Which of the following functions can’t be implemented in the NIC? ( )
A. encapsulation and decapsulation
B. error detection
C. multiple access protocol
D. routing
查看答案
( )divides time into time frames and further divides each time frame into N time slots.
A. FDM
B. TDM
CDMA
D. CSMA
Which of the following four descriptions about random access protocol is not correct? ( )
A transmission node transmits at the full rate of the channel
B. When a collision happens, each node involved in the collision retransmits at once.
C. Both slotted ALOHA and CSMA/CD are random access protocols.
D. With random access protocol, there may be empty slots.
Which of the following is wrong? ( )
ARP table is configured by a system administrator
B. ARP table is built automatically
C. ARP table is dynamic
D. ARP table maps IP addresses to MAC addresses
The ( )field permits Ethernet to multiplex network-layer protocols.
A. preamble
B. type
CRC
D. destination MAC address
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