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L&T Technology Services Testing Validation Engineer Interview Questions and Answers

Updated 24 Nov 2022

L&T Technology Services Testing Validation Engineer Interview Experiences

1 interview found

I applied via campus placement at Sri Vasavi Engineering College, Tadepalligudem and was interviewed before Nov 2021. 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 tips
Round 2 - Aptitude Test 

As test will be conducted on apptitude, reasoning, Mathematics & English. You have to score 60-80% in this round

Round 3 - Technical 

(3 Questions)

  • Q1. What are the domains that you're expertised in??
  • Q2. Explain about the projects that you have done during your academic?
  • Q3. Can you please write a C program for the given instructions
  • Ans. 

    C program for given instructions

    • Understand the instructions clearly before writing the program

    • Use appropriate data types and variables

    • Test the program with different inputs to ensure correctness

  • Answered by AI
Round 4 - HR 

(3 Questions)

  • Q1. Why did you chose this company??
  • Q2. Will you be able to work in any locations and shifts??
  • Q3. What is your career goal?

Interview Preparation Tips

Topics to prepare for L&T Technology Services Testing Validation Engineer interview:
  • Core Data
  • Problem Solving
  • Programmable Logic Controller
Interview preparation tips for other job seekers - Be Confident before attending for any interviews
Give your 100% efforts

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed in Oct 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. What is Black box testing
  • Ans. 

    Black box testing is a software testing method where the internal structure or code of the application being tested is not known to the tester.

    • Tester focuses on the functionality of the software without knowing its internal workings

    • Tests are based on requirements and specifications

    • Input data is provided and output is compared against expected results

    • Examples include system testing, acceptance testing, and regression te

  • Answered by AI
  • Q2. What is tuple in python
  • Ans. 

    A tuple in Python is an immutable collection of elements, similar to a list but cannot be changed once created.

    • Tuples are created using parentheses ()

    • Elements in a tuple can be of different data types

    • Tuples can be accessed using indexing or slicing

    • Tuples are faster than lists because they are immutable

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. What is hil in lab
  • Ans. 

    HIL stands for Hardware-in-the-Loop, a testing technique used in engineering to validate systems by simulating real-world conditions.

    • HIL involves connecting physical hardware components to a simulation environment to test their interactions.

    • It allows for testing complex systems in a controlled environment before deployment.

    • Examples include testing automotive control systems by connecting them to a simulated vehicle env...

  • Answered by AI
  • Q2. What is active and passive safety
  • Ans. 

    Active safety refers to features that help prevent accidents, while passive safety refers to features that protect occupants during a crash.

    • Active safety includes technologies like anti-lock brakes, traction control, and lane departure warning systems.

    • Passive safety includes features like airbags, seat belts, and crumple zones.

    • Active safety systems work to prevent accidents from happening, while passive safety systems ...

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
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 tips
Round 2 - Technical 

(3 Questions)

  • Q1. Software testing lifecycle
  • Q2. Testing methodologies
  • Q3. Embedded c and c based questions
Round 3 - One-on-one 

(2 Questions)

  • Q1. Process related to work
  • Q2. New ideas to streamline the work
  • Ans. 

    Introduce automation tools and establish clear communication channels

    • Implement automated testing to reduce manual effort and increase efficiency

    • Use collaboration tools like JIRA to track progress and communicate with team members

    • Establish clear guidelines and processes to avoid confusion and delays

    • Regularly review and update processes to ensure they are still effective

    • Encourage team members to share ideas and suggestio

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Preparing c based questions ,testing methodologies
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(4 Questions)

  • Q1. Python related questions for basic sorting arrays
  • Q2. Questions from opps concept
  • Q3. Linux question basic to mid level
  • Q4. Os and understanding of computer organisation
  • Ans. 

    Understanding of computer organization is essential for a Validation Engineer to ensure proper functioning of hardware and software systems.

    • Knowledge of computer architecture and components such as CPU, memory, and I/O devices

    • Understanding of how data is processed and stored within a computer system

    • Familiarity with computer organization principles like instruction set architecture and memory hierarchy

    • Ability to trouble...

  • Answered by AI
Round 2 - HR 

(2 Questions)

  • Q1. Behavioral questions
  • Q2. Normal question from current knowledge

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus ton python little bit more

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Manual testing ,automation testing
Round 2 - Coding Test 

Java python regression testing,SDLC

Round 3 - Technical 

(1 Question)

  • Q1. Java manual testing,SQl,C+++
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Questions from Semiconductor basics
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Sep 2023. There were 2 interview rounds.

Round 1 - One-on-one 

(4 Questions)

  • Q1. What is registers in computer system
  • Ans. 

    Registers are small, fast storage locations within the CPU used to store data temporarily during processing.

    • Registers are used to store data that is being processed by the CPU.

    • They are the fastest form of memory in a computer system.

    • Registers are used to hold instructions, memory addresses, and data.

    • Examples of registers include the program counter, accumulator, and general-purpose registers.

  • Answered by AI
  • Q2. What is bios in computer system
  • Ans. 

    BIOS stands for Basic Input/Output System, a firmware used to perform hardware initialization during the booting process of a computer system.

    • BIOS is a firmware that is stored on a chip on the computer's motherboard.

    • It is responsible for initializing and testing hardware components during the boot process.

