JAMB and WAEC Computer Studies questions: Data processing and information

40 questions with answers and explanations. Tap an option to check yourself.

1. Question 1· Data processing and information· JAMB

   Raw facts that have not been processed are

   • Adata
   • Binformation
   • Cknowledge
   • Doutput

   Show answer

   Explanation and discussion

2. Question 2· Data processing and information· JAMB

   A record in a file is

   • Aa program
   • Ba single character
   • Ca whole database
   • Da collection of related fields about one item

   Show answer

   Explanation and discussion

3. Question 3· Data processing and information· JAMB

   Information technology refers to

   • Athe use of computers and telecommunications to store, process and transmit information
   • Bonly typing
   • Conly printing
   • Donly radio

   Show answer

   Explanation and discussion

4. Question 4· Data processing and information· JAMB

   Processed data that is meaningful to the user is

   • Anoise
   • Braw data
   • Cinput
   • Dinformation

   Show answer

   Explanation and discussion

5. Question 5· Data processing and information· WAEC

   Verification of data entry can be done by

   • Adeleting the data
   • Bdouble entry and comparison
   • Cprinting only
   • Dusing a mouse

   Show answer

   Explanation and discussion

6. Question 6· Data processing and information· WAEC

   Validation checks that data

   • Ais reasonable and within allowed limits
   • Bwas copied correctly from the source
   • Cis switched on
   • Dis printed

   Show answer

   Explanation and discussion

7. Question 7· Data processing and information· WAEC

   Entering the same data twice and comparing the two entries is

   • Aencryption
   • Bvalidation
   • Cverification
   • Dindexing

   Show answer

   Explanation and discussion

8. Question 8· Data processing and information· JAMB

   SQL is a language used to

   • Aquery and manage databases
   • Bdesign hardware
   • Ccreate animations
   • Dwrite operating systems only

   Show answer

   Explanation and discussion

9. Question 9· Data processing and information· JAMB

   Data integrity means that data is

   • Alarge
   • Bsecret
   • Caccurate and consistent
   • Ddeleted

   Show answer

   Explanation and discussion

10. Question 10· Data processing and information· WAEC

    Real-time processing is required for

    • Ayearly reports
    • Bmonthly bills
    • Cair traffic control
    • Dprinting certificates

    Show answer

    Explanation and discussion

11. Question 11· Data processing and information· JAMB

    The system development life cycle begins with

    • Aproblem identification and a feasibility study
    • Bmaintenance
    • Ccoding
    • Dtesting

    Show answer

    Explanation and discussion

12. Question 12· Data processing and information· JAMB

    Data validation checks that data is

    • Areasonable and within acceptable rules
    • Bcorrectly copied from the source
    • Cencrypted
    • Dbacked up

    Show answer

    Explanation and discussion

13. Question 13· Data processing and information· JAMB

    In sequential file organisation, records are

    • Aindexed only
    • Breached directly by address
    • Cstored randomly
    • Dstored and read one after another in order

    Show answer

    Explanation and discussion

14. Question 14· Data processing and information· WAEC

    Checking that an age entered lies between 10 and 25 is a

    • Aformat check
    • Bpresence check
    • Crange check
    • Dlength check

    Show answer

    Explanation and discussion

15. Question 15· Data processing and information· WAEC

    Batch processing is suitable for

    • Aa payroll run at the end of each month
    • Bairline seat booking
    • CATM withdrawals
    • Donline chat

    Show answer

    Explanation and discussion

16. Question 16· Data processing and information· JAMB

    A presence check ensures that

    • Adata is sorted
    • Bdata is in range
    • Cdata is numeric
    • Da required field is not left empty

    Show answer

    Explanation and discussion

17. Question 17· Data processing and information· WAEC

    A collection of related fields describing one item, such as one student, is a

    • Afile
    • Brecord
    • Cdatabase
    • Dbyte

    Show answer

    Explanation and discussion

18. Question 18· Data processing and information· JAMB

    Data redundancy means

    • Adata loss
    • Bunnecessary duplication of data
    • Cdata encryption
    • Ddata sorting

    Show answer

    Explanation and discussion

19. Question 19· Data processing and information· WAEC

    Real-time processing is needed for

    • Aarchiving old files
    • Bmonthly payrolls
    • Cend-of-year reports
    • Dairline seat reservations

    Show answer

    Explanation and discussion

20. Question 20· Data processing and information· WAEC

    Information is

    • Araw facts
    • Bprocessed data that is meaningful
    • Chardware
    • Da program

    Show answer

    Explanation and discussion