WAEC - Data Processing (2023)

  • 1
    The Difference Engine and the Analytical Engine were invented by
    პასუხი
    (D)
    Charles Babbage
  • 2
    A type of file organization that stores data in the order of their arrival is called
    პასუხი
    (D)
    sequential file organization
  • 3
    Which of the following computer types represents data as variable and continuous values?
    პასუხი
    (A)
    Analogue computer
  • 4
    The following feature are found in the toolbox of CorelDraw application except
    პასუხი
    (C)
    marque tool
  • 5
    The ruler feature in MS Word that is used to indent the second and subsequent lines of a paragraph is
    პასუხი
    (B)
    hanging indent
  • 6
    Advantages of parallel database include the following except
    პასუხი
    (D)
    huge resources
  • 7
    The volume of data that can be sent from one point to another in a given time period is called
    პასუხი
    (D)
    bandwidth
  • 8
    One application of ICT in medicine is
    პასუხი
    (B)
    computerized axial tomography
  • 9

    Figure 2 is an email application interface. Use it to answer questions 15 and 16.
    New messages received are save in the part labelled

    პასუხი
    (A)
    II
  • 10

    Figure 2 is an email application interface. Use it to answer questions 15 and 16.

    To send an e-mail, the user must click on the part labelled

    პასუხი
    (B)
    I
  • 11
    Computer malware is detected by
    პასუხი
    (C)
    antivirus
  • 12
    When performing computer recovery operations after a system crash, the startup disk is used to
    პასუხი
    (D)
    recover the system disk from an image file
  • 13
    The speed of access to files in a random access file compared to other file organization methods is
    პასუხი
    (C)
    relatively fast.
  • 14
    Which of the following devices is needed by a technician for protection against electrostatic discharge?
    პასუხი
    (B)
    Wrist strap
  • 15

    Figure 3 is a Microsoft Excel Worksheet. Use it to answer questions 20 and 21.
     

       A  B  C  D  E
     1  IDENTICATION NUMBER  BASIC SALARY (N)  TOTAL ALLOWANCE (N)  TOTAL DEDUCTION (N)

     NET SALARY (N)

     2  WASC/LPT/001  800000  60000  40000  820000
     3  WASC/LPT/002  700000  40000  20000  720000
     4  WASC/LPT/003  300000  10000  5000  305000
     5  WASC/LPT/004  400000  20000  10000  410000

    Figure 3

    What formula will correctly display the total number of individuals involved in the computation as shown in Figure 3?

    პასუხი
    (C)
    =COUNTA(A2:A5)
  • 16

     

    Figure 3 is a Microsoft Excel Worksheet. Use it to answer questions 20 and 21.
     

       A  B  C  D  E
     1  IDENTICATION NUMBER  BASIC SALARY (N)  TOTAL ALLOWANCE (N)  TOTAL DEDUCTION (N)

     NET SALARY (N)

     2  WASC/LPT/001  800000  60000  40000  820000
     3  WASC/LPT/002  700000  40000  20000  720000
     4  WASC/LPT/003  300000  10000  5000  305000
     5  WASC/LPT/004  400000  20000  10000  410000

     

    Figure 3
    What formula will calculate the total number of individuals who earn less than ₦500,000 from the table as shown in Figure 3?

    პასუხი
    (D)
    =COUNTIF(E2:E5,
  • 17

    Figure 4 is an entity relationship diagram in MS Access. Use it to answer questions 22 and 23.
    How many entity are listed in Figure 4?

    პასუხი
    (D)
    5
  • 18

    Figure 4 is an entity relationship diagram in MS Access. Use it to answer questions 22 and 23.
    What kind of relationship exists between users and products as shown in Figure 4?

    პასუხი
    (A)
    One-to-many
  • 19
    Database Administrator is a professional who
    პასუხი
    (B)
    designs, implements and maintains a database
  • 20
    The aim of administering questionaire is to collect
    პასუხი
    (A)
    data
  • 21
    A pointing device that controls cursor movement on the screen is
    პასუხი
    (A)
    trackball
  • 22
    The information processing stage that produces detailed evaluation of data is
    პასუხი
    (C)
    analysis
  • 23
    A digital platform for the delivery of public sector information and seminar to citizens is called
    პასუხი
    (D)
    e-government
  • 24
    The following precautionary measures are taken against virus infection except
    პასუხი
    (A)
    downloading e-mail and attachment before scanning it
  • 25
    Artificial intelligence is a feature of
    პასუხი
    (A)
    fifth generation computers
  • 26
    Macromedia Dreamweaver application is used for
    პასუხი
    (D)
    web design
  • 27
    People who use cathode ray tube monitor without antiglare screen are susceptible to
    პასუხი
    (A)
    blurred vision
  • 28

    Figure 5 is an MS PowerPoint application interface. The part used to apply motion effect to different objects of a slide is labelled

    პასუხი
    (C)
    II
  • 29

    Use Table 1 to answer questions 35 and 36.

    Table 1: TableStudent

     Reg No  House

     Age

     18/001  Yellow  14
     18/002  Blue  15
     18/003  Yellow  15



    Columns 2 and 3 in Table 1 cannot be used as primary key because both fields contain

    პასუხი
    (B)
    duplicate values
  • 30

     

    Use Table 1 to answer questions 35 and 36.

    Table 1: TableStudent
     

     Reg No  House

     Age

     18/001  Yellow  14
     18/002  Blue  15
     18/003  Yellow  15

    The attributes in Table 1 are

     

    პასუხი
    (C)
    Reg. No, House, Age
  • 31
    Computer ethical practises include the following except
    პასუხი
    (D)
    use of other people’s computer without due permission
  • 32
    The process of drawing inference from a piece of information is called
    პასუხი
    (A)
    interpretation
  • 33
    A computer system under use was found to be unusually slow, freezes often and very dusty. What is needed to correct this problem?
    პასუხი
    (D)
    Perform maintenance procedure
  • 34

    The equipment shown in Figure 1 is used for

    პასუხი
    (D)
    radio transmission
  • 35
    Use the information below to answer questions 13 and 14.
    A student in the school hostel was able to upload some personal details on the school portal via the school's WiFi .
    The ISP and the hostel are both domiciled in the school premises.

    What type of network is illustrated above?
    პასუხი
    (C)
    LAN