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1 Mike has designed a LAN with the configurations shown in the following diagram.
Computer 1
Computer 2
UTP
UTP
5-port switch
UTP
Network laser printer
(a) (i)
Describe the main function of the 5-port switch.(1 mark)
(ii) State one network device that can be used to replace the 5-port switch.(1 mark)
(iii) Except the existing two computers, how many additional computer(s) can be plugged into the
5-port switch?(1 mark)
(b) (i)
Suggest another type of cables that can replace the UTP cables used in the design. State one
advantage and one disadvantage of this new type of cables over UTP cables.(3 marks)
(ii) Which network device should each of the computers shown in the diagram have so that the
computers can be connected to the 5-port switch?(1 mark)
(c) (i)
If Mike has subscribed to a broadband Internet service, which network device should he connect to
the LAN? State the function of this network device in this situation.(2 marks)
(ii) If five new computers are added to the LAN, an extra 5-port switch will be required. Draw a new
diagram with the additional five new computers and the device mentioned in part (c) (i).(3 marks)
2 A small company has hired Mike to construct a LAN for 10 workstations in the office which is located in a
commercial building in Central.
(a) State three kinds of resources that can be shared by the LAN.(3 marks)
(b) Mike thinks the network infrastructure should be peer-to-peer instead of client/server.
(i)
State two advantages of a peer-to-peer network.(2 marks)
(ii) However, you suggest client/server network is a better choice. State two reasons to support your
suggestion.(2 marks)
(c) The boss has been approached by a salesperson about setting up a broadband connection at his home.
The monthly fee is $150. He then asks Mike to set up such a broadband connection for his office.
(i) Mike tells him that it is not feasible. Why? (1 mark)
(ii) Suggest one feasible way to set up a broadband connection in the office. (1 mark)
(iii) The boss wants to let all the computers access the Internet. However, he thinks establishing a
broadband connection for every computer is too expensive. Suggest one way that can satisfy his
needs with only one broadband connection. Illustrate your answer with the help of a block
diagram that should include at least the following items: a broadband modem, an office network
and the Internet.(3 marks)
Q1Answer
(a) (i) Connect computers together to form a LAN. (1)
(ii) Hub (1)
(iii) 2 (1)
(b) (i) STP cables (1)
Advantage: STP cables are less susceptible to electromagnetic interference. (1)
Disadvantage: STP cables are more expensive. (1)
(ii) NIC (1)
(c) (i) Router (1)
It is used to connect Mike’s LAN to the Internet. (1)
(ii)
Computer 3
Computer 4
Computer 1
5-port switch
Computer 6
Computer 5
Computer 2
5-port switch
Router
Internet
(Correct location of the router and the Internet: 1
Correct location of the extra 5-port switch: 1
Correct location of the additional computers: 1)
Network laser printer
Q2Answer
(a) Hardware, (1) information / file (any one × 1) and software application (1)
(b) (i)
The set-up cost is lower. (1)
It is easier to set up. (1)
(ii) Data is centralized for easier management and more efficient user access. (1)
Security is controlled in a centralized manner that can be managed more efficiently. (1)
(c) (i) Domestic broadband connections cannot be set up for commercial uses usually. (1)
(ii) He should apply for a business broadband connection which is much more expensive. (1)
(iii) He can make use of a wireless router to connect the office network and the broadband modem
together. (1)
Office
network
Wireless
router
Broadband
modem
Internet
(Correct order of the broadband modem, the router and the office network: 1 Overall: 1)