When does STP automatically recon?¬?gure switch or bridge ports?
a. When the network topology changes
b. When the forward delay timer expires
c. When an administrator speci?¬?es a recalculation
d. When a new BPDU is not received within the forward delay
17. How does STP provide a loop-free network?
a. By placing all ports in the blocking state
b. By placing all bridges in the blocking state
c. By placing some ports in the blocking state
d. By placing some bridges in the blocking state
18. Which port is the lowest-cost path from the nonroot bridge to the root bridge?
a. Root
b. Blocking
c. Designated
d. Nondesignated
19. How does STP select the designated port on a segment?
a. Lowest-cost path to the root bridge
b. Highest-cost path to the root bridge
c. Lowest-cost path to the closest nonroot bridge
d. Highest-cost path to the closest nonroot bridge
20. Which statement is true of a port in the listening state?
a. The port is able to check for BPDUs and populate the MAC table.
b. The port is able to check for BPDUs but not yet populate its MAC table.
c. The port is able to populate its MAC table but not yet forward user frames.
d.
Pages:
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161