104
Chapter 2
Layer-2 Switching
23.
If a switch determines that the destination of a frame is the same port
from which the frame was received, the switch will:
A.
Forward the frame back out the port from which it was received.
B.
Drop the frame.
C.
Flood the frame out all ports except the one on which it was
received.
D.
Flood the frame out all ports including the one on which it was
received.
24.
Bridged and switched networks commonly utilize redundant path-
ways to ensure a fault-tolerant network. If the redundancy is not prop-
erly managed, loops in the topology may cause which of the following
problems? Select all that apply.
A.
Conflicting MAC address entries in the MAC address table of
bridges or switches
B.
Unrecoverable application errors
C.
Broadcast storms
D.
None of the above
25.
Which of the following is a true statement concerning the operation of
Spanning Tree Protocol (STP)? Select all that apply.
A.
It is enabled by default on Cisco Catalyst switches.
B.
It is enabled by default on Cisco routers.
C.
The IEEE Spanning Tree Protocol and DEC Spanning Tree Protocol
are compatible and are able to exchange spanning-tree topology
information.
D.
The DEC Spanning Tree Protocol and IBM Spanning Tree Protocol
are compatible and are able to exchange spanning-tree topology
information.
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