In communication links, transmission rate means:A、BandwidthB、propagation speedC、process speedD、router delays正确答案: A 2
All communication activities in Internet are governed by:A、ProtocolsB、WebMasterC、ClientD、ChinaTelecom正确答案: A 3
The center of internet structure is:A、Tier-1 ISPsB、Local ISPsC、Root DNSD、NAP正确答案: A 4
When congest occur in network, which delay become large
A、propagation delayB、queuing delayC、transmission delayD、processing delay正确答案: B 5
The internet protocols not define: A、order of messagesB、actions takenC、formatD、price正确答案: D 6
The internet protocols not define : A、actions takenB、order of messagesC、hackerD、format正确答案: C 7
Which is not the types of protocol data unit in TCP/IP
A、frameB、datetimeC、segmentD、message正确答案: B 8
Which is not a connected end system device in the inter