2.For each protocol listed below, indicate whether it is a controlled access protocol, a random access protocol, or a channelization protocol.

a.Polling _____________________

b.Reservation _____________________

c.TDMA ______________________

d.CSMA/CD _____________________

e.FDMA _____________________

f.Token Passing ______________________

g.CDMA _____________________

h.CSMA/CA _____________________

3. Match the Cisco command line interface prompt with the mode.

_____ Switch>	A. Configuration mode
_____ Switch#	B. Interface level within configuration mode
_____ Switch(config)#	C. Privileged EXEC mode
_____ Switch(config-if)#	D. User EXEC mode

4. How can a receiver tell whether an Ethernet frame uses the original Ethernet standard or the IEEE 802.3 standard? [Hint: Just looking for the LLC/SNAP header is not sufficient, because the receiver has no way to know whether the data is a LLC/SNAP header or the beginning of the payload. ]

5.Why does a bridge or switch network run the Distributed Spanning Tree Algorithm? You do not need to explain the algorithm itself.

6.You type into a Cisco switch and the following (partial) table is displayed: (Fa0/x means FastEthernet port x on module 0)

Vlan Mac Address Type Ports ---- ----------- -------- -----

1 0018.b974.528f DYNAMIC Fa0/16 1 0019.0617.660f DYNAMIC Fa0/13 1 0019.0617.6610 DYNAMIC Fa0/14 1 0019.0617.6611 DYNAMIC Fa0/15 1 001b.d450.970f DYNAMIC Fa0/19 1 001b.d450.9710 DYNAMIC Fa0/20 1 001b.d450.9711 DYNAMIC Fa0/21

Assuming each MAC address belongs to a separate host, sketch the LAN, showing the switch, the switch port numbers, the hosts, and the MAC addresses of the hosts.

8.Consider the class-less IP network 130.45.130.0/21

a.How many bits are in the net id? _________________

b.How many bits are in the host id? __________________

c.How many possible hosts are there? __________________

d.What is the mask in binary and dotted decimal?

__________________________ and _______________________________

e. What is the broadcast IP address for this network? ____________________________

9.Is the host 128.235.201.16 on the network 128.235.204.0/22?