University Institute of Chemical Technology Interview Questions and Answers

Q1. Tell me about yourself Why do you want this job What are your strengthen Why should we hire you
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Q1. Your technical interview may also involve an onsite or remote challenge such as a whiteboard design challenge or a live coding test technical interviews enable interviewers to evaluate a candidate critical...read more
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1 understand the concept : learn the underlying concepts and formulas
2 practice regularly : solve similar questions to build familiarity

What is your education

For effective job seeking focus on building a strong online presence through a polished linkedin profile tailoring your resume to each job thoroughly researchers companies before applying practicing interview answer actively networking attending career fairs and sending thank you notes interviews

Q1. API Gateway implementation
Ans. 
API Gateway implementation is a centralized service that routes, manages, and secures API calls.
• API Gateway acts as a single entry point for all API calls

• It can handle authentication, rate limiting, caching, and request/response transformations

• Examples include AWS API Gateway, Apigee, Kong
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Q2. Circuit breaker implementation
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Circuit breaker is a design pattern used to prevent system overload by temporarily stopping requests to a failing service.
• Circuit breaker monitors requests to a service and opens when the service fails repeatedly.

• It helps prevent cascading failures and allows the system to gracefully degrade.

• Once the circuit breaker is open, it can periodically check if the service has recovered before allowing requests again.
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Q3. What is deadlock? How to avoid it?
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Deadlock is a situation in which two or more processes are unable to proceed because each is waiting for the other to release a resource.
• Avoid circular wait by ensuring processes request resources in the same order.

• Prevent hold and wait by requiring processes to request all needed resources at once.

• Implement a timeout mechanism to break potential deadlocks.

• Use resource allocation graphs to detect and prevent deadlocks.

• ...read more
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Q4. Explain equals() method
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The equals() method is used to compare the contents of two objects for equality.
• The equals() method is a method of the Object class in Java.

• It is used to compare the contents of two objects for equality.

• The default implementation of equals() in the Object class compares memory addresses, so it is often overridden in custom classes to compare content.

• Example: String class overrides equals() method to compare the content
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Q5. How mongodb was integrated in your application?
Ans. 
MongoDB was integrated in the application by using the official Java driver and configuring connection settings.
• Used the official MongoDB Java driver to interact with the database

• Configured connection settings such as host, port, database name, and authentication credentials

• Implemented CRUD operations using MongoDB Java driver methods

• Utilized MongoDB aggregation framework for complex queries
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Q6. What is hibernate?
Ans. 
Hibernate is an open-source Java framework that simplifies the development of database interactions in Java applications.
• Hibernate is an Object-Relational Mapping (ORM) tool that maps Java objects to database tables.

• It provides a way to perform database operations using Java objects instead of writing SQL queries.

• Hibernate handles the mapping of Java classes to database tables and vice versa, as well as the generation ...read more
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Q7. Runnable vs Callable interface
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Runnable is a functional interface with a single run() method, while Callable is a functional interface with a single call() method.
• Runnable is used for tasks that do not return a result, while Callable is used for tasks that return a result.

• Callable can throw checked exceptions, while Runnable cannot.

• Callable returns a Future object, which can be used to retrieve the result of the computation.

• Example: Runnable - execu...read more
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Q8. Which type of data is returned by Callable interface?
Ans. 
The Callable interface in Java returns a Future object.
• Callable interface returns a Future object which represents the result of a computation that may not be available yet.

• The Future object can be used to retrieve the result of the computation, check if it is done, or cancel the computation.

• Example: Callable<Integer> task = () -> { return 42; }
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Q9. HashMap internal working
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Q10. Concurrent HashMap internal working
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Q11. How to monitor health of your application?
Ans. 
Monitor application health using metrics, logs, alerts, and performance monitoring tools.
• Use monitoring tools like Prometheus, Grafana, or New Relic to track key metrics such as CPU usage, memory usage, response times, and error rates.

• Implement logging to record important events and errors in your application. Use tools like ELK stack (Elasticsearch, Logstash, Kibana) for log analysis.

• Set up alerts to notify you of any...read more
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Q12. How to call an API in a Microservice architecture?
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To call an API in a Microservice architecture, use HTTP requests or messaging protocols like gRPC.
• Use HTTP requests to communicate between microservices

• Implement RESTful APIs for easy integration

• Leverage messaging protocols like gRPC for efficient communication

• Consider using service discovery mechanisms for dynamic API calls
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Q13. Explain Profiles
Ans. 
Profiles in Java are configurations that define the capabilities of a Java platform.
• Profiles allow developers to target specific types of devices or applications.

• They help in reducing the size of the Java runtime environment by including only the necessary APIs.

• Examples include Java SE Embedded Profile for embedded devices and Java SE Compact Profile for resource-constrained environments.
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Q14. What is OpenFeign, and how is it used in microservices architecture?
Ans. 
OpenFeign is a declarative web service client used to simplify the process of making HTTP requests in microservices architecture.
• OpenFeign allows developers to define RESTful web services as interfaces and automatically generate the necessary implementation code.

• It integrates seamlessly with Spring Cloud and other microservices frameworks to facilitate communication between services.

