题目
A.行业
B.国际
C.国内
D.企业
第1题
根据下面的文字资料回答 66~70 题
In low-speed network,it is usually adequate to wait for congestion to occur and
then react to it by telling the source of packets to slow down.In high-speed
networks,this approach oftenworks poorly,because in the(1 )between sending the
notification and notification arriving at the source,thousands of
additional(2 )may aITive.In ATM network,a major tool for
preventing(3 )is(4 )control.when a host wants a new virtual(5 ),it must
describe the traffic to be offered and the service expected.
第66题:文中(1 )处正确的答案是()。
A.interval
B.time
C.slot
D.delay
第2题
根据下面的文字资料回答 71~75 题 The Simple Network Management Protocol(SNMP)is an (1 )protocol that facilitates the exchange of management information between (2 ).It is part of the Transmission Control ProtocoL/Internet Protocol(TCP/IP)protocol suite. SNMP enables network(3 )to manage network performance,find and sole network problems,and plan for(4 ).An SNMP managed network consists of three key components:managed devices,(5 ),and networkmanagement systems.
第6题:文中(1 )处正确的答案是()。
A.Physical Layer
B.Link Layer
C.Network Layer
D.Transport Layer
第3题
根据下面的文字资料回答 63~67 题
In low-speed network,it is usually adequate to wait for congestion to occur and
then react to it by telling the source of packets to slow down.In high-speed
networks,this approach oftenworks poorly,because in the(1 )between sending the
notification and notification arriving at the source,thousands of
additional(2 )may aITive.In ATM network,a major tool for
preventing(3 )is(4 )control.when a host wants a new virtual(5 ),it must
describe the traffic to be offered and the service expected.
第63题:文中(1 )处正确的答案是()。
A.interval
B.time
C.slot
D.delay
第4题
A.频谱
B.频谱搬移
C.频率编码
D.频分多址
第5题
A.2
B.3
C.4
D.5
第6题
A.稳定性
B.可靠性
C.数据一致性
D.可维护性
第7题
A.TA
B.TN1
C.TN2
D.TE1
第8题
A.信元
B.帧
C.分组
D.报文
第9题
Spread spectrum simply means that data is sent in(1 )pieces over a number of the discrete frequencies available for use at any time in the specified range.Devices using(2 ) spread spectrum(DSSS)communicate by splitting each(3 )of data into several parts and sending them concurrently on different(4 ),DSSS uses a lot of the available(5 ),about 22 megahertz(MHz).
第71题:文中(1 )处正确的答案是()。
A.small
B.high
C.low
D.long
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