■

� Government of Western Australia

� School Curriculum and Standards Authority

Computer Science General course

Externally set task 2018

EST CODE CSCGT

FOR OFFICE USE ONLY

-

50

■

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• black or blue pen, 28 pencils• sharpener• eraser• highlighters

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0065034

Strong sample

HPRM 2018/43721v2

Copyright

© School Curriculum and Standards Authority, 2018

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EXTERNALLY SET TASK

Total time for the task: Total marks:

Weighting:

50 minutes

41 marks

3

15% of the school mark

This page has been left blank intentionally

See next page

COMPUTER SCIENCE GENERAL

0065034

COMPUTER SCIENCE

GENERAL

4 EXTERNALLY SET TASK

Question 1

Describe the function of the components of the central processing unit listed below.

Register:

�j�'»:evS a..1S:5+ tl-,e.., CP f) f V11-1di'li1s �G Sl�j ,e(�-lo,"'� Joh-,

Qf )r,ectf,f;, v,, ,h6 etc � P ryr"'"" a.ivdeC I fb Ctlll'lll�ev r , �;�etS Store- il/\5r-v:rx±folt!5

Arithmetic logic unit:

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1

Program counter:

(6 marks)

�--':)r.,-�« w:;tk( V' _:_tl.e,- C P (j , , .}-- pa;w-5 fo i¾: w;x::f- r bSf�;-�V\

+a k y�f.,;eved,

See next page

EXTERNALLY SET TASK 5 COMPUTER SCIENCE

GENERAL

Question 2 (5 marks)

(a) A computer user has discovered that their printer is not working and calls a technician forassistance. Outline two steps the technician might advise the computer user to take to

(b)

troubleshoot the problem. (2 marks)

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Explain the process of troubleshooting a computer hardware fault. (3 marks)

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t'YI

See next page 0065034

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EXTERNALLY SET TASK 7 COMPUTER SCIENCE

GENERAL

(a) Write the function required to total all the fees in cell K9, labelled A on the spreadsheet.

(2 marks)

(b) Write the function required to average all the fees in cell K10, labelled Bon thespreadsheet. (2 marks)

=A-VERA-6:E [�4-:k7.

(c) Write the function required to count the number of Yearly Memberships in cell K11,

(d)

(e)

labelled C on the spreadsheet. (2 marks)

=corM{T [ k 4-: k7)

Write the function required to lookup the Fees Paid based on the Payment Type in

cell J6, labelled D on the spreadsheet. (3 marks)

== VLDAkrA� (14- : 1 7 , A- [4:: c t b 1 2 , h41 5 t )

Describe how the table labelled F on the spreadsheet is used. t/1'5

__,,_\;\___,_..Jed"-'1.--tt-"-+---fti'---' =-l!;- -""vl..:.....::>"'r'Z�Q-1---"'fu"'--'---v_f:beµc=-_�-'---"/,,'-=--"'t:t:�ci-; Dli'.15" r"'

(2 marks)

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See next page 0065034

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EXTERNALLY SET TASK 9 COMPUTER SCIENCE

GENERAL

(a) Identify one issue with the integrity of the data and explain why it is an issue. (4 marks)

Issue: ___.c��o�w-_S,_,___Co=/"'�M�""�f-+1 _L_;"'-J-+---�Qc"'-L�----- --- --

Explanation: Roa fl/\_ ,·5 yef} r yt(;tltY d)-fv 'I\ +¼ :s Gtiol" 1,e,,J fQ :s:-,µ,5 ,· E Jl,.e,

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(b) Identify one data redundancy issue with the data and explain why it is an issue. (4 marks)

Issue: L :v:t9 (a'.lt½, ;5 {A� fl-re,e,c h(\,\ es

Explanation: l,v� (le.t f:hu Y@Q,M ;5 � I ,s+-cd t�✓ee, i[rvy 5

emk fcc.5 &I\ J ,-ft eY P"t ife,M i ;<,t-ed \ Jf.,3 /'A(,N-) H- j"<j

�;ff,01{-k f0 lit� I �l"Atf:6 �-1- av-� iVl{al✓er ½ f;�f f','-e,tJ

See next page 0065034

COMPUTER SCIENCE GENERAL

Question 5

10 EXTERNALLY SET TASK

(11 marks)

A pet shop would like you to design a database for its products. Data for two of the products it

sells is shown below. Use this information to answer the questions that follow.

Code: Dogbed104 Code: Catbrush89

Product: Pied dog bed Product: Jones cat brush

Description: Sheepskin dog bed - Description: Rounded cat brush Medium size for long hair

Quantity: 8 Quantity: 9

Cost Price: $15.00 Cost Price: $3.00

Vendor: Better Beds for Pets Vendor: Jones Brush Supplies

(a) Complete the table below by listing the fields required to design the database for the twoproducts and the data type for each field. (6 marks)

Field Data type

Cook \rf--

Pvodr,c-1- +�xt

0-csQy; r+rt)� +e:r+-

� �qvd-:+.., ·�vV

(A51- rt:ce,, CwVV"c-1 V

viK:kr 4-vc.-t--

See next page

EXTERNALLY SET TASK 11 COMPUTER SCIENCE

GENERAL

(b) Identify the field in the table that you would use as a primary key in the database.

(c)

(d)

(1 mark)

Write a query to list all the Cat products that would be stored in the database. (3 marks)

fie,(J � 0-Je, - 5brf5 w1--rft.i :::- Cot+-

State the function of a primary key in a database. (1 mark)

0\ fA"I •� (de,vi4 •'fi'.tvf' v"'•-ci/1 &V\ (e,,, v6eJ +9 Yet,.,-:�� ru•�·,

��:epv.tr

J,�or�tcA ___________________ _

End of questions 0065034

Published by the School Curriculum and Standards Authority of Western Australia

303 Sevenoaks Street

CANNINGTON WA 6107