Download Information and Communication Technology Full Course

Centre Number
71
Candidate Number
General Certificate of Secondary Education
2007
Information and Communication Technology
Paper 2
Foundation Tier
G5802
Full Course
[G5802]
THURSDAY 24 MAY, AFTERNOON
TIME
1 hour.
For Examiner’s
use only
INSTRUCTIONS TO CANDIDATES
Write your Centre Number and Candidate Number in the spaces
provided at the top of this page.
Write your answers in the spaces provided in this question paper.
Answer all eleven questions.
Question
Number
1
2
3
4
INFORMATION FOR CANDIDATES
The total mark for this paper is 80, including a maximum of 4 marks
for quality of written communication.
Figures in brackets printed down the right-hand side of pages indicate
the marks awarded to each question or part question.
5
6
7
8
9
10
11
QWC
Total
Marks
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Marks
Answer all eleven questions
Examiner Only
Marks
1
Remark
Lycos and Altavista are both examples of sites with search engines.
(a) What is a search engine?
_________________________________________________________
_______________________________________________________ [1]
(b) Mark wants to search the Internet for information from government
websites on the Data Protection Act (1998) but not the Data Protection
Act (1984).
Complete the complex search below to help him find the correct
information.
[3]
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2
EnergyFlow Gas Company creates customer bills using batch processing.
Examiner Only
Marks
Remark
A master file with the following fields holds data on their customers.
Customer Name
Number
Current Units
Address Last
Used
Meter
Meter
Reading Reading
Total
Their transaction file has the following fields.
Customer Current
Number Meter
Reading
(a) What is batch processing?
_________________________________________________________
______________________________________________________ [1]
(b) What is a master file?
_________________________________________________________
______________________________________________________ [1]
(c) What is a transaction file?
_________________________________________________________
______________________________________________________ [1]
(d) Customers’ Current Meter Readings are recorded on OMR sheets.
What does OMR stand for?
_______________________________________________________ [1]
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3
“Mobiles 4 Many” cannot decide between a flat-file and a relational
database system to keep track of customers and their mobile phone orders.
Examiner Only
Marks
Remark
(a) Complete the following sentences using the words below:
redundancy
correct
security
Relational databases can improve data _______________________ as
the user only has access to data that they need. They also help reduce
data _____________________________ which means data is not
entered more than once. This helps with data integrity which means
the data is more likely to be ___________________________.
[3]
(b) What is a flat-file database?
_________________________________________________________
_______________________________________________________ [1]
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They have decided to use a relational database. They have created the
following two tables but cannot decide which field to use to link them
together.
Examiner Only
Marks
Remark
Table 1
Customer
Number
Customer
Name
Address
Home
Telephone
Number
Table 2
Customer
Number
Mobile Tel
Number
Make
Model
Date of
Purchase
(c) Why should they use Customer Number to link the two tables?
_________________________________________________________
_________________________________________________________
______________________________________________________ [1]
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4
Brenda’s Bakery is expanding to include shops all over Northern Ireland.
Brenda wants to link all her stores via the Internet, but does not know what
the following things mean.
Examiner Only
Marks
Remark
(a) Explain what is meant by Bandwidth.
_________________________________________________________
______________________________________________________ [1]
(b) What does PSTN stand for?
_________________________________________________________
______________________________________________________ [1]
(c) What does ADSL stand for?
_________________________________________________________
______________________________________________________ [1]
(d) Brenda would like to be able to use videoconferencing, but cannot
decide if she should use a standard telephone line or broadband.
Which would you recommend? Give one reason for your answer.
Recommend: __________________________________________ [1]
Reason: _________________________________________________
______________________________________________________ [1]
(e) Apart from a computer, list two items of hardware Brenda will need to
connect to the Internet.
1. ______________________________________________________
2. ___________________________________________________ [2]
(f) What is Network Protocol?
_________________________________________________________
______________________________________________________ [2]
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5
A school is expanding its Local Area Network (LAN) to include a wireless
connection.
Examiner Only
Marks
Remark
Printer
Computer Suite
Router
Student Laptop
Wireless
Connector
Student Laptop
Server
Internet
(a) Give one advantage of a wireless connection.
_________________________________________________________
______________________________________________________ [1]
(b) Apart from security, give one disadvantage of using a wireless
connection.
_________________________________________________________
______________________________________________________ [1]
(c) What is a router used for?
_________________________________________________________
______________________________________________________ [1]
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(d) Give one way the network server can be used to keep data secure.
Examiner Only
Marks
Remark
_________________________________________________________
______________________________________________________ [1]
(e) What type of storage media should the school use to back up the
network server?
_________________________________________________________
______________________________________________________ [1]
(f) How often should they back up the network server?
_________________________________________________________
______________________________________________________ [1]
(g) Pupils at the school can use the Intranet and the Internet. What is an
Intranet?
_________________________________________________________
______________________________________________________ [1]
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6
Supermarkets use barcode scanners to enter product details at an Electronic
Point of Sale (EPOS) Terminal.
