Of the following switching types, which one has the lowest latency? A.)

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CCNA Interview Questions

CCDA Interview Questions

Question

Of the following switching types, which one has the lowest
latency?

A.) Cut-through

B.) Fragment Free

C.) None

D.) Store-and-forward

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Re: Of the following switching types, which one has the lowest latency? A.) Cut-through B.) Fragment Free C.) None D.) Store-and-forward

Answer
# 1

Answer: A

Cut-Through switching copies only the destination address
which is the

first 6 bytes after the frame preamble into its buffer. The
LAN switch

then looks up the destination address in its switching table and

determines the outgoing interface. The frame is then sent to the

interface. A cut-through switch provides reduced latency
because it

begins to forward the frame as soon as it read the
destination address

and determines the outgoing interface.

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