Computer Studies past questions: WAEC SSCE 2022
51 objective questions, with answers. Free to read and practise.
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51 questions, one at a time, marked as you go or at the end. No account needed.
- 1.A student would require the following devices to online application form except?
- A.keyboard
- B.mouse
- C.printer
- D.webcam
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Answer: C printer
- 2.Add 127 \(_{16}\) to 50A \(_{16}\)
- A.629 \(_{16}\)
- B.630 \(_{16}\)
- C.631 \(_{16}\)
- D.632 \(_{16}\)
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Answer: C 631 \(_{16}\)
- 3.Deleted items in the computers are temporarily stored in the?
- A.memory unit
- B.processor
- C.recycle bin
- D.task manager
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Answer: C recycle bin
- 4.Duplicating copyrighted electronic or digital content without the authors approval is considered?
- A.felonious
- B.ethical
- C.treasonable
- D.unethical
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Answer: A felonious
- 5.EDSAC was produced using a concept known as
- A.Circuit switching
- B.Packet routing
- C.Packet switching
- D.Stored program
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Answer: D Stored program
- 6.Ethical practice requires a computer user to
- A.shutdown properly
- B.hack into other peoples computer
- C.intrude into peoples privacy
- D.copy software without the license
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Answer: A shutdown properly
- 7.Examples of quantitative data type are?
- A.continuous and discrete
- B.local and foreign
- C.nominal and ordinal
- D.primary and secondary
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Answer: A continuous and discrete
- 8.he QBASIC statement LETX=Y-3 means
- A.the variables X and Y both receive the value 3
- B.the variable X receives the value3
- C.the variable X receives the value of Y less 3
- D.an error message has occured due to type mismatch
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Answer: C the variable X receives the value of Y less 3
- 9.How many binary digits are contained in 10MB of a memory stick?
- A.10x 1024
- B.10x 1024 x8
- C.10 x 1024 x 1024
- D.10 x 1024 x 1024 x 8
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Answer: D 10 x 1024 x 1024 x 8
- 10.If A is in cell A1 and B is in Cell B1 of a worksheet in a spreadsheet application,write a formula to calculate x= \(\frac{A^2 = B{^1/2}}{100}\)
- A.((A\(1^2)+(\)B1^(1/2)))/100
- B.((A\(1^2)+(\)B1^(1/2)))/100
- C.((A\(1^2+(\)B1^(1/2))/100
- D.((A\(1^2)+(\)B1^(1/2)))/100
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Answer: A ((A\(1^2)+(\)B1^(1/2)))/100
- 11.In number system ,base 16 is called ?
- A.hexadecimal
- B.decimal
- C.duodecimal
- D.octal
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Answer: A hexadecimal
- 12.In the URL https://waec.org.ng, the domain name is?
- A.waec.org.ng
- B.http://www
- C.//www/.waec
- D.org.ng
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Answer: A waec.org.ng
- 13.Key skills of a system analyst include the following except
- A.ability to troubleshoot
- B.interest in learning new skills
- C.motivational skills
- D.proficiency in programming languages
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Answer: C motivational skills
- 14.Modem computers Compared to earlier computers are ?
- A.less reliable
- B.faster and larger
- C.larger and stronger
- D.faster and smaller
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Answer: D faster and smaller
- 15.One difference between data and information is that ?
- A.data is meaningful while information is not meaningful
- B.data are raw facts and figures while information is computed
- C.information is independent of data while data is dependent on information
- D.information is the raw material while data is the end product of information
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Answer: B data are raw facts and figures while information is computed
- 16.One function of operating system is ?
- A.power supply allocation
- B.file corruption and deletion
- C.flowcharting
- D.resource allocation
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Answer: D resource allocation
- 17.One similarity between be spoke software and application packages is that they are?
- A.both available off the shelf
- B.highly standardized
- C.both written by computer users
- D.meant to be used by computer end users
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Answer: D meant to be used by computer end users
- 18.One-millionth of a second is also referred to as
- A.nanosecond
- B.microsecond
- C.millisecond
- D.picosecond
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Answer: B microsecond
- 19.Select two stages of booting from the following list: i. Power on Self Test; ii. Loading of Operating System; iii. Loading of e-mails; iv. Start in safe mode. iv. Save all active files
- A.I and II only
- B.I and III only
- C.II and IV only
- D.III and IV only
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Answer: A I and II only
- 20.Sequential files are?
- A.sorted using index
- B.sorted in a particular order
- C.stored as they come
- D.stored in any storage media
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Answer: B sorted in a particular order
- 21.Serial files are
- A.stored using a key
- B.sorted in a particular order
- C.stored as they come
- D.stored in any storage media
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Answer: C stored as they come
- 22.The file access method illustrated in the diagram above is called?

- A.hashed access
- B.indexed access
- C.random access
- D.sequential access
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Answer: B indexed access
- 23.The following instructions are guidelines for drawing flowcharts except that?
- A.flowcharts must have a logical start and finish
- B.it should follow a direction of left to right or top to bottom
- C.it should follow a direction of right to left or bottom to top
- D.it should be clear, neat and easy to follow
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Answer: C it should follow a direction of right to left or bottom to top
- 24.The following options are examples of information except?
- A.area of a circle
- B.circumference of a circle
- C.perimeter of a rectangle
- D.plain shape of a rectangle
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Answer: D plain shape of a rectangle
- 25.The keyboard key combination ALT + F4 in microsoft windows will
- A.close active programmes
- B.open a file
- C.restart the computer
- D.Select two stages of booting from the following list
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Answer: A close active programmes
- 26.The logic equation for the logic gate in the figure above is?

