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ZIMSEC O Level · 7014/1 · N2014

Computer Science Paper 1 November 2014

Questions
40
Time allowed
60 min
Syllabus code
7014/1

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Questions
40
Pass mark
24
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Answer every question in the printed order, get marked at the end, then see the answers.

The questions

Question 1

Input and output devices
A scanner can be described as
  1. Aan output device only.
  2. Ban input device only.
  3. Can input and output device.
  4. Dstorage device.

Question 2

System software
Microsoft Windows is an example of
  1. Aan operating system.
  2. Ba database program.
  3. Ca word processing program.
  4. Da graphics program.

Question 3

Input and output devices
The best input device suitable for a visual impaired person is a
  1. Astandard keyboard.
  2. Btouch screen.
  3. Cmicrophone.
  4. Dmouse.

Question 4

Computer system structure

The diagram represents components of a computer system.

In which component would a printer be found?

  1. AA
  2. BB
  3. CC
  4. DD

Question 5

Number systems
77 converted to binary is
  1. A1011001
  2. B1001101
  3. C1100111
  4. D1001001

Question 6

Storage
The data stored on a CD-ROM is
  1. Avolatile and read only data.
  2. Bnon-volatile and read only data.
  3. Cnon-volatile and read/write data.
  4. Dvolatile and read/write data.

Question 7

Computer system structure
The speed of a computer CPU can be measured in
  1. Agigabytes.
  2. Bgigawatts.
  3. Cgigahertz.
  4. Dgigacycles.

Question 8

Storage
Which of the following has the fastest access to data?
  1. ADVD drive
  2. Bfloppy disk
  3. Czip disk
  4. Dhard disk

Question 9

Data capture
Which of these methods of data input is commonly used to read account numbers on cheques?
  1. AMICR
  2. BOCR
  3. Cbar codes
  4. DOMR

Question 10

Communications
The device that links computers to telephone networks by converting digital and analogue signals is called a
  1. Atranscoder.
  2. Bmodem.
  3. Cdigitiser.
  4. Dtranslator unit.

Question 11

Programming
Which one is not a programming language?
  1. ACOBOL
  2. BLINUX
  3. CORACLE
  4. DVisual Basic

Question 12

Computer system structure
A program compares two numbers to find which is greater. The action is carried out in
  1. Aarithmetic and logic unit
  2. Brandom access memory.
  3. Cread only memory.
  4. Dthe control unit.

Question 13

Data validation
A number has to be entered into a database. It is first checked by the database software to make sure that it is really a number and not a letter. This is an example of
  1. Averification.
  2. Bparity checking.
  3. Cformal checking.
  4. Dvalidation.

Question 14

Internet
The world wide web is the name that is given to
  1. Aall the linked documents that are held on a global network of computer systems.
  2. Bthe world wide e-mail system.
  3. Cthe cables and communication satellites that connect computer systems all over the world.
  4. Dthe organisation that regulates the internet.

Question 15

User interfaces
What are scroll bars used for?
  1. ATo close a window.
  2. BTo open a window.
  3. CTo see parts of the window which are hidden.
  4. DTo resize a window.

Question 16

Internet
A URL is
  1. Aa Universal Relocator.
  2. Ba Uniform Resource Locator.
  3. Ca Universal Resource Locator.
  4. Da Uniform Result Locator.

Question 17

Security
Disinfecting a file means
  1. Acleaning the computer.
  2. Bremoving a virus from an infected file.
  3. Cspreading a virus to another computer.
  4. Ddownloading a file containing a virus.

Question 18

Security
Which of the following is not a good security practice?
  1. ATelling other people your password.
  2. BChanging your password regularly.
  3. CNot using an obvious word or name.
  4. DCommitting your password to memory instead of writing it down.

Question 19

Applications
A local council wants to design and build a new bridge. Which one is the most appropriate software to use in the design?
  1. ACAD application
  2. BCAM application
  3. CDTP application
  4. DDrawing application

Question 20

Networks
Which one of these is the type of a network that links computers in different cities or countries?
  1. ALAN
  2. BMAN
  3. CPSTN
  4. DWAN

Question 21

Operating systems
Using My Computer, which of these criteria cannot be used to search for a particular document?
  1. AWho has ever opened the document
  2. BType of document (e.g. word, excel, etc)
  3. CWhen the document was last modified
  4. DSize of the document

Question 22

Networks
An intranet is best defined as
  1. Aa network which can only be accessed using an ISP.
  2. Ba world-wide collection of computer files connected by links.
  3. Ca network, using e-mail and web within a single organisation.
  4. Da network that is shared by more than one organisation.

