Musikaar Interview Questions, Process, and Tips

Q1. Linux cli things Cloud knowledge Magento
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Q1. Work time Package Like that work related things and company briefing
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General knowledge and logical mathematics.

Q1. 2 week training with review
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Q2. Based on your review task.
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Q1. What are oops concepts in java, explain real time scenario
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OOPs concepts in Java include inheritance, polymorphism, encapsulation, and abstraction.
• Inheritance allows a subclass to inherit properties and methods from a superclass.

• Polymorphism allows objects to take on multiple forms and behave differently based on their context.

• Encapsulation hides the implementation details of an object and only exposes necessary information.

• Abstraction allows for the creation of abstract class...read more
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Q2. Uses of interface, inheritance
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Interfaces define contracts for behavior, while inheritance allows for code reuse and polymorphism.
• Interfaces allow for loose coupling and abstraction, enabling multiple implementations of the same behavior.

• Inheritance allows for code reuse and extension of existing classes, reducing code duplication.

• Polymorphism allows objects of different classes to be treated as if they were of the same class, simplifying code and i
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Q3. SQL query for join of tables
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SQL query for joining tables
• Use JOIN keyword to combine two or more tables based on a related column

• Specify the columns to be selected using SELECT keyword

• Use ON keyword to specify the condition for joining the tables

• Different types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN
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Q4. Java concepts used in your project
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Used Java concepts such as inheritance, polymorphism, and exception handling in my project.
• Implemented inheritance to create a base class and derived classes with specific functionalities.

• Utilized polymorphism to allow objects of different classes to be treated as if they were of the same class.

• Implemented exception handling to handle errors and prevent program crashes.

• Used interfaces to define a set of methods that a ...read more
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Q5. Overloading vs overriding, practical uses
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Overloading is having multiple methods with the same name but different parameters. Overriding is having a method in a subclass with the same name and parameters as a method in the superclass.
• Overloading is used to provide different ways to call a method with different parameters

• Overriding is used to provide a specific implementation of a method in a subclass

• Overloading is resolved at compile-time while overriding is r...read more
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Q1. Detailed discussion on the projects worked on
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Q1. Technical questions and answers
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Q1. Face to face interview
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Q1. General HR questions
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Q1. What is java ?
Ans. 
Java is a high-level programming language known for its portability, security, and object-oriented features.
• Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM).

• It is object-oriented, allowing for modular and reusable code.

• Java is known for its security features, such as sandboxing and encryption.

• Popular frameworks and libraries like Spring and Hibernate are commonly used in
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Q2. Opps concepts collections
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Q3. Data structures
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Q1. Opps and collections
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Q2. Must know about collections
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Q1. Describe the inner working of recyclerview?
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RecyclerView is a flexible view for providing a limited window into a large data set.
• RecyclerView is used to display large data sets that can be scrolled efficiently.

• It reuses the views that are no longer visible to display new data.

• It uses a LayoutManager to position the items and a ViewHolder to cache the views.

• It provides built-in animations for adding, removing, and updating items.

• It supports both vertical and hori...read more
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Q2. Difference between Array and Linkedlist?
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Array is a collection of elements of similar data type stored in contiguous memory locations. LinkedList is a data structure where each element is a separate object with a reference to the next element.
• Array has fixed size, LinkedList can grow dynamically

• Array has faster access time, LinkedList has faster insertion and deletion time

• Array is best for random access, LinkedList is best for sequential access

• Example of Arra...read more
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Q3. What is context? explain it's types
Ans. 
Context is an object that provides access to application-specific resources and classes.
• Context is used to get access to system services, resources, preferences, etc.

• There are two types of context: Application Context and Activity Context.

• Application Context is tied to the lifecycle of the application and is available throughout the application.

• Activity Context is tied to the lifecycle of an activity and is available o...read more
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