This document contains sample answer schemes for multiple choice and structured questions for a computer science exam. It includes two sections - Section A contains the answers for multiple choice questions 1-25. Section B contains structured questions with answers for questions 26-30, including explanations for security measures, threats, differences between open source and proprietary software, network architectures, and user interface design principles. The document also provides a marking scheme for each answer indicating the number of marks allocated per part of the answer.

1. SKEMA JAWAPAN SECTION A
Question No.
No. Soalan
Candidate’s Answer
JawapanCalon
Marks
Markah
1
(i) First Generation 1
(ii) Second Generation 2
2 A 3
3
(i) B 4
(ii) C 5
4
(i) Natural and Environmental threat 6
(ii) Hacker 7
5 A 8
6
(i) A 9
(ii) C 10
7 Menu driven Interface 11
8 Fix the RAM 12
9 C 13
10
(i) Ring 14
(ii) Bus 15
11
(i) Analog / Digital 16
(ii) Digital / Analog 17
12 Extranet 18
13 Video OR Animation 19
14 Linear 20
15 D 21
16 C 22
17 High Level 23
18 Structured 24
19 Compiler 25
20 Selection control structure 26
21
(i) Z 27
(ii) Y 28
22
(i) Hardware or software 29
(ii) Software or hardware 30
23
(i) Field 31
(ii) Record 32
24
(i) Table 33
(ii) Report 34
25
(i) Insert 35
(ii) Delete 36

2. SKEMA JAWAPAN SECTION B
27 a. S – Open source software/ perisiansumberterbuka
T- Proprietary software/ perisianhakmilik
b. Differences
S- OPEN SOURCE SOFTWARE T-PROPRIETARY SOFTWARE
Open source usually comes
without warranty and after sales
support should the software fail
or malfunction
software offers a stable system
with support if the software fails
or malfunctions.
The source code are available to
users and they have the rights
to modify them.
Customising the software is
nearly impossible because when
users buy proprietary software
will receive binary version of the
program, not the code as the
code is the maufacturer’s trade
secret
1
1
2
No ANSWER M
26 a) Name of security measure: Firewall 1
Explain: Firewall is a piece of hardware or software which
functions in a networked environment to prevent some communications
forbidden by the security policy.
1
b) Threat: Hacker/hacking 1
Explain:It is defined as unauthorised access to the computer system by a hacker. 1
28. a) i) Client Server 1
ii) Peer-to-Peer (P2P) 1
b) Architecture X Architecture Y
2
Server has the control ability while
clients don”t
All computers have equal ability
Higher cabling cost Cheaper cabling cost
It is used in small and large
networks
Normally used in small networks with
less than 10 computer
Easy to manage Hard to manage
Install software only in the server
while the clients share the software
Install software to every computer
One powerful computer acting as
server
***[any one answer ,2 M]
No server is needed

3. 29. (a) Consistency – interface design is in harmony and the same applies to
all screen in a software program
marks]
2
NAVIGATION - Navigation means users can move around the menus,
help files or other screens in a system
SEARCH -Search means the system enables users to search keywords or
glossary. The user interface should have a search function.
LEARNABILITY - Learnability means the system provides support information
and help files to make the system easy to understand.
FLEXIBILITY -Flexibility means a user has the authority to navigate
through all the sections without any limitations.
[2 marks for one answer-
choose one]
2
30. (a) (i) Yes
(ii) Values may change during the course of the program
1
1
(b) B
“You go to Group B “
1
1

4. SKEMA JAWAPAN SECTION C
NO ANSWER
31
(a) primary key for SUPPLIER table = SupplierID [1 mark]
primary key for STATIONERY table = StationeryID [1
mark]
Justify your answer.
Unique value, /because no two supplier or stationery can have same ID.[1 mark]
(b) query design output.
NOTA:
i) ketiga2 field name betuldapat 1m.
ii) semua data dalamsaturekodbetuldapat 1m. semunyaada 3 rekod.
No. Answer Mark
32. a) i) Topology A is Bus topology
Topology B is Star topology
1
1
ii)
Topology A Topology B Mark
there is a single central cable
(backbone) and all computers
and other devices connect to it
there is a central host
and all nodes
connect to it.
Both
correct
= 1
Computers and other devices can
be attached and detached at any
point without disturbing the rest
of the network.
If one node fails, only
that node is affected.
The rest continue to
operate normally.
Both
correct
= 1
2
b)
Intranet
a private computer network
an internal network accessible by authorised individuals within an
organisation
1
1
1
[1 mark]
[1 mark]
[1 mark]
[1 mark]

5. 33 (a) (i)name : string [1mark]
score : integer [1mark]
(ii) average score : double / floating point [1mark]
(b)
Outside border / box OR title [1]
Input [2]
Correct output [1]
Program To Calculate Average Score
Name :
Score Day 1:
Score Day 2 :
The average score is 9
James
10
8
Calculate Exit