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Chapter 11
Troubleshooting Switched Ethernet
Answers to Review Questions
1.
A. Switches operate at Layer 2 of the OSI model. The Catalyst 5000
has a variety of interfaces and media configurations.
2.
C. Category 5 cables are required to ensure sufficient pairs of copper
for the transmit and receive signals as well as to provide the electrical
characteristics needed.
3.
B, C. The SAINT handles Ethernet protocol as well as ISL VLAN
encapsulation.
4.
A. The collision domain is controlled by the switch port. A VLAN can
exist on multiple machines.
5.
B. Because ISL is a Cisco proprietary encapsulation, it does not work
with non-Cisco switches.
6.
E. None of these encapsulations are the same, and 802.1D is not a real
frame encapsulation type.
7.
D. The correct syntax is given by the answer D.
8.
B. The main function of spanning tree is to prevent loops in a
switched network.
9.
B. In order for different VLANs to communicate, the packets must
be routed.
10.
A. The show version command displays the system's uptime.
11.
A, C. Both of these, along with CWSI, allow the user to check the
switch utilization.
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