PAPER POLITEKNIK EXAM

1. SULIT FP303: COMPUTER NETWORK
2
SULIT
SECTION A: 50 MARKS
BAHAGIAN A: 50 MARKAH
INSTRUCTION:
This section consists of FORTY (40) objective questions. Mark your answers in the OMR form provided.
ARAHAN:
Bahagian ini mengandungi EMPAT PULUH (40) soalan objektif. Tandakan jawapan anda di dalam borang OMR yang disediakan.

2. SULIT FP303: COMPUTER NETWORK
3
SULIT
SECTION B: 50 MARKS
BAHAGIAN B: 50 MARKAH
INSTRUCTION:
This section consists of TWO (2) structured questions. Answer ALL questions.
ARAHAN:
Bahagian ini mengandungi DUA (2) soalan berstruktur. Jawab SEMUA soalan.
QUESTION 1
SOALAN 1
(a)
OSI Model has seven layers. Describe the main function for each layer listed below:
i. Presentation layer
ii. Session layer
iii. Transport layer
iv. Network layer
Model OSI mempunyai tujuh lapisan. Terangkan fungsi utama setiap lapisan di bawah:
i. Lapisan pembentangan
ii. Lapisan sesi
iii. Lapisan pengangkutan
iv. Lapisan rangkaian
[8 marks]
[8 markah]
CLO1 C2

3. SULIT FP303: COMPUTER NETWORK
4
SULIT
(b)
Describe TWO (2) classes of IP address that are commonly used in a network environment. Give an appropriate example of public and private IP address for each of the class.
Huraikan DUA (2) kelas alamat IP yang biasa digunakan dalam persekitaran rangkaian. Berikan satu contoh yang sesuai alamat public IP dan private IP bagi setiap kelas yang dinyatakan.
[6 marks]
[6 markah]
(c)
Network can be classified into categories that are based on the range of the geographical area. Briefly describe about the network classifications below :
i. Local Area Network
ii. Metropolitan Area Network
iii. Wide Area Network
Rangkaian boleh diklasifikasikan kepada beberapa kategori mengikut julat kawasan geografi.Terangkan secara ringkas tentang klasifikasi rangkaian berikut:
i. Rangkaian Kawasan Setempat
ii. Rangkaian Kawasan Metropolitan
iii. Rangkaian Kawasan Luas
[6 marks]
[6 markah]
(d)
Domain Name Server (DNS) has relationship between domain name and IP addresses. Explain the DNS function. If all DNS servers could be “crashed” (taken offline), what would happen to the Internet?
Domain Name Server (DNS) mempunyai hubungan di antara nama domain dan alamat IP. Jelaskan fungsi DNS. Sekiranya DNS server crashed atau offline, apa akan terjadi pada Internet?
[5 marks]
[5 markah]
CLO1 C2
CLO2 C2
CLO1 C3

4. SULIT FP303: COMPUTER NETWORK
5
SULIT
QUESTION 2
SOALAN 2
(a)
Nowadays, wireless networks has become an available options of network compared to wired networks. This network allowed the users to access any other networks wherever it wants without limited area connections.
Kini, rangkaian tanpa wayar telah menjadi satu pilihan berbanding rangkaian berwayar. Rangkaian ini membenarkan pengguna untuk mengakses mana-mana rangkaian yang lain tanpa menghadkan kawasan penyambungan.
i. List out THREE (3) types of wireless network classification.
i. Senaraikan TIGA (3) jenis klasifikasi rangkaian tanpa wayar.
[3 marks]
[3 marks]
ii. Describe TWO (2) ways to avoid WLAN attack
ii. Terangkan DUA (2) cara untuk mengelakkan serangan WLAN
[6 marks]
[6 marks]
(b)
i. Show the differences between virus, worm and trojan. Give an example each of
the answer.
Tunjukkan perbezaan antara virus, worm dam trojan. Beri satu contoh bagi setiap
jawapan.
[6 marks]
[6 marks]
ii. Describe the Brute Force attacks.
Terangkan mengenai serangan Brute Force.
[2 marks]
[2 marks]
CLO1 C2
CLO2 C2
CLO1 C3
CLO3 C2

5. SULIT FP303: COMPUTER NETWORK
6
SULIT
(c)
Describe the purpose of Helpdesk in network troubleshooting.
Terangkan tujuan Helpdesk dalam membaikpulih rangkaian.
[3 marks]
[3 marks]
(d)
Figure 2
Rajah 2
Refer to Figure 2. State the TWO (2) problems that occurred. Explain how to troubleshoot the problem.
Rujuk pada Rajah 2. Nyatakan DUA (2) masalah yang timbul. Jelaskan bagaimana untuk membaikpulih masalah tersebut.
[5 marks]
[5 marks]
SOALAN TAMAT
CLO3 C3
Coaxial cable