Bbt2215:Advanced Networking Concepts Question Paper
Bbt2215:Advanced Networking Concepts
Course:Bachelor Of Information Technology
Institution: Meru University Of Science And Technology question papers
Exam Year:2010
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QUESTION ONE – 30 MARKS
(a) Explain three factors to be considered when selecting a network transmission media. (6Marks)
(b) The figure below shows a typical Home Network Setup. Identify the network components labelled A to D. (4Marks)
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(c) (i) In the context of computer networking describe difference ‘Flooding’ and ‘Time To Live’. (2Marks)
(ii) In the term 10 BaseT, state technical meaning of its component parts; ‘10Base’ and ‘T’. (2Marks)
(d) Explain the following network hardware elements. (8Marks) (i) Network Interface Card (NIC) (ii) Switch (iii) Hub (iv) Router
(e) Distinguish between Authentication and Authorization, describing where they are encountered in the context of networking. (4Marks)
(f) AN Ethernet frame carrying a short IPv4 packet is sent to host = 74.125.39.105 (eth=00:10:30:BA:4C:21) on the internet from local host = 193.140.128.34. (eth-1A:2B:3C:4D:5E:6F) through a gateway = 193.140.128.1 (eth=DE:AD:BE:EF:00:11).
Analyze Ethernet routing by filling in the frame-grid shown below appropriately. (4Marks)
Dest addr Src addr Source IP Dest IP
QUESTION TWO – 20 MARKS
(a) In Local Area Networks (LANs) the ‘access methodology’ determine how devices share a common physical transmission medium. (i) Name the two main approaches to controlling sharing in wired networks. (2Marks) (ii) Explain how each approach controls the sharing of the medium. (10Marks)
(b) (i) State the key hardware components needed to implement a wireless LAN in a small office Environment. (2Marks)
(ii) Give four examples of a wireless LAN standard. (2Marks)
(iii) State the potential benefits and risks of using wireless technologies for businesses. (4Marks)
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QUESTION THREE – 20 MARKS
(a) List three of the BlueTooth profiles (3Marks)
(b) Compare and contrast the following network architectures: (i) Client/server and Peer-to-Peer (6Marks) (ii) Intranets and Extranets (5Marks)
(c) (i) With respect to the protocol dialog box shown below, determine value to be configured for Default Gateway of the Local Area Connection. (4Marks)
(ii)Justify your answer in (i) above (2Marks)
QUESTION FOUR – 20 MARKS
(a) (i) With well labelled diagram, describe the OSI ordered seven layer models. (3Marks)
(ii)Explain the functionality areas that each layer of your diagram in (a) above is responsible.
(7Marks)
(b) Compare and contrast the OSI model with the TCP/IP reference model by diagrammatically mapping the commonality between their relevant protocol layers. (4Marks)
(c) With respect to the IP address 171.16.10.22 and mask 255.255.255.240, determine (i) The subnet IP address (2Marks) (ii) The broadcast IP address (2Marks) (iii) A valid range for a hosts IP address (2Marks)
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QUESTION FIVE – 20 MARKS
(a) Good computer networks are a result of hard work by network designers and technicians who identify network requirements and select the best solutions to meet the needs of a business. State the ordered steps required to design a good network: (5Marks)
(b) (i) Explain the fundamental network design goals. (5Marks)
(ii)With the aid of diagram, describe the role of a firewall clearly showing where a firewall should be positioned with respect to protecting a local networking. (2Marks)
(c) A network technician designed a small network redundancy by configuring all the hosts in the same VLAN as depicted in the figure below.
With respect to the switch interconnection, determine giving reason, the link-type that will facilitate result to a no error for the LAN configuration. (8Marks)
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