Capco Technologies Senior Manager Interview Questions and Answers

Q1. What is sql ? Deff between my sql and oracle sql
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Q2. What is join ? Types of joins
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Q1. API Testing related questions
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Q2. Selenium related questions
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Q1. Exploring projects worked on
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Q2. Why Am I looking for change
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Q1. Do you have working experience of SwiftUI
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Q2. Have you ever implemented or worked with server driven UIs
Ans. 
Yes, I have experience implementing server driven UIs.
• Implemented server driven UIs using JSON responses to dynamically update UI elements

• Worked with frameworks like React and Angular to handle server driven UI updates

• Used server driven UIs to efficiently manage and display large amounts of data
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Q1. What is closure and types?
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Closure is a function that captures variables from its surrounding scope, allowing it to access those variables even after the scope has closed.
• Closure allows a function to access variables from its lexical scope even after the function has finished executing.

• Types of closures include lexical closures, which capture variables from the surrounding lexical scope, and function closures, which capture variables from the fu...read more
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Q2. What is Core data and all operations with example/scenarios
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Core Data is a framework provided by Apple for managing the model layer objects in an iOS application.
• Core Data is used for storing, retrieving, and managing data in an iOS app.

• It provides an object-oriented interface to work with data.

• Operations include creating, reading, updating, and deleting data.

• Example: Creating a new record in Core Data for a user profile.

• Example: Fetching a list of items from Core Data to displ
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Q1. Why you want to join the company?
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Q2. Why should we hire you
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Q1. Java core Java related
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Q2. Multi threading and when do u choose
Ans. 
Multithreading is used to improve performance by executing multiple tasks concurrently. Choose it when tasks can run independently.
• Use multithreading when tasks can be divided into independent subtasks that can run concurrently

• Choose multithreading for tasks that involve I/O operations, such as reading/writing files or network communication

• Consider multithreading for tasks that require parallel processing, such as imag
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Q1. Docker and kubernetes
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Q2. Cloud services and AWS related
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Q1. Hibernate One to Many Relationships
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Hibernate allows mapping one-to-many relationships between entities using annotations or XML configuration.
• Use @OneToMany annotation in the parent entity to define the relationship

• Use @JoinColumn annotation to specify the foreign key column in the child entity

• Use mappedBy attribute in @OneToMany annotation to specify the field in the child entity that owns the relationship
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Q2. Design Pattern - Factory, Singleton
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Q3. Coding Question
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Q4. SQL Query Optimization
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Html, js and css concepts

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Q1. Projects handled at the current organisation
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Developed and maintained multiple web applications for internal use
• Led a team in redesigning the company's main website to improve user experience

• Implemented new features and functionalities based on user feedback

• Optimized existing codebase to improve performance and scalability

• Integrated third-party APIs to enhance application capabilities
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Q2. How to figure errors before customers report it
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Implement automated monitoring and logging to proactively detect errors before customers report them.
• Set up automated monitoring tools to track system performance and detect anomalies

• Implement logging mechanisms to capture errors and exceptions in real-time

• Utilize error tracking software to aggregate and analyze error data

• Establish alerts and notifications for critical errors to prompt immediate action

• Regularly review ...read more
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Q1. What are Java 8 new features? Which of these have you used?
Ans. 
Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions: Enable functional programming in Java by expressing instances of single-method interfaces (functional interfaces) concisely.

• Functional interfaces: Interfaces with a single abstract method, such as java.util.function.Function or java.util.function.Predicate.

• Streams: Allow for proce...read more
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Q2. Are you aware of Eviction Policy in Cache?
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Eviction policy in cache determines which items should be removed when the cache reaches its maximum capacity.
• Eviction policy helps in managing the cache size and ensuring that the most relevant data is retained.

• Common eviction policies include LRU (Least Recently Used), LFU (Least Frequently Used), and FIFO (First In, First Out).

• For example, in LRU policy, the least recently accessed items are removed from the cache w
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Q3. LRU in cache? WAP to demonstrate LRU in Cache.
Ans. 
LRU (Least Recently Used) is a cache eviction policy where the least recently accessed items are removed from the cache when it reaches its capacity.
• LRU cache stores key-value pairs with a maximum capacity. When the cache is full, the least recently used item is evicted to make space for new items.

• Each time a key is accessed in the cache, it is moved to the front of the cache to indicate it was the most recently used i...read more
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Q4. Implement Factory Pattern.
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Factory pattern is a creational design pattern that provides an interface for creating objects in a superclass, but allows subclasses to alter the type of objects that will be created.
• Create an interface or abstract class for the factory with a method to create objects

• Create concrete classes that implement the factory interface and return specific types of objects

• Client code uses the factory to create objects without k
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Q5. What are profiles in spring boot?
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Profiles in Spring Boot allow you to define different configurations for different environments.
• Profiles are used to customize application behavior based on the environment it is running in.

• You can define profiles in application.properties or application.yml using 'spring.profiles.active' property.

• Common profiles include 'dev', 'test', and 'prod' for development, testing, and production environments.

• You can have differ...read more
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Q6. Which cache have you used? Why is Cache needed
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I have used Redis and Memcached. Cache is needed to improve performance by storing frequently accessed data in memory.
• Used Redis for key-value storage and Memcached for object caching

• Cache is needed to reduce database load and improve response time

• Helps in storing frequently accessed data in memory for quick retrieval
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Q7. Have you worked on Kafka? How many partitions did your code have?
Ans. 
Yes, I have worked on Kafka. My code had 10 partitions.
• Yes, I have experience working with Kafka and have implemented code with multiple partitions.

• In one of my projects, I used Kafka with 10 partitions to distribute the workload efficiently.

• Having multiple partitions in Kafka helped in achieving high throughput and scalability for real-time data processing.
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Was asked to create a game of finger cricket (like the one indians played in school (90s kids))

Q1. Detailed Architectural discussion on my current project and technical questions.
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Q1. Social change interview.
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Q1. Salary negotiation
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