Understanding File Processing and DBMS

What is a file processing system?

• A file processing system is a method for programming web applications.

• A file processing system is a type of database management system.

• A file processing system is a software for creating graphics.

• A file processing system is a method for managing data stored in files.

How does a database management system (DBMS) differ from a file processing system?

• A DBMS is more efficient and robust than a file processing system, offering better data management, integrity, and support for complex queries.

• A file processing system supports complex queries better than a DBMS.

• A DBMS is less secure than a file processing system.

• A DBMS requires more manual data management than a file processing system.

What are the advantages of using a DBMS over a file processing system?

• Simplified data retrieval without advanced features

• Advantages of using a DBMS over a file processing system include improved data integrity, reduced redundancy, better security, support for concurrent access, and advanced querying capabilities.

• Limited access for multiple users

• Increased data duplication

Define the term 'data redundancy' in the context of file processing systems.

• Data redundancy is the unnecessary duplication of data in file processing systems.

• Data redundancy is the practice of encrypting data for security.

• Data redundancy is the process of compressing data to save space.

• Data redundancy refers to the use of multiple databases for backup purposes.

What is normalization in database design?

• Normalization in database design is the process of organizing data to minimize redundancy and dependency.

• A way to visualize database relationships

• A method to increase data redundancy

• A technique for data encryption

Explain the concept of a primary key in a DBMS.

• A primary key is used to store large amounts of data in a single record.

• A primary key is an optional field that can be left blank.

• A primary key is a unique identifier for a record in a database table, ensuring uniqueness and non-null values.

• A primary key can be duplicated across records in a table.

Describe the role of SQL in database management.

• SQL is primarily used for file storage management.

• SQL is a programming language for web development.

• SQL is essential for querying, updating, and managing data in relational databases.

• SQL is only used for data visualization.

How does a DBMS ensure data integrity?

• A DBMS ensures data integrity by enforcing constraints, using transactions, and validating data.

• By allowing unlimited data duplication

• By storing data in a single file

• By using only manual data entry

What is the purpose of an index in a database?

• To store data in a more compact format.

• To create backups of the database.

• To improve the speed of data retrieval operations.

• To ensure data integrity and consistency.

Explain the difference between a flat file and a relational database.

• Flat files are more complex than relational databases.

• A flat file can store data in multiple tables with relationships.

• A relational database stores data in a single table without relationships.

• A flat file stores data in a single table without relationships, while a relational database uses multiple tables with defined relationships.