In Link Layer Services of Ethernet, Error Correction is:
A. Cyclic Redundancy Check
B. Internet checksum
C. Read after Write
D. NONE
查看答案
Which of the following services can not offered by a link-layer protocol? ( )
A. congestion control
B. Link Access
C. Error control
D. Framing
( ) protocol serves to coordinate the frame transmissions of the many nodes when multiple nodes share a single broadcast link.
ARP
B. MAC Multiple Access Control
C. ICMP
DNS
In the following descriptions about MAC address, which one is not correct? ( )
A. The MAC address is the address of one node’s adapter.
B. No two adapters have the same MAC address.
C. The MAC address doesn’t change no matter where the adapter goes.
D. MAC address has a hierarchical structure.
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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