Computer Science :: Computer Networking
- What is route poisoning?
- Which of the following is true regarding RIPv2?
- A network administrator views the output from the show ip route command. A network that is advertised by both RIP and IGRP appears in the routing table flagged as an IGRP route. Why is the RIP route to this network not used in the routing table?
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What does RIPv2 use to prevent routing loops?
1. CIDR
2. Split horizon
3. Authentication
4. Classless masking
5. Holddown timers -
Which two of the following are true regarding the distance-vector and link-state routing protocols?
1. Link state sends its complete routing table out all active interfaces on periodic time intervals.
2. Distance vector sends its complete routing table out all active interfaces on periodic time intervals.
3. Link state sends updates containing the state of its own links to all routers in the internetwork.
4. Distance vector sends updates containing the state of its own links to all routers in the internetwork. -
IGRP uses which of the following as default parameters for finding the best path to a remote network?
1. Hop count
2. MTU
3. Cumulative interface delay
4. STP
5. Path bandwidth value -
Network 206.143.5.0 was assigned to the Acme Company to connect to its ISP. The administrator of Acme would like to configure one router with the commands to access the Internet. Which commands could be configured on the Gateway router to allow Internet access to the entire network?
1. Gateway (config) # ip route 0.0.0.0 0.0.0.0 206.143.5.2
2. Gateway (config) # router rip
3. Gateway (config-router) # network 206.143.5.0
4. Gateway (config-router) # network 206.143.5.0 default
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A.
It sends back the protocol received from a router as a poison pill, which stops the regular updates. |
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B.
It is information received from a router that can't be sent back to the originating router. |
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C.
It prevents regular update messages from reinstating a route that has just come up. |
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D.
It describes when a router sets the metric for a downed link to infinity. |
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