Computer Networking
Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?1. Switch2. NIC3. Hub4. Repeater5. RJ45 transceiver

1 and 3
3 and 4
All of these
1 only
5 only

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Computer Networking
Two connected routers are configured with RIP routing. What will be the result when a router receives a routing update that contains a higher-cost path to a network already in its routing table?

The updated information will be added to the existing routing table.
The existing routing table entry will be deleted from the routing table and all routers will exchange routing updates to reach convergence.
The update will be ignored and no further action will occur.
They will all load-balance.
The updated information will replace the existing routing table entry.

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Computer Networking
What is split horizon?

It splits the traffic when you have a large bus (horizon) physical network.
It prevents regular update messages from reinstating a route that has gone down.
Information about a route should not be sent back in the direction from which the original update came.
It holds the regular updates from broadcasting to a downed link.

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Computer Networking
The Corporate router receives an IP packet with a source IP address of 192.168.214.20 and a destination address of 192.168.22.3. Looking at the output from the Corporate router, what will the router do with this packet?Corp#sh ip route[output cut]R 192.168.215.0 [120/2] via 192.168.20.2, 00:00:23, Serial0/0R 192.168.115.0 [120/1] via 192.168.20.2, 00:00:23, Serial0/0R 192.168.30.0 [120/1] via 192.168.20.2, 00:00:23, Serial0/0C 192.168.20.0 is directly connected, Serial0/0C 192.168.214.0 is directly connected, FastEthernet0/0

The router will broadcast looking for the destination.
The packet will be routed out the Fa0/0 interface.
The packet will be routed out the S0/0 interface.
They will all load-balance.
The packet will be discarded.

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