S5 ICT(Compulsory)/Final Exam/12-13/P.1
HKTA Tang Hin Memorial Secondary School
S5 Information & Communication Technology Compulsory Part
2012 – 2013 Final Examination
Question-Answer Book
Paper 1 Section B
Date:
Time:
4th June, 2013
8:30 a.m. – 10:30 a.m.
Instructions:
1. The paper consists of 12 pages.
2. Answer ALL questions in this paper. Put all your answer on this Question-Answer Book.
3.
4.
Put all your answers of Section A in the MC Answer sheet provided.
The full mark of this paper is 100.
Name: ________________________________ Class: ___________
Class No.: _____________
S5 ICT(Compulsory)/Final Exam/12-13/P.2
Section B Long Questions (60%)
Question 1 (12 marks)
Mr. Yip is an ICT teacher. He has been teaching IT related subjects for over 10 years. He has kept a
lot of students’ homework and projects in electronic format. However, he did not organize the files
very well therefore he is going use an 10-year old computer with a new hard disk and reorganize the
files in a drive. He has checked that the old computer works properly.
(a) Suggest two possible hardware problems of Mr. Yip’s idea.
(2 marks)
(b) Suggest a low-cost solution for each of the problems in (a).
(2 marks)
(c) Suggest three tasks that Mr. Yip could do on the new hard disk before transferring the files
from his computer to the new hard. State the reason of doing so for each task.
(3 marks)
Furthermore, in order to save system resource, Mr. Yip decided to use an unpopular operating
system with command line interface only. There are still some useful utility programs for him to
handle specific problems in the computer.
(d) Apart from resource saving, suggest another benefit to Mr. Yip for using CLI OS.
(1 mark)
S5 ICT(Compulsory)/Final Exam/12-13/P.3
(e) Explain the term “utility program”
(1 mark)
(f)
(2 marks)
Suggest and describe two utility programs that are useful to Mr. Yip.
(g) Describe a possible problem of using an unpopular OS.
(1 mark)
S5 ICT(Compulsory)/Final Exam/12-13/P.4
Question 2 (12 marks)
Katy is a graphic designer. One day, she bought a new graphical editing software, however she felt
it takes longer time to complete an editing task on an image than the previous software. Therefore,
she decided to upgrade the computer by the follow methods.
(I) Replace the CPU with a faster CPU
(II) Add more RAM to satisfy the optimum requirement of the new software.
Assume that her computer hardware and software have no compatible problem with the new
hardware.
(a) Besides the clock rate, suggest two attributes of CPU that determine its speed.
(2 marks)
(b) Explain why faster CPU could speed up image editing process.
(1 mark)
(c) State one difference between RAM and Hard Drive.
(1 mark)
(d) Explain why larger RAM size could speed up image editing process.
(1 mark)
(e) Apart from speeding up application software, suggest two other benefits to the computer
system if more RAM is added into the computer system.
(2 marks)
S5 ICT(Compulsory)/Final Exam/12-13/P.5
(f)
Suggest Katy two free-of-expense ways to speed up the computer system.
(2 marks)
(g) Describe and explain the change of memory usage by the graphical editing software if Katy
performs the following tasks.
(i)
Open an image from the hard drive.
(1 mark)
(ii)
Several editing functions (e.g. move, rotate, adding filters etc…) are applied (assume
the resolution of the image does not change).
(1 mark)
(iii)
Close the application after saving her image file.
(1 mark)
S5 ICT(Compulsory)/Final Exam/12-13/P.6
Question 3 (12 marks)
Fanny wants to browse a web site called CDE HONG KONG. She enters the web site address
http://www.cdehongkong.edu .
(a) Which part of the above web site address stands for communication protocol? State the
function of the above communication protocol.
(2 marks)
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(b) In order to browse the web page through the Internet, two other communication protocols
should be used besides the protocol stated in part (a). Name the two protocols and state their
functions respectively.
(3 marks)
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(c) Write down the top-level domain for the above web site address. According to the coding,
which type of organization does CDE HONG KONG belong to?
(2 marks)
________________________________________________________________________________
________________________________________________________________________________
There are over 100 computers in the organization. All of them can browse web pages through
Internet and watch video stream smoothly.
(d) Other than broadband, what is the Internet access method used by the organization? (1 mark)
________________________________________________________________________________
After running Speed test, students found that IP addresses of their computers were the same, i.e.
220.0.242.144.
(e) Why were their IP addresses the same in the organization?
