Capgemini SOA Developer Interview Questions and Answers

Q1. What is proxy service
Ans. 
A proxy service is an intermediary service that sits between a client and a target service, forwarding requests and responses.
• Proxy service acts as a middleman between client and target service

• It intercepts client requests and forwards them to the target service

• It also intercepts target service responses and sends them back to the client

• Proxy services can perform various tasks like security, caching, load balancing, et
Answered by AI
View 1 more answer
Q2. What is business service?
Ans. 
A business service is a logical representation of a repeatable business activity that has a specified outcome.
• Business services are designed to be reusable and can be composed to create larger business processes.

• They encapsulate the logic and functionality required to perform a specific business task.

• Examples of business services include customer registration, order processing, and payment processing.
Answered by AI
View 1 more answer
Q3. What is message flow?
Ans. 
Message flow refers to the sequence of steps or actions that a message goes through in a system.
• Message flow describes the path that a message takes from its source to its destination.

• It includes the processing and transformation of the message at various stages.

• Message flow can involve multiple components, such as message queues, routers, and adapters.

• Each step in the message flow may perform different operations on t...read more
Answered by AI
View 1 more answer
Q4. Can we use direct bindings to call soa composites?
Ans. 
Yes, direct bindings can be used to call SOA composites.
• Direct bindings provide a way to invoke SOA composites without using a mediator service.

• Direct bindings allow for direct communication between the client and the composite.

• Direct bindings are useful when there is no need for additional processing or transformation of data.

• Direct bindings can be used for synchronous as well as asynchronous communication.

• Direct bind...read more
Answered by AI
View 1 more answer
Q5. Where the file will go if there is an error while polling the file
Ans. 
The file will be moved to an error folder or directory.
• If there is an error while polling the file, it will be moved to an error folder or directory.

• This error folder or directory is typically specified in the configuration or settings of the polling mechanism.

• Moving the file to an error folder helps in identifying and handling the error separately from the successfully polled files.

• The error folder may also contain lo...read more
Answered by AI
View 1 more answer

Q1. How to call java code from osb
Ans. 
To call Java code from OSB, you can use Java Callout or Java Embedding activity.
• Java Callout activity allows you to invoke Java code from OSB proxy services.

• Java Embedding activity enables you to write Java code directly within the OSB pipeline.

• You can use Java classes, methods, and libraries in your code to perform desired operations.

• Passing input parameters and receiving output from Java code can be done using variab...read more
Answered by AI
View 1 more answer

An aptitude test is an assessment to measure a candidate mental aptitude/mental ability

Q1. Can you briefly Tell us about yourself?
Add your answer
Q2. What do you consider to be your strongest points?
Add your answer
Q3. Which programming languages do you use regularly in your work
Add your answer

A group discussion is a structured conversation in which participants share their ideas, perspectives, and solutions on a specific topic.

Q1. What motivates you to seek employment at Wipro?
Add your answer
Q2. What are your long-term career goals?
Add your answer

Assignment details refer to the specifics of an assignment, including any documents and/or emails or subsequent correspondence between the company and the client.

Refer to aptitude textbooks for easy and normal questions as anticipated.

Q1. How would you measure the stack space without using the task manager, when an application is running on a computer? Write an algorithm if possible!!!
Add your answer

Q1. Asked About current Projects
Add your answer
Q2. Asked to code 2 problems
Add your answer

Q1. Asked core java and microservices questions
Add your answer
Q2. Current project and my role
Add your answer

Q1. Introduced yourself?
Ans. 
I am a Senior Software Developer with 8 years of experience in full-stack development, specializing in Java and Angular.
• 8 years of experience in full-stack development

• Specialize in Java and Angular

• Strong problem-solving skills

• Experience with Agile methodologies

• Excellent communication and teamwork abilities
Answered by AI
Add your answer
Q2. What is the use of the yield() method in threading?
Ans. 
The yield() method in threading is used to give up the CPU and allow other threads to run.
• Allows other threads to run by giving up the CPU temporarily

• Useful for preventing one thread from dominating the CPU

• Can be used to implement cooperative multitasking
Answered by AI
Add your answer
Q3. What is hash collision and how it can be handled?
Ans. 
Hash collision occurs when two different inputs produce the same hash value. It can be handled by using techniques like chaining or open addressing.
• Hash collision is a common issue in hash tables where different keys produce the same hash value.

• One way to handle hash collisions is by using chaining, where each bucket in the hash table stores a linked list of key-value pairs with the same hash value.

• Another way to handl...read more
Answered by AI
Add your answer
Q4. What is use of Method reference instead lambada expressions in java 8?
Ans. 
Method references provide a more concise way to refer to methods by name instead of using lambda expressions.
• Method references can make code more readable and maintainable by reducing boilerplate code.

