If two communicating entities are in different hosts connected by a network，there is a risk that PDUs will not arrive in the order in which they were sent，because they may traverse(71)paths through the network.If each PDUs is given a unique number，and numbers are assigned(72)，then it is a logically simple task for the receiving entity to reorder(73)PDUs on the basis of sequence number.A problem with this scheme is that，with a(74)sequence number field，sequence number will repeat.Evidently，the maximum sequence number must be(75)than the maximum number of PDUs that could be outstanding at any time.

A.same

B.different

C.single

D.Unique

A.randomly

B.equally

C.uniformly

D.Sequentially

A.received

B.sent

C.transmitting

D.Forwarding

A.various

B.diverse

C.finite

D.infinite

A.smaller

B.greater

C.less

D.More

點擊注冊會員>>>即可獲取網絡工程師免費在線真題、觀看免費公開課！

真題自測：軟考各科目歷年真題及答案解析

更多資訊可關注希賽網軟考頻道，問題咨詢請撥打客服電話400-111-9811。