Computer Science Chapter 7 Database Fundamentals Mcqs Test Online Punjab 11th Class

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Question 1 of 10

Computer Science

1. If data is not updated in a file in file based data management systems, what type of problem will it cause?

Data redundancy

Invalid data

Data overflow

Data inconsistency

Question 1 of 10

Question 2 of 10

2. What refers to the minimum number of times an instance in one entity can be associated with an instance in the related entity?

Cardinality

Modality

Relation

E-R diagram

Question 2 of 10

Question 3 of 10

3. A record is also called:

Entity

Tuple

Property

Attribute

Question 3 of 10

Question 4 of 10

4. In which type of database, data is held in tables and tables are linked by common field?

Network Database

Object-Oriented Database

Relational Database

Hierarchical Database

Question 4 of 10

Question 5 of 10

5. An attribute is also called:

Relation

Field

Record

Entity

Question 5 of 10

Question 6 of 10

6. What is a key filed called that is used in relationship between tables whose value matches a primary key in the other table?

Secondary key

Alternate key

Candidate key

Foreign key

Question 6 of 10

Question 7 of 10

7. In which database model, data is organized in tree-like structure?

Network Database

Object-Oriented Database

Relational Database

Hierarchical Database

Question 7 of 10

Question 8 of 10

8. What is a thing of interest to an organization called about which data is to be held?

Relation

Entity

Attribute

Field

Question 8 of 10

Question 9 of 10

9. What refers to the maximum number of times an instance in one entity can be associated with instances in the related entity?

E-R diagram

Relation

Modality

Cardinality

Question 9 of 10

Question 10 of 10

10. Duplication of data in different files is called _________.

Data overflow

Invalid data

Data inconsistency

Data redundancy

Question 10 of 10

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