Computer Networking
Which statements are true regarding ICMP packets?1. They acknowledge receipt of a TCP segment.2. They guarantee datagram delivery.3. They can provide hosts with information about network problems.4. They are encapsulated within IP datagrams.

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

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Computer Networking
When setting up Frame Relay for point-to-point subinterfaces, which of the following must not be configured?

The Frame Relay encapsulation on the physical interface
PAP
The local DLCI on each subinterface
An IP address on the physical interface
The subinterface type as point-to-point

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Computer Networking
The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer

The network becomes more efficient
After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device
The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500
An additional token is added for every 1,000 nodes
The network becomes less efficient

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