Computer Networking
You want to run the new 802.1w on your switches. Which of the following would enable this protocol?

Switch# spanning-tree mode 802.1w
Switch# spanning-tree mode rapid-pvst
Switch(config)# spanning-tree mode rapid-pvst
Switch(config)# spanning-tree mode 802.1w

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Computer Networking
Which of the following technique is used for Time-To-Line (TTL)?

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
None of these
All of these
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.
a technique used in best-effort delivery system to avoid endlessly looping packets.

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Computer Networking
Demodulation is a process of

converting analog to digital signals
multiplexing various signals into one high speed line signals
converting digital to analog signals
performing data description.

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Computer Networking
Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undeleted error?

two bits or any even number of bits inverted in a block during transmission
None of these
one bit or any odd number of bits inverted in a byte during transmission
one bit or any odd number of bits inverted in a block of data during transmission
two bits or any even number of bits inverted in a byte during transmission

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