Mr Cooper Software Developer fresher Interview Questions and Answers

Q1. Design a Parking Lot
Ans. 
Design a parking lot system with features like parking, retrieving, and displaying available spots.
• Create a class for ParkingLot with attributes like total spots, available spots, and a list of parked vehicles.

• Implement methods for parking a vehicle, retrieving a vehicle, and displaying available spots.

• Use data structures like arrays or lists to manage parked vehicles and available spots.
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Q1. What are joins in sql
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Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
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Q2. What is OOP features
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OOP features are key concepts in Object-Oriented Programming that include encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (object)

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

• Polymorphism: Ability for objects to be treated as instances of their parent class or their own class

• Abstractio...read more
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Q3. Primary key , foreign key
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Q4. Exception in java
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An exception in Java is a runtime error that disrupts the normal flow of a program.
• Exceptions are objects that are thrown when an error occurs during the execution of a program.

• They can be caught and handled using try-catch blocks.

• Common types of exceptions in Java include NullPointerException, ArrayIndexOutOfBoundsException, and IOException.
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Q1. Best practices of coding
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Best practices of coding include writing clean and readable code, using meaningful variable names, following coding standards, and testing code thoroughly.
• Write clean and readable code

• Use meaningful variable names

• Follow coding standards

• Test code thoroughly
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Q1. String related questions
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Q1. Tuple related questions
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It had 3 questions, the level was medium hardish

Q1. There were 3 rounds of interviews, 2 technical and 1 HR, ln First round I was asked about OOPs, 2 medium level DSA questions, asked to write code on paper and explain the approach. Questions: 1. Given an ...read more
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The test carried 7 sections of aptitude with no negative markings and the questions were also easy with time duration of 1 hours which was to be used for the coding round also

Basic understanding was checked, if basics are clear of DSA and computer science fundamentals then very easy to crack

Aptitude questions, some reasoning and puzzle questions with fundamental computer language questions.

Q1. Oops question Language fundamental questions Puzzle Coding questions.
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Q2. What is polymorphism?
Ans. 
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to represent multiple data types.

• Examples include method overloading and method overriding in object-oriented programming.
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Q3. What is abstraction?
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Abstraction is the concept of hiding complex implementation details and showing only the necessary information to the user.
• Abstraction allows developers to focus on the essential features of an object or system without getting bogged down in unnecessary details.

• It helps in reducing complexity and improving efficiency by providing a simplified view of the system.

• For example, in object-oriented programming, abstract clas...read more
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Q1. Project discussion Puzzle
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Q1. What is your salary expectation? What is your long term goal?
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Q1. What is policy manager
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Policy manager is a software tool used to centrally manage and enforce policies across an organization's systems and applications.
• Policy manager helps define, monitor, and enforce policies related to security, compliance, access control, and other governance aspects.

• It allows administrators to set rules and regulations that govern how data and resources are accessed and used within an organization.

• Policy manager can au...read more
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Question on java basics

Q1. Oops concept and hr question
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