• They can be used to refer to static methods, instance methods, and constructors.

• Example: list.forEach(System.out::println) is equivalent to list.forEach(item -> System.out.println(item)).
Answered by AI
Add your answer
Q5. What is vertical and horizontal scaling in micro services?
Ans. 
Vertical scaling increases the capacity of a single server, while horizontal scaling adds more servers to distribute the load.
• Vertical scaling involves increasing the resources of a single server, such as CPU, RAM, or storage.

• Horizontal scaling involves adding more servers to distribute the load, often done through containerization or virtualization.

• Vertical scaling is limited by the capacity of a single server, while ...read more
Answered by AI
Add your answer
Q6. Write a java program to make upper case of first letter in the each word in the below String "i am a java programmer"?
Ans. 
Java program to capitalize first letter of each word in a given string
• Split the input string by space to get individual words

• Iterate through each word and capitalize the first letter

• Join the words back together to form the final capitalized string
Answered by AI
Add your answer

Q1. How the escalation matrix works in case of production defects?
Ans. 
Escalation matrix defines the process for escalating production defects based on severity and impact.
• Escalation matrix typically includes levels of escalation, responsible parties at each level, and criteria for escalating defects.

• For example, a Level 1 escalation may involve the development team, while a Level 2 escalation may involve senior management.

• Criteria for escalation may include severity of the defect, impact...read more
Answered by AI
Add your answer
Q2. What is your recent challenging task you have done in current project?
Ans. 
Implemented a real-time data synchronization feature between multiple servers.
• Designed a custom protocol for efficient data transfer

• Implemented server-side logic to handle data conflicts

• Utilized websockets for real-time communication
Answered by AI
Add your answer
Q3. Can you have ability to handle tasks individually?
Ans. 
Yes, I have the ability to handle tasks individually.
• I have a proven track record of successfully completing projects on my own.

• I am self-motivated and can prioritize tasks effectively.

• I have strong problem-solving skills which allow me to tackle challenges independently.
Answered by AI
Add your answer
Q4. Is it okay to give the Deliverables under pressure?
Ans. 
Yes, it is okay to give deliverables under pressure as long as quality is not compromised.
• Meeting deadlines is important in software development.

• Pressure can sometimes lead to increased focus and productivity.

• Communication with stakeholders about realistic timelines is key.

• Prioritizing tasks and managing time effectively can help in delivering under pressure.
Answered by AI
Add your answer

Q1. Introduce yourself?
Ans. 
I am a Senior Software Developer with 8 years of experience in developing web applications using various technologies.
• Experienced in full stack development

• Proficient in languages like Java, JavaScript, and Python

• Skilled in using frameworks like Spring, React, and Django

• Strong understanding of database management systems

• Familiar with Agile development methodologies
Answered by AI
Add your answer
Q2. Why your leaving current company?
Ans. 
Seeking new challenges and growth opportunities.
• Desire for career advancement

• Looking for new challenges

• Seeking better work-life balance

• Company restructuring or changes in management
Answered by AI
Add your answer
Q3. What is your current CTC and expected CTC?
Ans. 
My current CTC is $100,000 and my expected CTC is $120,000.
• Current CTC: $100,000

• Expected CTC: $120,000
Answered by AI
Add your answer
Q4. Do you have all the relevant documents of previous companies?
Ans. 
Yes, I have all relevant documents from previous companies.
• I have copies of offer letters, employment contracts, and performance reviews.

• I also have any relevant certifications or training records.

• I can provide references from previous employers if needed.
Answered by AI
Add your answer

3 coding problems
1 aptitude
1 puzzle
3 hrs duration

Q1. Sorting algorithms
Add your answer
Q2. 1 puzzle - burning candles
Add your answer

Q1. General discussion on resume
Add your answer
Q2. Few reasoning questions
Add your answer

Q1. About company work culture
Add your answer

Q1. Basic javascript questions
Add your answer
Q2. Difference between useCallback and useMemo hooks ?
Ans. 
useCallback is used to memoize functions, while useMemo is used to memoize values.
• useCallback is used to memoize functions to prevent unnecessary re-renders.

• useMemo is used to memoize the result of an expensive computation.

• Both hooks help optimize performance by memoizing values.

• Example: useCallback can be used to memoize event handler functions.

• Example: useMemo can be used to memoize the result of a complex calculatio
Answered by AI
Add your answer

Q1. React JS scenario based question , how to implement certain requirements
Add your answer
Q2. Previous project , the challenges faced
Add your answer