- A.Z=A+B
- B.Z=A.B
- C.Z= A+B
- D.Z=A.B.C
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Answer: B Z=A.B
- 27.The logic equation for the logic-circuit in the diagram above is?

- A.Z=A+B+C
- B.Z=A.B+C
- C.Z=A+B+C
- D.Z=A.B.C
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Answer: B Z=A.B+C
- 28.The maximum length of a text field in MS Access is?
- A.75
- B.120
- C.255
- D.265
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Answer: C 255
- 29.The number of entries in the diagram above is

- A.3
- B.4
- C.5
- D.12
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Answer: A 3
- 30.The number of entries in the figure above is?

- A.3
- B.4
- C.5
- D.12
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Answer: A 3
- 31.The octal fraction 0.65 converts to binary as
- A.0.110011
- B.0.110101
- C.101101
- D.101101
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Answer: B 0.110101
- 32.The part labelled X in the figure above is called?

- A.auxiliary memory
- B.output unit
- C.secondary memory
- D.storage unit
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Answer: B output unit
- 33.The part labelled Y in the compiler interface in the diagram represents

- A.intermediate code
- B.binary code
- C.object code
- D.pseudocode
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Answer: C object code
- 34.The part of the Corel Draw window labelled II in the diagram above is called?

- A.zoom in
- B.pan
- C.zoom out
- D.zoom to fit
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Answer: C zoom out
- 35.The pictorial representation of an object or application in the computer is called?
- A.diagram
- B.graphic
- C.Icon
- D.image
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Answer: C Icon
- 36.The process of running more than one program concurrently is known as
- A.multithreading
- B.multitasking
- C.multiprogramming
- D.multipurpose
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Answer: B multitasking
- 37.The process of testing the logic of algorithm to ensure they give correct result is known as ?
- A.debbuging
- B.desk checking
- C.flow charting
- D.pseudo coding
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Answer: B desk checking
- 38.The program that is loaded into a special area on a microprocessor or ROM on a one-time basis and becomes part of the hardware is called?
- A.firmware
- B.liveware
- C.software
- D.utility
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Answer: A firmware
- 39.The protocol used for email transmission is known as ?
- A.HTTP
- B.DHCP
- C.IP
- D.SMTP
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Answer: D SMTP
- 40.The result of the expression \(2 * 6 + 2/4 * 2 * 4^2\)
- A.21
- B.27
- C.28
- D.29
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Answer: C 28
- 41.The shortcut key for the open dialog box in MS Word is ?

- A.Alt + F12
- B.Ctrl + F12
- C.F12
- D.shift + f12
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Answer: B Ctrl + F12
- 42.The signals from Ato modem X in the diagram above are

- A.analogue
- B.digital
- C.electrons
- D.protons
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Answer: B digital
- 43.The type of transmission in the part labelled q in the diagram above is called

- A.broadcast
- B.full duplex
- C.half duplex
- D.simplex
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Answer: B full duplex
- 44.The virtual communication platform where many people keep in contact with family and friends is known as
- A.microsoft visio
- B.social engineering
- C.cyberspace
- D.virtual reality
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Answer: C cyberspace
- 45.Thy following programs are general purpose application software except
- A.corel draw
- B.payroll system
- C.Ms software
- D.MS word
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Answer: B payroll system
- 46.use the diagram above to answer questions below The logic gate in the diagram above is called a

- A.AND gate
- B.NAND gate
- C.NOR gate
- D.OR gate
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Answer: A AND gate
- 47.Use the QBASIC program below to answer question below 10 REM Program to calculate product of numbers 20 CLS 30 INPUT A 40 INPUT B 50 LET PRODUCT=A*B 60 PRINT PRODUCT 70 END The number 10, 20,30, 40, 50, 60 and 70 as stated in the program indicate
- A.bullet numbering
- B.codes
- C.bullet numbering
- D.line number
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Answer: D line number
- 48.What type of computer would be most suitable for a student who lives in a remote village without constant electricity
- A.Desktop computer
- B.Laptop computer
- C.Mainframe computer
- D.Minicomputer
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Answer: B Laptop computer
- 49.what type of network is represented in the diagram above?

- A.local area network
- B.metropolitan area network
- C.personal area network
- D.wide area network
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Answer: D wide area network
- 50.What will be the result of writing the formula=year[now [ + 3 in a worksheet,of a spread sheet,if the current calendar is 14 august ,1960?
- A.17 august 196003
- B.14 aug,1963
- C.11 august,1963
- D.1963
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Answer: B 14 aug,1963
- 51.Which of the following operations will not run a slide show in MS PowerPoint?
- A.pressing F5
- B.pressing shift +f5
- C.choosing the slide show tab
- D.clicking on the slide show icon bar
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Answer: A pressing F5
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