根据下面的文字资料回答 2~3 题在双绞线布线后要进行测试,一般情况,下面(1 )不是测试的项目。光纤测试的内容不包括(2 )项目。第2题:文中(1 )处正确的答案是()。
A.近端串扰
B.拓扑结构
C.开路或短路
D.错对
- · 有4位网友选择 C,占比50%
- · 有2位网友选择 A,占比25%
- · 有1位网友选择 B,占比12.5%
- · 有1位网友选择 D,占比12.5%
A.近端串扰
B.拓扑结构
C.开路或短路
D.错对
A.两次握手机制
B.三次握手机制
C.滑动窗口机制
D.Windows窗口机制
A.处于直通状态
B.属于同一VLAN
C.属于不同VLAN
D.地址都相同
A.电路交换和信元交换
B.虚电路交换和分组交换
C.电路交换和分组交换
D.报交电路交换和分组交换
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
A.2
B.3
C.4
D.5
A.FCP
B.IP
C.802.3
D.X.25
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
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
A.控制帧
B.令牌
C.协议帧
D.信息帧
A.频谱
B.频谱搬移
C.频率编码
D.频分多址
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