Computer Networking
How many digits of the Network User Address are known as the DNIC (Data Network Identification Code)?

first five
first four
None of these
first three
first seven

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Computer Networking
You get a call from a network administrator who tells you that he typed the following into his router:Router (config) #router ospf 1Router (config-router) #network 10.0.0.0 255.0.0.0 area 0He tells you he still can't see any routes in the routing table. What configuration error did the administrator make?

The OSPF Process ID is incorrect.
The AS configuration is wrong.
The OSPF area is wrong.
The wildcard mask is incorrect.

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Computer Networking
"BAUD" rate means

The rate at which the signal changes.
None of these
The number of bits transmitted per unit time.
The number of bytes transmitted per unit time.

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Computer Networking
Which of the following is true regarding VLANs?

All VLANs are configured at the fastest switch and, by default, propagate this information to all other switches.
VTP is used to send VLAN information to switches in a configured VTP domain.
You must have at least two VLANs defined in every Cisco switched network.
You should not have more than 10 switches in the same VTP domain.

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Computer Networking
If a switch receives a frame and the source MAC address is not in the MAC address table but the destination address is, what will the switch do with the frame?

Add the destination to the MAC address table and then forward the frame
Add the source address and port to the MAC address table and forward the frame out the destination port
Discard it and send an error message back to the originating host
Flood the network with the frame

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