Computer Networking
Which of the following are advantages 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, 5 and 6
2, 4 and 6
5 and 6
1, 3 and 4

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

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Computer Networking
Which of the following technique is used for fragment?

All of these
None of these
a technique used in best-effort delivery systems to avoid endlessly looping packets
a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
one of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size

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

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