Computer Networking
You are working with three networks that have the network IDs 192.168.5.0, 192.168.6.0, and 192.168.7.0. What subnet mask can you use to combine these addresses into one?

255.255.252.0
225.255.254.0
255.255.255.252
255.255.255.240

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Computer Networking
Which three statements are true about the operation of a full-duplex Ethernet network?1. There are no collisions in full-duplex mode.2. A dedicated switch port is required for each full-duplex node.3. Ethernet hub ports are preconfigured for full-duplex mode.4. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.5. The host network card and the switch port must be capable of operating in full-duplex mode.

2 and 4
1, 2, and 5
2, 3 and 4
5 only

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Computer Networking
Which of the following summation operations is performed on the bits to check an error-detecting code?

Attenuation
Coder-decoder
Codec
Broadband and baseband refer to the different frequencies at which infrared operates then transmitting signals in certain conditions
Checksum

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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.
You should not have more than 10 switches in the same VTP domain.
You must have at least two VLANs defined in every Cisco switched network.
VTP is used to send VLAN information to switches in a configured VTP domain.

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