    • BIOS provides the necessary instructions for the computer to start up and load the operating system.

    • It also provide...

  • Answered by AI
  • Q3. What is the difference between RAM and ROM
  • Ans. 

    RAM is volatile memory that stores data temporarily, while ROM is non-volatile memory that stores data permanently.

    • RAM stands for Random Access Memory and is used for temporary storage of data that can be read and written to.

    • ROM stands for Read-Only Memory and is used for permanent storage of data that can only be read from.

    • RAM loses its data when power is turned off, while ROM retains its data even when power is off.

    • E...

  • Answered by AI
  • Q4. Difference between Microprocessor and Microcontroller
  • Ans. 

    Microprocessor is a standalone CPU while microcontroller includes CPU, memory, and peripherals on a single chip.

    • Microprocessor is typically used in general-purpose computing applications, while microcontroller is used in embedded systems.

    • Microprocessor requires external components like memory and peripherals, while microcontroller has them integrated on the chip.

    • Examples of microprocessors include Intel Core i7, while ...

  • Answered by AI
Round 2 - HR 

(3 Questions)

  • Q1. What is your expected CTC
  • Ans. 

    My expected CTC is negotiable based on the role, responsibilities, and benefits offered.

    • My expected CTC is based on industry standards and my level of experience.

    • I am open to discussing the compensation package during the interview process.

    • I am looking for a competitive salary that reflects my skills and contributions to the team.

  • Answered by AI
  • Q2. Do you have previous experience
  • Ans. 

    Yes, I have previous experience in post silicon validation.

    • I have worked as a Post Silicon Validation Engineer for 3 years at XYZ company

    • I have experience in developing validation test plans and executing them

    • I have worked on debugging and troubleshooting silicon issues

    • I have experience in using lab equipment such as oscilloscopes and logic analyzers

  • Answered by AI
  • Q3. Tell me about yourself
  • Ans. 

    I am a dedicated and detail-oriented Post Silicon Validation Engineer with a strong background in testing and troubleshooting semiconductor devices.

    • Experienced in developing validation plans and test cases

    • Proficient in using lab equipment such as oscilloscopes and logic analyzers

    • Skilled in debugging and analyzing test results to identify issues

    • Familiar with programming languages like Python and C for test automation

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident with your learning job will follow you

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - HR 

(3 Questions)

  • Q1. What is the difference between usb 2.0 and 3.0
  • Ans. 

    USB 3.0 is faster than USB 2.0 and has improved power management capabilities.

    • USB 2.0 has a maximum data transfer rate of 480 Mbps, while USB 3.0 has a maximum data transfer rate of 5 Gbps.

    • USB 3.0 is backward compatible with USB 2.0 devices, but USB 2.0 is not forward compatible with USB 3.0 devices.

    • USB 3.0 provides better power management, allowing devices to draw more power without exceeding the limit.

    • USB 3.0 ports a...

  • Answered by AI
  • Q2. Explain Software testing life cycle
  • Ans. 

    Software testing life cycle is a process of planning, designing, executing, and reporting on tests throughout the software development lifecycle.

    • 1. Requirement Analysis: Understanding the requirements and creating test cases.

    • 2. Test Planning: Defining the test strategy, scope, resources, and schedule.

    • 3. Test Design: Creating detailed test cases based on requirements.

    • 4. Test Execution: Running the test cases and reporti...

  • Answered by AI
  • Q3. Difference between waterfall and agile methodology
  • Ans. 

    Waterfall is a linear sequential approach to software development, while Agile is an iterative and incremental approach.

    • Waterfall follows a sequential process, with each phase completed before moving on to the next.

    • Agile involves breaking the project into small increments and delivering them in short iterations.

    • Waterfall is more rigid and requires detailed planning upfront, while Agile is more flexible and adaptable to...

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Regression testing
Round 2 - HR 

(1 Question)

  • Q1. Are u able to work in hardware domains

I applied via Walk-in and was interviewed in Oct 2022. There were 3 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 tips
Round 2 - Technical 

(2 Questions)

  • Q1. Basic to depth questions from the skill you mentioned in resume
  • Q2. Software testing life cycle?
  • Ans. 

    Software testing life cycle involves planning, designing, executing, and reporting on tests to ensure software quality.

    • STLC is a process that starts with test planning and ends with test closure.

    • It includes test design, test execution, and test reporting.

    • STLC is iterative and involves continuous improvement.

    • Examples of STLC models include Waterfall, Agile, and DevOps.

  • Answered by AI
Round 3 - Behavioral 

(1 Question)

  • Q1. What is Bug, error, black box testing?
  • Ans. 

    Bug is a defect in software, error is a mistake made by a programmer, black box testing is testing without knowledge of internal code.

    • Bug: a flaw in software that causes it to behave unexpectedly or incorrectly

    • Error: a mistake made by a programmer that results in incorrect code

    • Black box testing: testing without knowledge of the internal code, focusing on inputs and outputs

    • Example: entering invalid data into a form and ...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be through with your skills mentioned in the resume.

Skills evaluated in this interview

L&T Technology Services Interview FAQs

How many rounds are there in L&T Technology Services Testing Validation Engineer interview?
L&T Technology Services interview process usually has 4 rounds. The most common rounds in the L&T Technology Services interview process are Technical, HR and Resume Shortlist.

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