What is the name of a network-layer packet? （ ）
A: message
B: segment
C: datagram
D: frame
A: message
B: segment
C: datagram
D: frame
举一反三
- What is the name of a link-layer packet? （ ） A: message B: segment C: datagram D: frame
- In the network layer, the transmission is ( ). A: bit stream B: message C: packet D: frame
- 物理层、数据链路层、网络层和传输层的数据传输单位分别是 A: Byte,frame,datagram,TPDU B: it,datagram,packet,TPDU C: it,frame,datagram,packet D: it,frame,datagram,segment
- 网络层数据单元称为（）。 A: packet B: frame C: segment D: it
- In the following four descriptions, which one is correct? () A: If<br/>one host’s transport layer uses TCP, then its network layer<br/>must use virtual-circuit network. B: Datagram<br/>network provides connection service C: The<br/>transport-layer connection service is implemented in the router D: The<br/>network-layer connection service is implemented in the router as well<br/>as in the end system.