(1 mark)
________________________________________________________________________________
________________________________________________________________________________
S5 ICT(Compulsory)/Final Exam/12-13/P.7
Fanny finds that she cannot open the web pages of CDE HONG KONG., but she knows that the IP
address of the web site is 68.145.15.28. Therefore she inputs http://68.145.15.28 into the web
browser, and then she accesses the web pages of CDE HONG KONG successfully.
(d) State two possible reasons why Fanny cannot use http://www.cdehongkong.edu to enter the
web site.
(2 marks)
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
Fanny finds that IP addresses of her computer at home was not the same at different times.
(g) Why is the IP address of her computer not the same at different times?
(1 mark)
________________________________________________________________________________
________________________________________________________________________________
S5 ICT(Compulsory)/Final Exam/12-13/P.8
Question 4 (12 marks)
The following network diagram shows the network of a small cake shop.
A
C
B
B
Device A connects the cake shop network with the Internet. In order to reduce the running cost,
corporate broadband is used to connect to ISP to connect to the Internet.
(a) What device is missing between device A and the Internet? Describe its function briefly.
(2 marks)
(b) Explain why two sets of device B is needed.
(1 mark)
(c) Other than the 2 types of devices indicated in the diagram, name 2 other devices that could be
connected to device C wirelessly.
(2 marks)
(d) In the following TCP/IP stack, write the device letter next to the layer to indicate the layer that
the device operates at.
(3 marks)
TCP/IP Stack
Device letter
5 Application layer
4 Transport layer
3 Network layer
2 Data link layer
1 Physical layer
S5 ICT(Compulsory)/Final Exam/12-13/P.9
(e) The following image shows the back and the front of an IP camera in the cake shop.
(i)
How many MAC addresses does this IP camera have?
(ii) Name the connecting port and cable used for the wired connection.
(1 mark)
(1 mark)
The cake shop provides Free Wifi access for the customers. The pre-shared key (PSK) will be given
to the customer to connect upon request.
(f) It is found that some customers downloaded some programs to discover the PSK. Give 2
reasons that such program could easily discover the PSK.
WPA PSK FOUND
(2 marks)
S5 ICT(Compulsory)/Final Exam/12-13/P.10
Question 5 (12 marks)
The following is a spreadsheet about Sam’s retail company:
Consider the following pivot table:
Figure 1
Figure 2
(a) How can the above pivot table be produced with the help of figure 2?
(2 marks)
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
S5 ICT(Compulsory)/Final Exam/12-13/P.11
(b) How can the above pivot table be produced with the help of figure 2?
(2 marks)
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
(c) How can the above pivot table be filtered to remove the products manufactured by Apple and
Sony?
(2 marks)
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
He wants to increase the profit from $10400 to $20000 by changing the salary of staff.
(d) How can he achieve this profit by using the method “Goal Seek”?
(2 marks)
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
S5 ICT(Compulsory)/Final Exam/12-13/P.12
King’s College is a secondary school with 1200 students. The students at King’s College come from
30 primary schools in the district.
There is a database file STUDENT containing the records of all students. It has the following
structure:
Field name
Type
Width
Description
Example of Data
1
EN_NAME
Character
25
Name in English
HUNG KA KA
2
CLS_NAME
Character
2
Class
5D
3
CLS_NO
Numeric
2
Class Number
37
4
SEX
Character
1
Sex
M
5
DOB
Date
10
Date of Birth
12/31/1985
6
PHONE
Character
8
Telephone Number
9876 5432
7
ADDRESS
Character
50
Home address
123, KA HO HSE, KA YI EST,
MONG KOK
8
PRIM_SCH
Character
50
Name of primary school
MING TAO PRIMARY SCHOOL
attended
e) Assume the database file STUDENT is already opened in the current work area. Write an SQL
statement to print out the name in English, the class number, the sex and the telephone number
of each student in class 1B.
(2 marks)
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
f) State ONE disadvantage of storing the names of the primary schools attended in the database
file STUDENT.
(1 mark)
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
g) Describe how to overcome the disadvantage in (f) without losing any information.
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
END OF PAPER
(1 mark)
S5 ICT(Compulsory)/Final Exam/12-13/P.13
S5 ICT(Compulsory)/Final Exam/12-13/P.14
Describe TCP/IP layer
IP camera setting
Wifi address 00-25-00-4d-10-14
Wired address 02-13-70-e2-f0-97
Protocol used in sending email
A customer use cracking
WPA  safer one?
Legal?
Suggest how to choose the pre-shared key.