Muziris Softech Interview Questions and Answers

Three questions regarding output prediction.

Q1. What is difference between abstract class and interface?
Ans. 
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have constructors, fields, and methods, while interface cannot have any of these.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract classes are used to define a common behavior for subclasses, while interfaces are used to define a contract for cla...read more
Answered by AI
Add your answer
Q2. What is wrapper class in java ?
Ans. 
A wrapper class in Java is a class that wraps around a primitive data type and provides additional methods and functionalities.
• Wrapper classes are used to convert primitive data types into objects.

• They provide methods to access the value of the wrapped primitive type.

• Examples include Integer, Double, Boolean, etc.
Answered by AI
Add your answer
Q3. Explain oops concept in java?
Ans. 
OOP in Java 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.
• OOP focuses on creating objects that interact with each other to solve problems.

• Encapsulation: Objects bundle data and methods that operate on the data together.

• Inheritance: Classes can inherit attributes and methods from other classes.

• Polymorphism: Objects can take on d...read more
Answered by AI
Add your answer

Q1. What is RDBMS What is difference between delete and truncate What is normalisation Different types of join Oops concepts
Ans. 
RDBMS stands for Relational Database Management System. It is a type of database management system that stores data in a structured format.
• RDBMS is used to manage relational databases, where data is stored in tables with rows and columns.

• Examples of RDBMS include MySQL, Oracle, SQL Server, and PostgreSQL.

• RDBMS uses SQL (Structured Query Language) for querying and managing data.

• It ensures data integrity through relation...read more
Answered by AI
Add your answer
Q2. What are the Benefits of sql
Ans. 
SQL provides benefits such as data retrieval, data manipulation, data security, and data consistency.
• Efficient data retrieval: SQL allows for quick and easy retrieval of specific data from databases.

• Data manipulation: SQL enables users to update, insert, and delete data in databases.

• Data security: SQL provides features like user authentication and access control to ensure data security.

• Data consistency: SQL helps maint...read more
Answered by AI
Add your answer
Q3. What is concurrent transaction
Ans. 
Concurrent transactions are multiple transactions that are executed simultaneously in a database system.
• Concurrent transactions can lead to issues like data inconsistency and conflicts.

• Database systems use techniques like locking and timestamping to manage concurrent transactions.

• For example, if two users try to update the same record at the same time, conflicts may arise.
Answered by AI
Add your answer

Q1. Strength and weakness Company products or client
Add your answer

Q1. How many time for travel Hostel or stay in home Any friends here From where job applied
Add your answer