Clover Infotech Incident Problem Manager Interview Questions and Answers

There were simple aptitude questions and core java MCQS

Q1. What's OOPs concept
Ans. 
OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (object).

• Inheritance: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding th...read more
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Q2. Explain Inheritance
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Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Allows a class to inherit attributes and methods from another class

• Promotes code reusability and reduces redundancy

• Creates a parent-child relationship between classes

• Derived class can override or extend the functionality of the base class

• Example: Class 'Car' can inherit from class 'Vehicle' and inh...read more
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Q3. Basic Java output questions
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Q1. Interviewer asked me to introduce and then he asked about my education and family details and then he told me about company.
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Q1. What are closures
Ans. 
Closures are functions that have access to variables from their containing scope even after the scope has closed.
• Closures allow functions to access variables from their outer function even after the outer function has finished executing.

• They are commonly used in event handlers, callbacks, and asynchronous programming.

• Closures help in maintaining state in functional programming.
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Q2. What is virtual DOM
Ans. 
Virtual DOM is a lightweight copy of the actual DOM used for efficient updates in web development.
• Virtual DOM is a concept used in frameworks like React to improve performance by minimizing actual DOM manipulations.

• When changes are made to the virtual DOM, a comparison is done with the actual DOM to determine the minimal updates needed.

• This approach reduces the number of costly DOM operations, resulting in faster rende
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Q3. What are the data types in JS
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Data types in JavaScript include number, string, boolean, object, function, undefined, and null.
• Number - represents numeric data, e.g. 10, 3.14

• String - represents textual data, e.g. 'hello', '123'

• Boolean - represents true or false values, e.g. true, false

• Object - represents complex data structures, e.g. { key: 'value' }

• Function - represents executable code, e.g. function() { }

• Undefined - represents a variable that has ...read more
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Q1. Write react code for counter
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React code for a simple counter
• Create a functional component for the counter

• Use useState hook to manage the count state

• Render the count value and buttons to increment and decrement the count
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Q1. Salary discussion
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Q1. What is Observables, Services, Promises, Closure ?
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Q1. What is microservice
Ans. 
Microservices are a software development technique where an application is composed of small, independent services that communicate over well-defined APIs.
• Microservices are small, independent services that work together to form an application

• Each microservice is responsible for a specific function or feature

• Microservices communicate with each other over well-defined APIs

• Microservices can be developed, deployed, and sca...read more
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Q2. Explain repository design pattern
Ans. 
Repository design pattern is a structural design pattern that separates the data access logic from the business logic in an application.
• It provides a way to access data from a data source without exposing the underlying data access code to the business logic.

• It helps in achieving separation of concerns by keeping data access code in a separate layer.

• Commonly used in applications where data needs to be accessed from mul
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Design a Distributed Cache

A topic of given and we had discuss the topic like debate

Q1. Give an elevator pitch to the director of ITC about the company’s product
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Q2. How does distribution channel works
Ans. 
Distribution channels are pathways through which products or services are delivered from the manufacturer to the end consumer.
• Distribution channels can include wholesalers, retailers, e-commerce platforms, and direct sales.

• They help in reaching a wider customer base and increasing product availability.

• Efficient distribution channels can lead to faster delivery times and lower costs.

• Examples include Amazon as an e-comme...read more
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Q1. How would handle your customers
Ans. 
I would handle my customers with empathy, active listening, and prompt resolution of their issues.
• Practice active listening to understand customer needs and concerns

• Show empathy and understanding towards customer frustrations

• Provide prompt and effective solutions to customer problems

• Maintain a positive and professional attitude at all times
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Q2. Are you ready for relocation
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Q1. Say about the job description that what you understood
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Q2. Why do you want to join as a consultant as you have good coding knowledge
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Q3. Why do you want to become a consultant.. though you have good coding knowledge
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Q1. How do you read an external text file
Ans. 
To read an external text file, you can use file handling techniques in programming languages like Python or Java.
• Use file handling functions like open(), read(), and close() in Python to read an external text file.

• In Java, use classes like FileReader and BufferedReader to read text files.

• Specify the file path and mode (read mode) when opening the file.

• Read the contents of the file line by line or as a whole, depending ...read more
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Q2. Write a java program to find the occurrences of characters
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Java program to find occurrences of characters in a string
• Create a HashMap to store characters and their counts

• Iterate through the string and update the counts in the HashMap

• Print the characters and their counts from the HashMap
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