    • Kubernetes

  • Answered by AI
  • Q2. Case studies of daily operational activities?
  • Ans. 

    Daily operational activities case studies

    • Case study of optimizing production line for efficiency

    • Case study of implementing new safety protocols in a manufacturing plant

    • Case study of troubleshooting and resolving technical issues in a software development team

    • Case study of streamlining inventory management in a retail store

    • Case study of improving customer service processes in a call center

  • Answered by AI
  • Q3. What is project management?
  • Ans. 

    Project management is the process of planning, organizing, and overseeing the execution of a project from start to finish.

    • It involves defining project goals and objectives

    • Creating a project plan and timeline

    • Assigning tasks and responsibilities to team members

    • Monitoring progress and making adjustments as needed

    • Ensuring that the project is completed on time, within budget, and meets the desired quality standards

    • Examples ...

  • Answered by AI
  • Q4. What is financial and cost control during project management?
  • Ans. 

    Financial and cost control is the process of monitoring and managing project expenses to ensure they stay within budget.

    • Developing a detailed budget plan

    • Tracking expenses and comparing them to the budget plan

    • Identifying and addressing cost overruns

    • Negotiating with vendors to get the best prices

    • Implementing cost-saving measures

    • Regularly reporting on financial status to stakeholders

  • Answered by AI
  • Q5. What is resource management?
  • Ans. 

    Resource management is the process of planning, allocating, and optimizing resources to achieve organizational goals.

    • It involves identifying the resources needed for a project or task

    • Allocating those resources in an efficient manner

    • Monitoring and controlling resource usage to ensure optimal performance

    • Examples include managing personnel, finances, equipment, and time

    • Effective resource management can lead to increased p

  • Answered by AI
  • Q6. What is 2G , 3G, 4G call flow?
  • Ans. 

    2G, 3G, and 4G call flow are the processes involved in establishing and maintaining a mobile phone call.

    • 2G call flow involves circuit-switched technology and uses Time Division Multiple Access (TDMA) for voice transmission.

    • 3G call flow uses packet-switched technology and supports both voice and data transmission.

    • 4G call flow uses Long-Term Evolution (LTE) technology and provides high-speed data transmission.

    • All call fl...

  • Answered by AI
  • Q7. What is single RAN?
  • Ans. 

    Single RAN is a network architecture that allows multiple wireless technologies to be supported on a single physical network.

    • Single RAN stands for Single Radio Access Network.

    • It enables multiple wireless technologies such as 2G, 3G, 4G, and 5G to be supported on a single physical network.

    • This reduces the need for multiple hardware and software components, resulting in cost savings and simplified network management.

    • Sing...

  • Answered by AI
  • Q8. What is VOLTE?
  • Ans. 

    VOLTE stands for Voice over LTE. It is a technology that allows voice calls to be made over a 4G LTE network.

    • VOLTE uses IP packets to transmit voice calls over the LTE network

    • It provides better call quality and faster call setup times compared to traditional 2G/3G networks

    • VOLTE also allows for simultaneous voice and data usage on the same network

    • Examples of VOLTE-enabled devices include iPhone 6 and above, Samsung Gala...

  • Answered by AI
  • Q9. Difference between LTE & VOLTE?
  • Ans. 

    LTE is a standard for wireless broadband communication while VoLTE is a technology that enables voice calls over LTE network.

    • LTE stands for Long-Term Evolution and is a standard for wireless broadband communication.

    • VoLTE stands for Voice over LTE and is a technology that enables voice calls over LTE network.

    • LTE is used for data transfer while VoLTE is used for voice calls.

    • VoLTE provides better call quality and faster c...

  • Answered by AI
  • Q10. What is transport network?
  • Ans. 

    Transport network refers to the infrastructure that enables the movement of people, goods, and information.

    • Transport network includes roads, railways, airports, seaports, and communication networks.

    • It plays a crucial role in the economy by facilitating trade and commerce.

    • Examples of transport networks include the interstate highway system in the US and the European railway network.

    • Transport network planning involves op...

  • Answered by AI
  • Q11. Difference between ABIS over IP and ABIS over TDM?
  • Ans. 

    ABIS over IP and ABIS over TDM are two different methods of transmitting biometric data.

    • ABIS over IP uses internet protocol to transmit biometric data while ABIS over TDM uses time-division multiplexing.

    • ABIS over IP is more flexible and scalable than ABIS over TDM.

    • ABIS over TDM is more reliable and secure than ABIS over IP.

    • ABIS over IP is suitable for remote locations while ABIS over TDM is suitable for local networks.

    • ...

  • Answered by AI
  • Q12. Basic architecture of 2G , 3G & 4G?
  • Ans. 

    2G, 3G, and 4G are mobile network technologies with different architectures.

    • 2G uses circuit-switched technology and is primarily used for voice calls and text messaging.

    • 3G uses packet-switched technology and offers faster data transfer rates than 2G.

    • 4G uses all-IP packet-switched technology and provides even faster data transfer rates than 3G.

    • 4G also supports advanced features like VoLTE and carrier aggregation.

    • Each ge...

  • Answered by AI
  • Q13. Introduce yourself?
  • Ans. 

    I am a Senior engineer with 10+ years of experience in software development, specializing in backend systems and cloud technologies.

    • 10+ years of experience in software development

    • Specialize in backend systems and cloud technologies

    • Strong problem-solving skills

    • Experience with large-scale distributed systems

    • Proficient in programming languages such as Java, Python, and Go

  • Answered by AI
  • Q14. What are the experiences of your previous companies?
  • Ans. 

    I have worked in various companies ranging from startups to large corporations, gaining experience in diverse technologies and industries.

