In the following four descriptions, which one is not correct? ( )
ARP resolves an IP address to a MAC address.
B. DNS resolves hostnames to IP addresses.
C. DNS resolves hostnames for hosts anywhere in the Internet.
D. ARP resolves IP addresses for nodes anywhere in the Internet.
查看答案
In the LAN, ( )protocol dynamically assign IP addresses to hosts.
A. DNS
B. ARP
C. DHCP
D. IP
In the Ethernet frame structure, the CRC field is ( )bytes.
A. 2
B. 4
C. 8
D. 32
In the Ethernet frame structure, the Data field carries the ( ).
A. IP datagram
B. segment
C. frame
D. message
In the following four descriptions, which one is not correct? ( )
A. Ethernet uses baseband transmission.
B. All of the Ethernet technologies provide connection-oriented reliable service to the network layer.
C. The Ethernet 10Base2 technology uses a thin coaxial cable for the bus.
D. The Ethernet 10BaseT technology uses a star topology.
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