Computer Science Class 12 Chapter 1 DATA BASICS Test Paper

Q.1: Tick the correct Option.

1. Which of the following is known as data set?

(a) All
(b) Field
(c) Record
(d) File ✅

2. The logical grouping of characters is :

(a) All
(b) Field ✅
(c) Record
(d) File

3. The most commonly used database model in current database development is

(a) Network
(b) Hierarchical
(c) Relational ✅
(d) All

4. Storage and retrieval of data is related is

(a) Data capturing
(b) Analysis result
(c) Managing output
(d) Data Manipulation ✅

5. Which of the following database model is also referred as inverted tree?

(a) Hierarchical ✅
(b) Network
(c) Relational
(d) Object

Q.2: Give answer to any eight short questions of the following

1. Define capturing.

2. Define DML.

3. Define data integration.

4. Define translation file.

5. What is summarizing of data?

6. List some important purpose of SQL.

7. State the purpose of report generator?

8. Describe data manipulation.

9. What is the use of DDL?

10. Define data file.

Q.3: Give answer to any two questions of the following.

(a) What is database system? Also explain the major components of database system.

(b) What is file processing system? Describe the problems which were faced in traditional file system.