• OpenFeign supports features like loa...read more
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Q15. What is the implementation process for service registry and discovery?
Ans. 
Service registry and discovery involves registering services and allowing clients to discover and connect to them.
• Implement a service registry where services can register themselves with metadata

• Use a service discovery mechanism for clients to find and connect to services

• Implement health checks to ensure services are available and healthy

• Use a load balancer to distribute traffic among multiple instances of a service
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Q16. What are Spring boot actuators?
Ans. 
Spring Boot Actuators are built-in tools that provide insight into the running application.
• Actuators expose various endpoints to monitor and manage the application.

• They can be used to check health, metrics, environment details, and more.

• Examples include /actuator/health, /actuator/metrics, and /actuator/env.
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Q17. Synchronous vs Asynchronous communication
Ans. 
Synchronous communication is blocking, while asynchronous communication is non-blocking.
• Synchronous communication waits for a response before continuing, while asynchronous communication does not wait.

• Examples of synchronous communication include traditional function calls, while examples of asynchronous communication include callbacks and promises.

• Synchronous communication can lead to performance issues if there are d...read more
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Q18. Explain Synchronized keyword
Ans. 
Synchronized keyword is used in Java to control access to shared resources by multiple threads.
• Synchronized keyword can be applied to methods or code blocks to ensure only one thread can access the synchronized code at a time.

• It prevents race conditions and ensures thread safety by creating a lock on the object or class.

• Example: synchronized void myMethod() { // synchronized code block }
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Q19. What are the consequences of excessively using synchronized blocks and methods in Java?
Ans. 
Excessive use of synchronized blocks and methods in Java can lead to performance issues and potential deadlocks.
• Decreased performance due to increased contention for locks

• Potential deadlocks if multiple threads are waiting for each other to release locks

• Increased complexity and difficulty in debugging and maintaining code

• Use synchronized sparingly and consider alternatives like ConcurrentHashMap or Lock interface
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Q20. How can you determine the number of threads needed for your application?
Ans. 
The number of threads needed for an application can be determined based on factors like the type of tasks, hardware resources, and performance requirements.
• Consider the type of tasks your application needs to perform - CPU-bound tasks may benefit from more threads, while I/O-bound tasks may not.

• Take into account the hardware resources available - more threads may be beneficial on a multi-core processor compared to a si...read more
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Q21. Explain Executor framework
Ans. 
Executor framework is a framework in Java that provides a way to manage and execute tasks asynchronously.
• Allows for managing thread execution in a more efficient way

• Provides a way to decouple task submission from task execution

• Supports various types of executors like ThreadPoolExecutor and ScheduledExecutorService

• Helps in handling tasks concurrently and asynchronously
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Q22. Explain BlockingQueue
Ans. 
BlockingQueue is an interface in Java that represents a queue which supports operations that wait for the queue to become non-empty when retrieving an element and wait for space to become available in the queue when adding an element.
• BlockingQueue is part of the java.util.concurrent package.

• It is used for implementing producer-consumer scenarios where multiple threads are involved.

• Methods like put() and take() are used...read more
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Q1. Why did you leave your previous company?
Ans. 
Seeking new challenges and opportunities for growth.
• Desire for career advancement

• Looking for new challenges

• Seeking better work-life balance

• Company restructuring or downsizing

• Relocation to a new area
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Q2. Other basic questions asked regarding the relevant skills and technologies I have worked with.
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Q1. For job seekers, key advice includes: tailoring your resume to each job application, actively networking, researching companies thoroughly before applying, practicing interview skills, following up with po...read more
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Q1. For job seekers, key advice includes: tailoring your resume to each job application, actively networking, researching companies thoroughly before applying, practicing interview skills, following up with po...read more
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Q1. How much experience you have into froud management?
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Q2. H uch money you can take from parents?
Ans. 
The amount of money that can be taken from parents should be reasonable and within their means.
• It is important to consider the financial situation of the parents before asking for money.

• Discuss the specific amount needed and the purpose for which it will be used.

• Ensure that the parents are comfortable with the amount and are willing to provide support.

• Avoid pressuring or manipulating parents into giving more money than...read more
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Q1. State Head sis equal to Business Development Executive.
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Q2. State Head is not aware about the product.
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Q1. Tell me something about yourself?
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Q2. Why do you want to work with our organization?
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Q3. Why are you interested in sales?
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Q1. Why you left your previous organization?
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Q2. What was your previous company KRAs? And target achievement.
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Q3. Mock call?
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Q1. About your self
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Q2. What is your family background?
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Q1. What is your level of knowledge in Excel?
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Q1. What are your salary expectations?
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Q1. How many times give me opportunity?
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Q2. What was my Duty on project?
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Q1. How many years project?
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Q2. After project completion, what are you joining to me maintanac of civil work?
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Q1. Till date my salary is 45000 per month ,how many give me salary?
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Q2. After interview complete how many day I am joining?
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Create a plan with xyz budget and showcase optimisation skills

Q1. Total years of work ex
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Q2. Expertise in the domain applied for
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Q3. Any relevant contacts in the industry
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Yes, I have a strong network of contacts in the industry including suppliers, vendors, and industry professionals.
• I have built relationships with key suppliers who provide quality products at competitive prices.

• I regularly attend industry events and conferences to network with other professionals and stay updated on industry trends.

• I am a member of industry-specific organizations where I have connected with industry le...read more
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Q1. Salary discussion and negation scope
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Q2. Variable pay discussion
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Q1. Next company name
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Q2. What are you post
Ans. 
Backend and office assistant
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Q3. What is your salary expectations
Ans. 
2lakh annual income
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Q4. What is your qualifications
Ans. 
Qualification graduate
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Q5. What is you post
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