Name ________________________ ICT group_________

GCE ICT Assessment – Unit 1 A

3

3

3

2

2

4

1. Define :

Data

Information

Knowledge

2. State 3 factors which are important if data is to be useful :

__________________ __________________ ___________________

3. A database uses encoded data for gender – m for male and f for female.

a. Give 3 reasons why the data is encoded :

b. Give 2 problems that may occur by using coded data

4. Time is a type of cost involved in obtaining good quality information, give 2 other types of cost involved.

5. Give 4 methods of data collection

6.

2

5

2

1

4

1

2

Wildcards and logical operators are often used when searching for information.

a. What is meant by wildcard search ?

b. Give an example of a logical operator and how it might be used when searching a database of cars.

7. Give examples of the following data types :

Boolean

Date

Real

String

Integer

8. Errors can occur during transcription, give 2 other phases of handling data where errors may occur.

9. What is validation ?

10. Give 4 methods of validation

11. What is verification

12. Give 2 methods of verification