Unit 1 RDBMS MCQS

What is refined data

• Knowledge

• Information

• Statistics

• None

What are the key attributes of information

• Accuracy

• Timeliness

• Relevancy

• All the above

_______ means information is free from mistakes and errors

Which means the use of a piece of information for a particular person

• Accuracy

• Timeliness

• Relevancy

• None

Data are processed through _____ to create information

• Channels

• Ledgers

• Models

• None

_______ is the backbone of information.

Timeliness means that the information is free from mistakes and errors.

• True

• False

Which of the following is a database element

• Data

• Relationships

• Constraints

• All the above

What are binary computer representations of stored logical entities

• Data

• Relationships

• Constraints

• Schema

Which of the following is a hierarchical database

• IDMS

• IMS

• DB2

• Oracle