Computer Networking
Which of the following are disadvantages of using NAT?1. Translation introduces switching path delays.2. Conserves legally registered addresses.3. Causes loss of end-to-end IP traceability.4. Increases flexibility when connecting to the Internet.5. Certain applications will not function with NAT enabled.6. Reduces address overlap occurrence.

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

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Computer Networking
The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide?

A physical address that is randomly assigned each time the computer is started
An alias for the computer name
The logical domain address for the workstation
A physical address that is assigned by the manufacturer
A logical address that identifies the workstation

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