Coforge Interview Questions, Process, and Tips

Q1. Java, Spring Boot, Kafka, MySQL, Microservices
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Q1. It was screening
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Q2. Introduction. Education and experience
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Q1. Question about Active Directory
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Q2. Question about outlook and teams
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Q3. How to connect printer on network
Ans. 
To connect a printer on a network, you need to ensure the printer is compatible with the network, install the printer drivers, and configure the printer settings.
• Check if the printer is compatible with the network (wired or wireless)

• Connect the printer to the network using an Ethernet cable or by connecting to the wireless network

• Install the printer drivers on the computer or device from which you want to print

• Configur...read more
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Q4. What is BSOD, reason and resolution
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BSOD stands for Blue Screen of Death. It is a Windows operating system error screen that appears when the system encounters a critical error.
• BSOD is a stop error screen that is displayed when the Windows operating system encounters a system crash or a fatal error.

• It is often caused by hardware or software issues, such as faulty drivers, incompatible software, or hardware failures.

• The blue screen contains error codes an...read more
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Q1. It was a Clint round
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Q1. React components life cycle
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Q2. Javascript splice and slice difference
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splice is used to add/remove elements from an array, while slice is used to create a new array from a portion of an existing array.
• splice modifies the original array, while slice does not

• splice can add elements to an array at a specific index

• slice can extract a portion of an array without modifying the original array

• splice returns the removed elements, while slice returns the extracted elements
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Q3. Given array of objects [{model: apple , price: 2000}, {model : apple , price : 1000}, {model: samsung , price: 500}] Return output as {apple : 1000, samsung :500} Ie flatten the array to map if model i...read more
Ans. 
Flatten array of objects to map with minimum price for each model
• Iterate through the array and create a map with model as key and minimum price as value

• If model already exists in map, update the value with minimum price

• Return the map as the output
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Q4. Java Restful webseries, separation of layers controller , service , repository
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Q5. Given employee class find 10th Max. Salary
Ans. 
To find the 10th highest salary for a given employee class.
• Sort the salaries in descending order for the specific employee class.

• Skip duplicates and find the 10th unique salary.

• Return the 10th salary as the 10th Max. Salary.
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Q6. Given string : I am java developer return 4 non repeting character
Ans. 
Find 4 non-repeating characters in the given string.
• Create a hashmap to store character frequencies

• Iterate through the string and count the occurrences of each character

• Return the first 4 characters with frequency 1 as non-repeating characters
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Q7. SQL find 10 max salary from employee table , can use offset and limit Postgresql function
Ans. 
Use SQL query with OFFSET and LIMIT to find 10 max salaries from employee table in PostgreSQL.
• Use ORDER BY clause to sort salaries in descending order

• Use LIMIT 10 to get only the top 10 salaries

• Use OFFSET 0 to start from the beginning of the sorted list
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Q8. Thread pool executer fire 3 method in parallel and wait for all 3 to complete
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Use a thread pool executor to execute 3 methods in parallel and wait for all 3 to complete.
• Create a thread pool executor with a fixed number of threads.

• Submit the 3 methods as tasks to the executor using the `submit()` method.

• Use the `invokeAll()` method to wait for all tasks to complete.

• Handle any exceptions thrown by the tasks.

• Example: ThreadPoolExecutor executor = new ThreadPoolExecutor(3, 3, 0L, TimeUnit.MILLISECON...read more
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Q9. @async annotation usage how to make async api
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The @async annotation is used to make an API asynchronous.
• Add the @async annotation to the method declaration

• Use CompletableFuture or a similar mechanism to handle the asynchronous execution

• Ensure the API returns a CompletableFuture or a similar asynchronous result
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Q10. Lazy loading of beans in spring boot
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Lazy loading of beans in Spring Boot allows beans to be loaded only when they are needed, improving performance.
• Lazy loading can be achieved by using @Lazy annotation on bean definitions

• Lazy loading can also be configured in application.properties using spring.main.lazy-initialization=true

• Lazy loading is useful for optimizing application startup time and memory usage
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Q11. Spring boot beans life cycle
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Coding programm on the tech stack
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Q1. All technical question and discussion on challenges and expertise related to the IT industry expertise
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Q1. Technical Questions related Recent project
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Q1. Technical round2
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Q1. Project manager round
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Q1. Compensation discussion
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Q1. Bash shell scripting
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Q2. Server creation
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Q1. Salay discussion
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Q2. Sift intro
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