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Q.1 Choose the correct answer 1. Performance is evaluated by two networking metrics: throughput 6 Marks and delay. We often need I2 Marks ) a. less throughput and less delay b. more throughput and less delay c. less throughput and more delay d more throughput and more delay 1 1 1 1 1 1 1 1000000000011000010101010101101010101011 is._L 2 Marks ] a. Unicast b. Broadcast c. Multicast d. None of the above 2 Marks) 3. The maximum data length for 10 Mbps Ethernet isbytes b. 1500 a. 1518 d. None of the above c. 1200 114 Marks) 4 Marks] Q.2 A. What are the four advantages of dividing an Ethernet LAN with a Switch? 2. 3. Page ETS (201720)-(EEC401 3)
B. List two advantages and two disadvantages for Star topology 14 Marksl Disadvantages C. Draw a hybrid topology with a Bus backbone and three Star networks three devices in each). 1 2 Marks) 2 Marks] D. What does NIC stands for ? Explain the purpose of NIC Page 4 of 14 O ETS: (201720HEEC4013)
E. A network with data bit rate 300Mbps and 30 sations is divided into two equal networks br determine the data bit rate for each station assuming that the traffic is going through h two equal networks by bridge the bridge 12 Marks) Q.3 Choose the correct answer 6 Marks] 1. The HCT consists of 17 campases. Every campus is a ESS. Every room is a BSS with an access Pont. Your laptop is connected to one of the BSSs. If you move your laptop from campus to another campus, this is considered as 2 Marks) a. BSS transition b. No transition e. ESS transition d. None of the above 12 Marks) 2. In IEEE 802.11, DIFS stands for a Distributed Interface System c. Distributed Interframe System b. Distributed Interframe Short d. None of the above 3. The Bluetooth protocol is used to allow devices to discover what services are 2 Marks) supported by each other, and what parameters to use to connect to them. a. L2CAP c. RFCOMM d. LMP Page 5 of O ETS. (201720) EEC4013)
0.4 A. Ex plain four disadvantages of Wi-Fi network [14 Marks)] 14 Marks) 2. 3, B. Compare between WEP &Firewall as security levels in WLAN 14 Marks) 2 Marks) C. What is the purpose of the NAV (Network Allocation Vector)? Page 6 of 14 O ETS. (201720 (EEC4013)
D. list four features of Bluetootl 14 Marks Q.5 Choose the correct answer 6 Marks 1. The_layer that responsible for reliable process-to-process message delivery 12 Marks) a. presentation b, data link c. network d. transport 2. Speaker node exists in 12 Marks) a. Distance vector protocol b. OSPF protocol c. Link state protocol d. Path vector protocol 3.- use(s) the rnapped address to translate an IPv6 address to an IPv4 address. 12 Marks) a. Dual stack b. Tunneling c. Header translation d. All of the above Page 7 ETS: (201720(EEC4013)
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