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Airtel X- Labs Lead Engineer Interview Questions and Answers

Updated 7 Dec 2021

Airtel X- Labs Lead Engineer Interview Experiences

2 interviews found

Interview Questionnaire 

2 Questions

  • Q1. CAP theorem
  • Ans. 

    CAP theorem states that a distributed system cannot guarantee consistency, availability, and partition tolerance at the same time.

    • Consistency: all nodes see the same data at the same time

    • Availability: every request receives a response, without guarantee that it contains the most recent version of the information

    • Partition tolerance: the system continues to function even when network partitions occur

    • Examples: Cassandra p...

  • Answered by AI
  • Q2. Deadlock code

Interview Preparation Tips

Interview preparation tips for other job seekers - Basic DS & Algo
Some design problem

I applied via LinkedIn and was interviewed in Mar 2021. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Eh cache design , irctc low level and high level design. Few problem solving questions on matrix & arrays.

Interview Preparation Tips

Interview preparation tips for other job seekers - No spring,java,microservices pure problem solving & system design interview. People here are from tier 1 colg background so they usually prefer problem solving questions.

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I applied via Campus Placement and was interviewed before Mar 2020. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. What is the most challenging situation you have been through in your career?

Interview Preparation Tips

Interview preparation tips for other job seekers - To ace an interview you need to be a good listener as much as a good speaker. Try to listen and understand what the interviewer is asking and then reply. Never be in a hurry to answer, take time. If you did not understand what interviewer is asking simply ask him to repeat, pls don't presume anything and answer anything that comes to your mind. Most importantly never fake in an interview just try to be your best...

I applied via Naukri.com and was interviewed before May 2018. There were 5 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Questions are related to your past working experience and the position that you applied for Microwave Transmission related questions: What is Microwave and types What is fadind and it's resolution steps D...
  • Q2. PDH-SDH related questions- Difference between PDH and sdh Frame structure of sdh High order and low order bytes and alarms related to bytes Alarms in sdh Ethernet over sdh What is GFP, ENCAPSULATION, VCAT,...
  • Q3. Generally your current work related questions Why you want to change your job What is your expectations from new job Where you seeing your self after 5 year's Current salary and expectations

Interview Preparation Tips

Round: HR Round
Experience: Related to offer they are giving and related cross questions

General Tips: I had been interviewed with Huawei in 2016 and total 2 rounds was there for me. Questions I already had shared, go through it.

I got my offer letter after 1 month after HR discussion but please follow up with HR team once you get call for your selection
Skills: Ethernet over SDH, SDH, Microwave, Technical Knowledge(ML, Microwave, Communication, Presentation Skills
Duration: 1-3 Months

I applied via Walk-in and was interviewed before May 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. How you can do sales
  • Ans. 

    To do sales effectively, you need to understand your product, build relationships, communicate persuasively, and follow up consistently.

    • Understand your product: Know the features, benefits, and unique selling points of what you're selling.

    • Build relationships: Establish trust and rapport with potential customers by listening, empathizing, and addressing their needs.

    • Communicate persuasively: Clearly articulate how your p...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - The interview wanted to test both my knowledge and communication skill

Interview Questionnaire 

3 Questions

  • Q1. How many time u take any update shuttering system?
  • Ans. 

    The question is unclear and lacks context.

    • Please provide more information about the 'update shuttering system'.

    • Specify the time frame for the updates.

    • Clarify the purpose or objective of the updates.

    • Provide any relevant examples or scenarios.

  • Answered by AI
  • Q2. Why u want to work as a execution engineer? Why not any special team such as formwork team,or quality team?
  • Ans. 

    I want to work as an execution engineer because I enjoy the challenge of overseeing and coordinating all aspects of a project.

    • As an execution engineer, I would have the opportunity to work on a variety of projects and oversee all aspects of their execution.

    • I enjoy the challenge of coordinating different teams and ensuring that everything runs smoothly.

    • While working on a formwork or quality team would be valuable experi...

  • Answered by AI
  • Q3. As contractor farm Engineer in RCC which is most important? 1) Reinforcements 2)Formwork 3)Concrete And why?
  • Ans. 

    Concrete is the most important as it provides the strength and durability to the structure.

    • Concrete is the backbone of any RCC structure.

    • It provides the strength and durability to the structure.

    • Reinforcements and formwork are important too, but without concrete, they are useless.

    • Proper mix design and curing of concrete are crucial for the longevity of the structure.

  • Answered by AI

I applied via Company Website and was interviewed before Apr 2020. There were 4 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Load distribution under rigid and flexible footings,water tank design, steel foundation design
  • Q2. Mix design of concrete, btech project
  • Ans. 

    Mix design of concrete and BTech project

    • Mix design involves determining the proportions of cement, water, aggregates, and admixtures to achieve desired properties of concrete

    • Factors like strength, workability, durability, and cost are considered while designing the mix

    • BTech project can involve studying the effect of different mix designs on properties of concrete or developing a new mix design

    • Examples of BTech projects...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - be well prepared with basics and if you are already experienced, be prepared with site knowledge

I applied via Campus Placement and was interviewed before Jun 2021. There were 4 interview rounds.

Round 1 - Coding Test 

2 coding questions (1 DP + 1 Graph)

Round 2 - One-on-one 

(1 Question)

  • Q1. Leetcode easy, medium questions on tree, dp
Round 3 - One-on-one 

(2 Questions)

  • Q1. 1 coding question on string (hard).
  • Q2. OS, DBMS, OOPs questions
Round 4 - HR 

(1 Question)

  • Q1. Usual HR questions + 2 puzzles question

Interview Preparation Tips

Interview preparation tips for other job seekers - Make sure to have clear understanding of Computer Science subjects OS, DBMS, OOPs

I applied via Walk-in and was interviewed before Aug 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. About my last job description

Interview Preparation Tips

Interview preparation tips for other job seekers - Says limited and point to point thing, and be clear....

I applied via Referral and was interviewed in Jul 2020. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. No technical questions
  • Q2. BASIC INTERVIEW LIKE L1

Interview Preparation Tips

Interview preparation tips for other job seekers - No job guaranty, Non technical HOD, Unmanaged Infra

Airtel X- Labs Interview FAQs

How to prepare for Airtel X- Labs Lead Engineer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Airtel X- Labs. The most common topics and skills that interviewers at Airtel X- Labs expect are Java, MVC, MongoDB, NoSQL and OOPS.
What are the top questions asked in Airtel X- Labs Lead Engineer interview?

Some of the top questions asked at the Airtel X- Labs Lead Engineer interview -

  1. CAP theo...read more
  2. Eh cache design , irctc low level and high level design. Few problem solving qu...read more
  3. Deadlock c...read more

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₹20 L/yr - ₹40 L/yr
92% more than the average Lead Engineer Salary in India
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