Question 23

ICT careers
Which role in the IT department best suits a secretary?
  1. ADatabase administration
  2. BData capture clerk
  3. CNetwork administrator
  4. DSystems analyst

Question 24

Data validation
One method of validating a number such as a barcode is to perform a calculation to produce an extra character. The character appears at the end of the original number. This method of validation involves
  1. Aa parity check.
  2. Ba hash total.
  3. Ca check sum.
  4. Da check digit.

Question 25

Logic gates
The NAND is a combination of the
  1. Atwo AND gates.
  2. BNot and OR.
  3. CNot and AND
  4. Dexclusive AND.

Question 26

Systems analysis
Which is the best suitable method of data collection, when you need immediate response?
  1. Aquestionnaires
  2. Binterviews
  3. Cobservations
  4. Drecord inspection

Question 27

Flowcharts
Which of the following symbols represents a process?
  1. AA
  2. BB
  3. CC
  4. DD

Question 28

Systems analysis
The process of moving from an old system to a new system is called
  1. Aimplementation
  2. Bsystem design
  3. Csystem testing
  4. Danalysis

Question 29

Applications
The most efficient way to send a letter to all employees on the database would be to use
  1. Anormal data entry.
  2. Bcut and paste.
  3. Cmail merge.
  4. Dtext entry.

Question 30

Applications
Choose the most suitable package to provide a catalogue containing graphics.
  1. ADesktop Publishing
  2. BSpreadsheet application
  3. CWord processing application
  4. DMultimedia application

Question 31

User interfaces
Which one of the following best describes the GUI?
  1. AA graphics package for technical illustration.
  2. BTyping in commands to operate a computer.
  3. CProviding graphical online help to assist the computer user.
  4. DA system using windows, pointers and icons to operate a computer.

Question 32

Applications
Choose the most appropriate application to store students' information.
  1. AData logging application
  2. BCAD application
  3. CWord processor application
  4. DDatabase application

Question 33

Programming
Identify an error which is generated during execution of a program.
  1. ALogic error
  2. BRuntime error
  3. CSyntax error
  4. DTransposition error

Question 34

Systems analysis
Which one of these stages of software development is the last stage to be completed?
  1. AAnalysis
  2. BDesign
  3. CTesting
  4. DProgram

Question 35

Flowcharts
The programming construct shown, in which a condition is tested and a 'No' branch returns to repeat the earlier steps while 'Yes' leads to the end, is a
  1. Aselection
  2. Brepetition
  3. Csequence
  4. Dfixed

Question 36

Systems analysis
Which one of the following is not a method of finding out about existing systems?
  1. Aasking questions
  2. Bgetting people to fill questionnaires
  3. Cgetting the raw data into a form that can be processed by the computer
  4. Dinspecting any bits of paper and files

Question 37

Internet
E-commerce is
  1. Arequesting information from companies selling electronic equipment.
  2. Badvertising electronic goods on the internet.
  3. Cbuying of goods and services and paying for them on-line.
  4. Dbuying of electronic equipment from high street shops.

Question 38

Applications
Which of these options cannot be changed in the print dialogue box?
  1. AHow many copies are to be printed.
  2. BWhich pages are to be printed.
  3. CWhich printer to use.
  4. DThe font size the document should be printed.

Question 39

System software
The software used to allow a computer to communicate with a peripheral such as a printer is called
  1. Aa driver.
  2. Ban application.
  3. Ca utility.
  4. Da protocol.

Question 40

Health and safety
The best way to reduce the risk of Repetitive Strain Injury (RSI) is by performing one of the following actions.
  1. AUsing an adjustable chair.
  2. BSitting with your feet firmly on the ground.
  3. CUsing an anti-glare screen.
  4. DTaking frequent breaks from your work.

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