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Cisco uses the protocol ISL for frame tagging in a switched VLAN fabric.
Chapter: 5
229. What do VLAN's provide?
A. Easier routing
B. Easier management
C. A method to segment LANs at Layer 2 D. A method of logically grouping resources without concern as to geographic location.
Answer: D
VLANs provide network administrators the ability to logically group network resources and users together
regardless of their geographic locations. This is done by assigning user's switch port to a specific VLAN.
Chapter: 5
230. What will stop network loops from occurring in Distance Vector networks by setting a downed link to
infinity?
A. RTMP
B. Poisoned updates C. Route poisoning
D. Poison reverse
Answer: C
The router that has the link fail sends a route poisoning setting the metric to an un-reachable level. In the
case of RIP the router sets the hop count to 16.
Chapter: 5
231. What is used with holddowns to tell neighbor routers about a change in the network?
A. Holddown updates B. Triggered link changes
C. Triggered Updates
D. Holddown changes Answer: C The use of Trigger Updates allows routers to tell neighbors about changes in the network.
Chapter: 5
232. Which two statements about frame tagging are true?