File Structure and Record Storage Quiz

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Why are most databases stored permanently on disk secondary storage?

Cost of secondary memory is higher than primary memory
Secondary memory is more secure than primary memory
Databases are generally too large to fit entirely in main memory (correct)
Secondary memory is faster than primary memory

What is primary storage in a computerized system?

Storage media with large capacity and slow access
Storage media that is inexpensive
Storage media that can be operated on directly by the CPU (correct)
Storage media that stores data permanently

What constitutes a record type or record format definition?

A sequence of records
A collection of related data values or items
A collection of field names and their corresponding data types (correct)
A collection of file names

What is a file in the context of data storage?

A sequence of records of the same record type (C) Signup and view all the answers

When is a file said to be made up of fixed-length records?

When every record in the file has exactly the same size (C) Signup and view all the answers

What is the purpose of primary storage in a computerized system?

Primary storage is used for storing data that can be operated on directly by the CPU. It is fast but has limited storage capacity. Signup and view all the answers

Why are most databases stored permanently on disk secondary storage?

Most databases are stored permanently on disk secondary storage because they are generally too large to fit entirely in main memory, secondary memory is permanent, and the cost is less. Signup and view all the answers

What is a record in the context of data storage?

A record is a collection of related data values or items that usually describe entities, their attributes, and their relationships. Signup and view all the answers

What is a file in the context of data storage?

A file is a sequence of records, all of which should be of the same record type. If every record in the file has exactly the same size, the file is said to be made up of fixed-length records. Signup and view all the answers