Examiner Only
Marks
Remark
(a) Circle two output devices in the EPOS system shown below.
[2]
(b) Barcodes contain a check digit. Name one other item of data held on a
supermarket barcode.
______________________________________________________ [1]
(c) Put the following processes in order using the numbers 1 – 5 to show
what happens when an item is scanned at an EPOS.
Process
Order
Till beeps if the barcode is found
Barcode is scanned using scanner
Receipt printed
Barcode number is compared to those held in the
supermarket database
Price displayed
[5]
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(d) Give one advantage of using barcode scanners to enter product details
in a supermarket.
Examiner Only
Marks
Remark
______________________________________________________ [1]
(e) Check digits help validate the data being entered at the POS. There are
many other validation checks carried out in computer systems.
(i) What do each of these validation checks do?
Presence Check: ______________________________________
__________________________________________________ [1]
Type Check: __________________________________________
__________________________________________________ [1]
Length Check: ________________________________________
__________________________________________________ [1]
(ii) Select the most appropriate validation check for the following data
items. Each check can be used once only.
Presence Check
Type Check
Length Check
Data
Validation Check
Staff Number (each employee
must have a Staff Number)
Staff Name (must have at least
five characters)
Start date (must be a date)
[3]
(f) Explain one method of data verification.
_________________________________________________________
_________________________________________________________
_________________________________________________________
______________________________________________________ [2]
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7
Martin wants to buy a new entertainment PC and has found the following
one in PC Universe.
Examiner Only
Marks
Remark
• 2.8 GHz processor
• 2 MB Cache
• Microsoft Windows XP Media Centre
• 1024 MB RAM
• 4 GB ROM
• 400 GB Hard Disk Drive
• Multi-Format Dual Layer DVD RW Drive
• Wireless Keyboard + Mouse
• 32" HD Ready LCD TV
(a) The PC uses the Microsoft Windows Operating System.
List two jobs carried out by an Operating System.
1. ______________________________________________________
_________________________________________________________
2. ______________________________________________________
______________________________________________________ [2]
(b) Microsoft Windows is said to be a GUI. What does GUI stand for?
_______________________________________________________ [1]
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(c) Microsoft Windows uses a WIMP interface. What does WIMP stand
for?
Examiner Only
Marks
Remark
_________________________________________________________
______________________________________________________ [1]
(d) Give one reason why an entertainment PC might need a 400 GB Hard
Disk.
_________________________________________________________
______________________________________________________ [1]
(e) Put the following memory types in the correct column to show which
are volatile and which are non-volatile.
RAM
ROM
Hard Disk
Volatile
Cache
Non-volatile
[4]
(f) What do the letters ROM stand for?
______________________________________________________ [1]
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8
Sitting incorrectly at a computer can cause health problems.
Examiner Only
Marks
Remark
(a) List two problems with the way this pupil is sitting at his PC and name
the injury each may cause.
Problem 1 ________________________________________________
_________________________________________________________
Injury: _______________________________________________ [2]
Problem 2 _______________________________________________
_________________________________________________________
Injury: _______________________________________________ [2]
(b) List two ways this pupil could improve his computer work area to
improve health and safety.
1. _______________________________________________________
_________________________________________________________
2. _______________________________________________________
______________________________________________________ [2]
(c) Using computers for a long period of time can cause RSI. What does
RSI stand for?
______________________________________________________ [1]
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9
David has built a new conservatory. His heating system uses a computer
to keep the temperature between 24 °C and 28 °C at all times. The diagram
below shows the system he uses.
Examiner Only
Marks
Remark
Sensor
Heater
Computer
(a) What type of sensor is used in this system?
______________________________________________________ [1]
(b) Name two other devices in the home that use computers for control.
1. ____________________________________________________ [1]
2. ____________________________________________________ [1]
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10 Chris is entering a movie-making competition in school. He has to use a
MIDI keyboard to record the movie theme tune.
Examiner Only
Marks
Remark
(a) What does MIDI stand for?
______________________________________________________ [1]
(b) Chris has carried out lots of research watching old movies on
videotape and DVD. Give two advantages of DVD over videotape.
1. _______________________________________________________
_________________________________________________________
2. _______________________________________________________
______________________________________________________ [2]
(c) Tick (✓) the file type Chris would use to save his video file.
File Type
Tick
MP3
MPEG
CSV
[1]
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11 Richardson’s School of Music have created an Internet course for pupils to
study music from home. The course has sample music for pupils to listen
to and play along to.
Examiner Only
Marks
Remark
Explain the changes this might mean for school, staff and students.
Think about
• Where staff and students live.
• Think about the technology they might need.
• How it might change how they work/study.
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
_________________________________________________________ [6]
Quality of written
communication
THIS IS THE END OF THE QUESTION PAPER
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1 – 15-01-07RR
2 – 22.2.07BP
Permission to reproduce all copyright material has been applied for.
In some cases, efforts to contact copyright holders may have been unsuccessful and CCEA
will be happy to rectify any omissions of acknowledgement in future if notified.
S – 1/07 – 7-160-1
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