Which tool can capture network packets and display that packet data? ( )
A. Internet Explorer
B. Wireshark
C. FileZilla
D. Firefox
查看答案
Two packets A and B are sent in the order A-B and will traverse a connectionless communication network. They will arrive at the destination ().
A. in any order, after having traversed the same route
B. in the order A-B, after possibly having traversed different routes
C. in any order, after possibly having traversed different routes
D. in the order A-B, after having traversed the same route
The service of TCP is（ ）.
A. connectionless transmission
B. unreliable data transmission
C. datagram
D. reliable data transmission
The UDP segment includes （ ）.
A. checksum
B. receive window
C. sequence number
D. acknowledgement number
The application of ( ) is loss-tolerant.
A. stored audio/video
B. file transfer
C. Web documents
D. text messaging
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