The ARP protocol can translate ( ) into ( ). ( )
A. host name, IP address
B. host name, MAC address
C. IP address, MAC address
D. broadcast address, IP address
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In the following four options, which service can not be provided by switch? ( )
A. filtering
B. self-learning
C. forwarding
D. optimal routing
The ability to determine the interfaces to which a frame should be directed, and then directing the frame to those interfaces is( ).
A. filtering
B. forwarding
C. self-learning
D. optimal routing
In the following four descriptions about parity checks, which one is correct? ( )
A. Single-bit parity can detect all errors.
B. Single-bit parity can correct one errors.
C. Two-dimensional parity not only can detect a single bit error, but also can correct that error.
D. Two-dimensional parity not only can detect any combination of two errors, but also can correct them.
MAC address is ( ) bits long.
A. 32
B. 48
C. 128
D. 64
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