    • Worked in a startup where I was responsible for developing a scalable backend system using Node.js and MongoDB.

    • At a mid-sized company, I led a team in implementing CI/CD pipelines for faster and more reliable software delivery.

    • In a large corporation, I worked on optimizing performanc...

  • Answered by AI
  • Q15. Why do you want to join this company?
  • Ans. 

    I am impressed by the company's innovative projects and strong reputation in the industry.

    • Company's reputation for cutting-edge technology

    • Opportunity to work on challenging projects

    • Positive reviews from current employees

  • Answered by AI
  • Q16. What is your notice period? Is it negotiable or not?
  • Ans. 

    My notice period is currently 3 months, but it may be negotiable depending on the circumstances.

    • My current notice period is 3 months

    • I am open to negotiation depending on the circumstances

    • I can provide examples of when I have negotiated notice periods in the past

  • Answered by AI

Interview Preparation Tips

Round: Resume Shortlist
Experience: Submitted resume online through portal and received the call. Technical Telephonic interview was scheduled.

Tips: Resume should be as per the desired profile.

Round: Technical Interview
Experience: In this round interviewer asks basic technical questions based on the previous experiences that was mentioned in my resume.
Tips: Study all the points mentioned in the resume very deeply.

Round: Technical Interview
Tips: Given your answers to the point. It should be in brief .

Round: HR Interview
Tips: Conversation should be in proper communication. Try to convince the HR for joining. Negotiate the salary as per the profile offered to you.

Skills: Technical Skill, Communication And Confidence, Team Working Ability

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in Mar 2022. There was 1 interview round.

Round 1 - One-on-one 

(3 Questions)

  • Q1. 5G interfaces questions were asked
  • Q2. 5g protocol questions were asked in it
  • Q3. LTE Interfaces and protocal

Interview Preparation Tips

Interview preparation tips for other job seekers - Have good communication skills and be confident
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed in Nov 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Double-check your resume for any spelling mistakes. The recruiter may consider spelling mistakes as careless behavior or poor communication skills.
View all Resume tips
Round 2 - Technical 

(3 Questions)

  • Q1. Core Technical questions on all network technologies and protocols i.e- F5 LTM, Linux, Routing & Switching, VM. Process and flow related questions on real incident scenerios, change and problem management.
  • Q2. Core technical questions related to networking and ITIL process.
  • Q3. Core technical questions related to networking and ITIL process.
Round 3 - Case Study 

Round by Service Delivery Manager, asked about process loopholes, case study how to take in some real scenarios technical problems, incidents (Major & minor), Change management.

Round 4 - HR 

(1 Question)

  • Q1. Salary negotiations, future perspective, reason to leave all old organisation, loyalty after join and same kind of stuff.

Interview Preparation Tips

Topics to prepare for Ericsson Senior Engineer interview:
  • F5
  • LTM
  • ASM
  • NSX-T
  • NSX
  • VMware Vsphere
  • VCenter
Interview preparation tips for other job seekers - Process is also as equally important to technical.
My interview was 50% technical and 50% ITIL process.
Be focused and confident on technical part.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Aug 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - Aptitude Test 

AMCAT Test, OS, DSA, C, one simple coding question

Round 3 - Technical 

(1 Question)

  • Q1. Linked lists and project discussion
Round 4 - HR 

(1 Question)

  • Q1. Why Ericsson? What makes you stand out from other students
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Mar 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all Resume tips
Round 2 - Technical 

(3 Questions)

  • Q1. Tell me you daily task
  • Q2. Volte registration flow
  • Q3. Srvcc call flow and what is srvcc
  • Ans. 

    SRVCC (Single Radio Voice Call Continuity) is a feature that allows seamless handover of voice calls from LTE to 3G or 2G networks.

    • SRVCC is used to ensure that voice calls are not dropped during handover from LTE to 3G or 2G networks

    • It involves transferring the call from the LTE network to the circuit-switched 3G or 2G network

    • The handover is initiated by the network and is transparent to the user

    • SRVCC is important for ...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Read ims and volte call flow, prepaid call flow, ics call flow

I applied via Referral and was interviewed before Jan 2021. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Telecom domine question
  • Q2. Auto Cad basics and experience on telecom and wireless based question

Interview Preparation Tips

Interview preparation tips for other job seekers - Only 2round for experience candidate

I applied via Naukri.com and was interviewed in Jul 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all Resume tips
Round 2 - Technical 

(1 Question)

  • Q1. Technical related questions
Round 3 - One-on-one 

(1 Question)

  • Q1. Technical and project understanding related questions
Round 4 - HR 

(1 Question)

  • Q1. About organization and offer discussion

Interview Preparation Tips

Interview preparation tips for other job seekers - Expose your skills in resume and interview as well
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Vodafone Idea Interview FAQs

How many rounds are there in Vodafone Idea Graduate Engineer interview?
Vodafone Idea interview process usually has 3-4 rounds. The most common rounds in the Vodafone Idea interview process are One-on-one Round, Resume Shortlist and Aptitude Test.
What are the top questions asked in Vodafone Idea Graduate Engineer interview?

Some of the top questions asked at the Vodafone Idea Graduate Engineer interview -

  1. What is wavelength and explain ...read more
  2. What is frequencyand explain i...read more
  3. What is pulse code modulat...read more

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Vodafone Idea Graduate Engineer Interview Process

based on 3 interviews

Interview experience

4.3
  
Good
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Vodafone Idea Graduate Engineer Salary
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₹4.2 L/yr - ₹6 L/yr
5% less than the average Graduate Engineer Salary in India
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based on 17 reviews

3.2/5

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2.9

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3.2

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2.9

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3.1

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