计算机网络双语题库,计算机网络英文题库(含答案).docx
Chapter 1 Computer Networks and the Internet
1． The () is a worldwidecomputer network,that is, a network that
interconnects millionsofcomputingdevices throughoutthe world.
ppt3
public Internet
Intranet
switch net
television net
2．Which kind of media is not a guided media? ()
twisted-pair copper wire
a coaxial cable
fiber optics
digital satellite channel
3．Which kind of media is a guided media? ()
geostationary satellite
low-altitude satellite
fiber optics
wireless LAN
4．The units of data exchanged by a link-layer protocol are called ().
Frames
Segments
Datagrams
bit streams
5．Which of the following option belongs to the circuit-switched networks?
()
FDM
TDM
VC networks
both A and B
6．( )makes sure that neither side of a connection overwhelms the other side by sending too many packets too fast.
Reliable data transfer
Flow control
Congestion control
Handshaking procedure
7．( ) means that the switch must receive the entire packet before it can begin to transmit the first bit of the packet onto the outbound link.
Store-and-forward transmission
FDM
End-to-end connection
TDM
8．Datagram networks and virtual-circuit networks differ in that ().
基于分组的数据网络采用电路交换方式传输数据，并非分组数据网络则采用分组传输机制
Data link networks represent a category of packet-switched network configurations. In contrast, virtual-circuit networks constitute a distinct model characterized by circuit switching.
datagram networks use destination addresses and virtual-circuit
networks use VC. numbers to forward packets toward their
destination.
Ddatagram networks use VC. numbers and virtual-circuit networks
destination addresses are utilized to assign packets for transmission toward their destinations.
9．In the following options, which one is not a guided media? ()
twisted-pair wire
fiber optics
coaxial cable
satellite
10．Processing delay does not include the time to ().
examine the packet’s header
wait to transmit the packet onto the link
determine where to direct the packet
check bit-error in the packet
11． In the following four desc