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Havells IOT Engineer Interview Questions and Answers

Updated 28 Nov 2024

Havells IOT Engineer Interview Experiences

1 interview found

IOT Engineer Interview Questions & Answers

user image Anonymous

posted on 28 Nov 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Contained coding and general quant aptitude

Round 2 - Technical 

(2 Questions)

  • Q1. What is padding in ES
  • Ans. 

    Padding in ES refers to adding extra bits to the data being transmitted to ensure it meets a certain block size.

    • Padding is commonly used in encryption algorithms to ensure that the data being encrypted is a multiple of the block size.

    • There are different types of padding such as zero padding, PKCS#5 padding, and ANSI X.923 padding.

    • Padding can also be used in communication protocols to ensure that data packets are of a c

  • Answered by AI
  • Q2. What is difference between microprocessor and microcontroller
  • Ans. 

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

    • Microprocessor is used in general-purpose computing devices like computers, 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, AMD Ryzen, ...

  • Answered by AI

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected
Round 1 - HR 

(4 Questions)

  • Q1. A and B invest in a business in the ratio 3 : 2. If 5% of the total profit goes to charity and A's share is Rs. 855, the total profit is: Rs. 1425 Rs. 1500 Rs. 1537.50 Rs. 1576
  • Q2. How does this position contribute to the company’s long-term goals?
  • Q3. A, B and C jointly thought of engaging themselves in a business venture. It was agreed that A would invest Rs. 6500 for 6 months, B, Rs. 8400 for 5 months and C, Rs. 10,000 for 3 months. A wants to be the ...
  • Q4. How would you describe the company culture, and what initiatives do you have to foster it?
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

C & C++ programming coding

Round 2 - Technical 

(2 Questions)

  • Q1. Project Overview
  • Q2. Key Skills in past organisation
Round 3 - HR 

(2 Questions)

  • Q1. Where you see yourself after 5 years
  • Q2. CTC and Joining days
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed before Nov 2023. There were 3 interview rounds.

Round 1 - Aptitude Test 

Apptitude test was quite easy to attend

Round 2 - Coding Test 

Hackerrank platform was used for coding round.

Round 3 - HR 

(2 Questions)

  • Q1. Salary expectations
  • Q2. Willing to relocate
  • Ans. 

    Yes, I am willing to relocate for the right opportunity.

    • I am open to relocating for a position that aligns with my career goals and offers growth opportunities.

    • I have relocated in the past for job opportunities and have found it to be a positive experience.

    • I understand that relocation may come with challenges, but I am prepared to adapt and thrive in a new environment.

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-

I applied via Referral and was interviewed before Mar 2023. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Sql and oracle query,design pattern,solid principles,

Interview Preparation Tips

Interview preparation tips for other job seekers - Learn the basics
Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I applied via Walk-in and was interviewed before Sep 2023. There were 2 interview rounds.

Round 1 - Aptitude Test 

Easy to moderate aptitude mcq questions.

Round 2 - Coding Test 

Easy to moderate 6 coding problems.

Interview Questionnaire 

14 Questions

  • Q1. What are the benefits of the microservices?
  • Ans. 

    Microservices offer benefits such as scalability, flexibility, and easier maintenance.

    • Scalability: Microservices can be scaled independently, allowing for better resource utilization.

    • Flexibility: Microservices can be developed and deployed independently, allowing for faster iteration and innovation.

    • Easier maintenance: Microservices are smaller and more focused, making it easier to identify and fix issues.

    • Improved fault...

  • Answered by AI
  • Q2. Differences between spring and spring boot?
  • Ans. 

    Spring is a framework while Spring Boot is an extension of Spring.

    • Spring Boot provides auto-configuration and embedded servers.

    • Spring Boot reduces boilerplate code and simplifies application setup.

    • Spring Boot is opinionated and provides defaults for configuration.

    • Spring Boot is ideal for microservices and standalone applications.

    • Spring is more flexible and customizable than Spring Boot.

  • Answered by AI
  • Q3. Have you configured service registry?
  • Ans. 

    Yes, I have configured service registry.

    • I have experience with service registry tools like Consul and Eureka.

    • I have configured service registry for microservices architecture.

    • I have implemented service discovery and load balancing using service registry.

    • I have used service registry to manage service endpoints and metadata.

  • Answered by AI
  • Q4. What is the use of profile registry? how can you configured in your project
  • Ans. 

    Profile registry is used to store user profiles and their preferences in a centralized location.

