【单选题】
下图所示的两台交换机都开启了STP协议,哪个端口最终会处于Blocking状态?___
A. SWA的G0/0/2端口
B. SWA的G0/0/3端口
C. SWB的G0/0/2端口
D. SWB的G0/0/3端口
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答案
D
解析
暂无解析
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【单选题】
如下图所示的网络,当OSPF协议稳定后,Router A和Router B的邻居状态为?___
A. 2-way
B. Down
C. Full
D. Attempt
【单选题】
下面哪个OSPF版本适用于IPv6?___
A. OSPFv2
B. OSPFv3
C. OSPFv4
D. OSPFv1
【单选题】
以下关于静态路由说法错误的是?___
A. 通过网络管理员手动配置
B. 路由器之间需要交互路由信息
C. 不能自动适应网络拓扑的变化
D. 对系统性能要求低
【单选题】
以下哪个命令可以查看OSPF是否已经正确建立邻居关系?___
A. display ospf neighbor
B. display ospf brief
C. display ospf peer
D. display ospf interface
【单选题】
对于到达同一个目的网络的多条路径,路由器需要通过比较Cost值的大小进行选择,如果Cost取值相同, 则依据Preference值的大小进行选择。___
A. 对
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【单选题】
如下图所示,主机A和主机B不能通信。___
A. 对
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【单选题】
对于到达同一个目的网络的多条路径、路由器需要通过比较Preference值的大小进行选择,如果Preference 相同,则依据Cost值的大小进行选择。___
A. 对
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【单选题】
路由表由多个要素组成,下列说法错误的是?___
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【单选题】
如果DHCP客户端申请的IP地址已经被占用时,DHCP服务器会使用哪种报文作为应答?___
A. DHCP ACK
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C.
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【单选题】
DHCP REQUEST报文一定是以广播形式发送的。___
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【单选题】
DHCP客户端想要离开网络时发送哪种DHCP报文?___
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【单选题】
华为设备可以使用Telnet协议进行管理,关于该管理功能,以下哪个说法师正确的?___
A. Telnet默认使用的端口号为22,不可以修改
B. Telnet必须开启VTY接口接口,且最大为15
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【单选题】
如图所示的拓扑以及交换机互联端口上的配置,可以判断标签为VLAN10的数据帧可以在两台交换机之间正常转发。___
A. 对
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【单选题】
交换机某个端口输出信息如下,下列说法错误的是?___
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【单选题】
VLANIF接口通过数据帧的哪个信息判断进行二层转发或者三层转发?___
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【单选题】
两台路由器之间转发的数据包一定不携带VLAN TAG。___
A. 对
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【单选题】
VLAN标签中的Priority字段可以标识数据帧的优先级,此优先级的范围是?___
A. 0-15
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【单选题】
基于端口划分VLAN的特点是?___
A. 根据报文携带的IP地址给数据帧添加VLAN标签
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【单选题】
PPP帧格式中的Protocol字段为0xC223,表示该协议是?___
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【单选题】
PPPoE客户端使用哪种方式向Server发送PADI报文?___
A. 广播
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【单选题】
运用IKE协议为IPSec自动协商建立SA,可以支持在协商发起方地址动态变化情况下进行身份认证。___
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【单选题】
缺省情况下在SNMP协议中,代理进程使用哪个端口号向NMS发送告警消息?___
A. 163
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OSPFv3的邻接关系建立后的状态为?___
A. Loading
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【单选题】
54如图所示的网络,所有接口开启OSPFv3协议,则RouterA和Router B不能建立邻接关系。___
A. 对
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【单选题】
DHCPv6请求报文目的地址为?___
A. FF01::1:2
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【单选题】
缺省情况下,在以太网链路上发送OSPFv3 HELLO报文的周期为多少秒?___
A. 30
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【单选题】
SR(SegmentRouting)将网络中的目的地址前缀/节点和邻接定义为段,并且为这些段分配SID(SegmentID)。通过对Adjacency SID(邻接段)和Prefix/Node SID(目的地址前缀/节点段)进行无序排列(Segment List),就得到一条转发路径。___
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【单选题】
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A. 对
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【单选题】
Tracert诊断工具记录下每一个ICMP TTL超时消息的(),从而可以向用户提供报文到达目的地所经过的IP地址。(单选)___
A. 目的端口
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D. 源IP地址
【单选题】
VLSM可以扩大任意IP网段,包括D类地址。___
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【单选题】
66运行STP协议的交换机,端口在任何状态下都可以直接转化为Disabled状态。 ___
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缺省情况下,交换机的桥优先级取值是32768。___
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如下图所示,下列交换机的哪个端口会处于阻塞状态?___。
A. SWC的G0/0/2
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【单选题】
如下图所示,所有主机之间都可以正常通行,则SWBMAC地址和端口的对应关系正确的是?___
A. MAC-A G0/0/3 MAC-B G0/0/3 MAC-C G0/0/1
B. MAC-A G0/0/1 MAC-B G0/0/2 MAC-C G0/0/3
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D. MAC-A G0/0/1 MAC-B G0/0/1 MAC-C G0/0/3
【单选题】
运行STP协议的交换机,只有在本交换机某个端口出现故障时才会发送TCN BPDU。 ___
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【单选题】
生成树协议中端口ID总长度是多少bit?___
A. 16
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【单选题】
如图所示,关于此网络拓扑图描述正确的是()。___
A. 此网络中有6个冲突域
B. 此网络中有6个广播域
C. 此网络中有12个冲突域
D. 此网络中有2个广播域
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【单选题】
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【单选题】
The meeting between the writer's family and Tracy's parents was arranged because___
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【单选题】
The writer and her husband learned how Tracy died___
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The meeting between the two families helped to ease the Marshes'suffering because___
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When the writer asked for a divorce ,her husband___
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When the writer first met Clint ,she felt that___
A. she should have listened to her friend and met Clint earlier
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【单选题】
The writer was particularly touched by Clint because___
A. he loved her children and asked for their approval of the marriage
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The writer's marriage to Clint is important to her mainly because___
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【单选题】
What was Goodall's childhood dream ?___
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【单选题】
What did Goodall's mother think of her dream ?___
A. As a girl she should not go to the African jungle .
B. Her dream would remain a dream unless she got the right training .
C. As a girl she should stay away from violent animals .
D. She could make her dream come true if she was determined .
【单选题】
Goodall's most important discovery was that___
A. some animals use tools
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