concepts od DBMS

Which of the following is a Data Model?

• (a) Entity Relationship model

• (b) Relational data model

• (d) All

In hierarchical model, data is organized___________

• (a) Logical structure

• (b) Physical structure

• (c) Tree like structure

• (d) None of these

What does ‘Double Rectangles’ show in the Entity-Relationship diagram?

• (a) Relationship Set

• (b) Weak Entity Sets

• (c) Derived Attributes

• (d) Multi-valued Attributes 

How many types of keys are there in Database Design?

• (a) Candidate key

• (b) Primary key

• (c) Foreign key

• (d) All of these

What is the name given to database management system which is capable of handling full text data, image data, audio and video?

• (a) Full media

• (b) Graphics media

• (c) Multimedia

• (d) Hypertext

Relational model uses some unfamiliar terminology. One tuple is equal to ______

• (a) record

• (b) field

• (c) file

• (d) data base

After your record, which command you need to issue to save the changes you have made for many data management environments.

• (a) Delete

• (b) Update

• (c) Sort key

• (d) Index

Which of the following is a type of DBMS software?

• (a) Utility

• (b) Data

• (c) MS Office

• (d) MySQL

What is the language most DBMS uses to help its users access data?

• (a) High level language

• (b) Query language

• (c) SQL

• (d) 4GL

Redundancy is minimized with a computer based database approach.

• A. 

  True

• B. 

  False