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Havells Software Engineer Interview Questions and Answers
Havells Software Engineer Interview Experiences
3 interviews found
D D
I applied via Campus Placement and was interviewed in Jul 2024. There were 2 interview rounds.
They asked to find the elements which are present more than once. I solved it using map in c++
(3 Questions)
- Q1. Explain about your favorite algorithm
- Ans.
My favorite algorithm is Dijkstra's algorithm for finding the shortest path in a graph.
Dijkstra's algorithm is a greedy algorithm that finds the shortest path between nodes in a graph.
It works by maintaining a priority queue of nodes to visit next, updating the shortest distance to each node as it explores the graph.
The algorithm is commonly used in routing and network optimization.
Example: Finding the shortest route b...
- Q2. Tell about different types of deadlocks
- Ans.
Deadlocks occur when two or more processes are unable to proceed because each is waiting for the other to release resources.
1. Resource Deadlock: Occurs when processes hold resources while waiting for others. Example: Process A holds Resource 1 and waits for Resource 2, while Process B holds Resource 2 and waits for Resource 1.
2. Communication Deadlock: Happens in systems where processes wait for messages from each oth...
- Q3. Tell about you project.
- Ans.
Developed a web application for online shopping with user authentication and payment gateway integration.
Implemented user authentication using JWT tokens
Integrated Stripe API for payment processing
Designed responsive UI using React and Bootstrap
Selected
I appeared for an interview in Jun 2024.
Electrical engineering
Power system machine power electronics
Interview Preparation Tips
Selected
I applied via Referral and was interviewed in Nov 2022. There were 4 interview rounds.
There were Aptitude Questions and 2 Easy Level Coding Questions.
(1 Question)
- Q1. They will ask us our favorite subject and questions will be based on that: Mine was Data Science. 1.They asked me about my paper Publication 2.Code for quick sort(Any language) 3.What is Hypothesis Testing...
(1 Question)
- Q1. 1.What is paging? 2.Time Series Analysis 3.What is Gradient Descent? Etc..
- Ans.
1. Paging is a memory management technique used by operating systems to manage memory allocation for processes.
Paging divides memory into fixed-size pages and allocates them to processes as needed.
It allows for efficient use of memory and prevents fragmentation.
Page tables are used to keep track of which pages are allocated to which processes.
When a process needs to access a page that is not currently in memory, a page...
Interview Preparation Tips
- Computer Networking
- Operating Systems
- Data Structures
Skills evaluated in this interview
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I applied via Referral and was interviewed before Mar 2023. There was 1 interview round.
(1 Question)
- Q1. Sql and oracle query,design pattern,solid principles,
Interview Preparation Tips
Selected
I applied via Company Website and was interviewed in Jun 2024. There were 2 interview rounds.
Tomarrow, power system
Machine power system drive
Software Engineer Interview Questions & Answers
CG Power and Industrial Solutions
Anonymous
posted on 6 Nov 2024
Selected
I applied via LinkedIn and was interviewed before Nov 2023. There were 3 interview rounds.
Apptitude test was quite easy to attend
Hackerrank platform was used for coding round.
(2 Questions)
- Q1. Salary expectations
- Q2. Willing to relocate
Havells HR Interview Questions
Software Engineer Interview Questions & Answers
CG Power and Industrial Solutions
Anonymous
posted on 24 Mar 2021
Interview Questionnaire
14 Questions
- Q1. What are the benefits of the microservices?
- Q2. Differences between spring and spring boot?
- 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.
- 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...
- Q5. How spring boot work internally?
- 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
- 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...
- 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
- Q11. What are the collection used in your project?
- Q12. Can you tell me how hash map internally work?
- 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...
- Q14. Tell me about concurrent Hash map?
Skills evaluated in this interview
Senior Engineer Interview Questions & Answers
CG Power and Industrial Solutions
Rahul Negi
posted on 24 Apr 2021
I applied via Naukri.com and was interviewed before Apr 2020. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. About circuit breaker, transformer.
- Q2. Single line diagrams, layout, substation calculation.
Interview Preparation Tips
I applied via Company Website and was interviewed in Jul 2021. There were 3 interview rounds.
(1 Question)
- Q1. Tell me about yourself.
Interview Preparation Tips
Selected
I appeared for an interview in Dec 2022.
(6 Questions)
- Q1. How do u configure switch?
- Q2. What is L2 and L3 Switch and it's differences
- Ans.
L2 and L3 switches are network devices used for packet switching. L2 operates at the data link layer and L3 at the network layer.
L2 switch operates at the data link layer and forwards packets based on MAC addresses
L3 switch operates at the network layer and forwards packets based on IP addresses
L2 switch is used for LAN networks while L3 switch is used for both LAN and WAN networks
L2 switch is faster than L3 switch as ...
- Q3. What is MPLS, where it is used
- Ans.
MPLS is a protocol used for efficient packet forwarding in a network. It is used in WANs and service provider networks.
MPLS stands for Multiprotocol Label Switching
It is used to improve the speed and efficiency of network traffic routing
MPLS uses labels to identify the path that packets should take through the network
It is commonly used in WANs and service provider networks to provide Quality of Service (QoS) and traff...
- Q4. Explain about VLANS and how do we create
- Q5. Why do we get hired
- Q6. What do u know about the company
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