    • Profile registry is used to manage user profiles and preferences in a centralized location

    • It can be configured in a project by defining the schema for user profiles and preferences

    • Profile registry can be accessed through APIs or SDKs

    • It can be used to personalize user experience and provide targeted content

    • Examples of profile...

  • Answered by AI
  • Q5. How spring boot work internally?
  • Ans. 

    Spring Boot is a framework that simplifies the development of Java applications by providing pre-configured settings and dependencies.

    • Spring Boot uses an embedded server to run applications.

    • It provides auto-configuration for commonly used libraries and frameworks.

    • Spring Boot uses Spring Framework's core features like Inversion of Control (IoC) and Aspect Oriented Programming (AOP).

    • It uses annotations to configure and c...

  • Answered by AI
  • Q6. If a microservice is down, then how can you handle that situation?
  • Ans. 

    We can handle the situation by implementing fault tolerance mechanisms.

    • Implementing circuit breakers to prevent cascading failures

    • Using load balancers to redirect traffic to healthy instances

    • Implementing retry mechanisms to handle temporary failures

    • Using monitoring tools to detect and alert on failures

    • Implementing graceful degradation to provide partial functionality

    • Using backups or replicas to ensure high availability

  • Answered by AI
  • Q7. What kind of security added in your project and how?
  • Q8. What are the transactions used in your projects?
  • Q9. What are the spring boot annotations used in your project?
  • Ans. 

    We use @RestController, @RequestMapping, @Autowired, @Service, @Repository, @Transactional, @GetMapping, @PostMapping, @PutMapping, @DeleteMapping annotations in our Spring Boot project.

    • @RestController - used to define RESTful web services

    • @RequestMapping - used to map HTTP requests to handler methods

    • @Autowired - used for automatic dependency injection

    • @Service - used to define a service layer component

    • @Repository - used...

  • Answered by AI
  • Q10. What is the use of spring data jpa?
  • Ans. 

    Spring Data JPA simplifies the implementation of data access layer in Spring applications.

    • Provides a framework for easily creating repositories and queries

    • Reduces boilerplate code for data access layer

    • Supports pagination and sorting of data

    • Integrates with Spring's transaction management

    • Example: @Repository interface UserRepository extends JpaRepository {}

  • Answered by AI
  • Q11. What are the collection used in your project?
  • Q12. Can you tell me how hash map internally work?
  • Ans. 

    A hash map is a data structure that uses a hash function to map keys to values in constant time.

    • Hash map uses an array to store key-value pairs

    • The hash function is used to convert the key into an index of the array

    • Collisions occur when two keys map to the same index, which is resolved using chaining or open addressing

    • Retrieving a value from a hash map involves computing the hash of the key and then looking up the corre...

  • Answered by AI
  • Q13. Differences between comparable and comparator?
  • Ans. 

    Comparable is an interface used for natural ordering while Comparator is an interface used for custom ordering.

    • Comparable is implemented by the class itself while Comparator is implemented by a separate class.

    • Comparable provides a single method compareTo() while Comparator provides a single method compare().

    • Comparable is used for sorting elements in a collection while Comparator is used for custom sorting.

    • Example: Stri...

  • Answered by AI
  • Q14. Tell me about concurrent Hash map?
  • Ans. 

    Concurrent Hash Map is a thread-safe implementation of a hash map.

    • It allows multiple threads to access and modify the map concurrently.

    • It uses a technique called lock striping to achieve high concurrency.

    • It is part of the java.util.concurrent package in Java.

    • Example: ConcurrentHashMap in Java.

  • Answered by AI

Skills evaluated in this interview

Interview Questionnaire 

1 Question

  • Q1. Oops concepts

Interview Preparation Tips

Interview preparation tips for other job seekers - Basic opps concepts and data structures questions

I applied via Walk-in and was interviewed in Dec 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. 5s ,kaizen implement, production planning man power handling,takt time,cycle time,tpm,....

Interview Preparation Tips

Interview preparation tips for other job seekers - Motivate and self confidence never give negative thought don't be make emotional

Havells Interview FAQs

How many rounds are there in Havells IOT Engineer interview?
Havells interview process usually has 2 rounds. The most common rounds in the Havells interview process are Aptitude Test and Technical.
How to prepare for Havells IOT 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 Havells. The most common topics and skills that interviewers at Havells expect are IoT, API, C, Cloud and Cloud Integration.
What are the top questions asked in Havells IOT Engineer interview?

Some of the top questions asked at the Havells IOT Engineer interview -

  1. what is difference between microprocessor and microcontrol...read more
  2. What is padding in...read more

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Havells IOT Engineer Interview Process

based on 1 interview

Interview experience

4
  
Good
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