49.核武器具有____、冲击波、____ ___、核电磁脉冲和放射性沾染等五种杀伤破坏因素。_答案

【填空题】

49.核武器具有____、冲击波、____ ___、核电磁脉冲和放射性沾染等五种杀伤破坏因素。

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答案

光辐射|_早期核武器

解析

暂无解析

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QUESTION 38 FEC(Forwarding Equivalence Class)转发等价类，是一组具有某些共性的数据流的集合；FEC可以根据地址进行划分，但是不能根据业务类型、QoS等要素进行划分。 ___

A. 对

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QUESTION 39 关于OSI参考模型中网络层的功能说法正确的是？ ___

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传输速度和延迟要求较高的流量。___

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B. 直连路由、OSPF、RIP、静态路由

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D. 直连路由、静态路由、RIP、OSPF

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A. Router A

B. Router B

C. Router C

D. Router D

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QUESTION 46 OSPF的Router ID必须和路由器的某个接口IP地址相同。___

A. 对

B. 错

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QUESTION 48 缺省情况下，广播网络上OSPF协议Deadtime是？___

A. 20s

B. 40s

C. 10s

D. 30s

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B. 错

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A. TFTP

B. HTTP

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A. VLANIF接口不需要学习MAC地址

B. 不同的VLANIF接口可以使用相同的IP地址

C. VLANIF接口没有MAC地址

D. VLANIF接口是三层接口

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QUESTION 52 华为交换机上创建VLAN的规则是不能创建VLAN4095，且不可以删除VLAN1。___

A. 对

B. 错

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A. 0x8821

B. 0x0021

C. 0x8021

D. 0x8863

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QUESTION 59 OSPFv3报文在IPv6报文首部中的Protacol字段取十进制的值为？___

A. 69

B. 89

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A. 48bit

B. 32bit

C. 64bit

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QUESTION 63 MPLS域中的LER全称为Label Egress Router。___

A. 对

B. 错

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20-60B。___

A. 对

B. 错

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A. Virtual Routing Platform

B. Versatile Redundancy Platform

C. Versatile Routing Protocol

D. Versatile Routing Platform

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A. 经过桥ID的比较，LSW1为根桥

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C. LSW1的两个端口都为指定端口，处于转发状态

D. LSW1的G0/0/2口为阻塞状态

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A. SWD

B. SWC

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D. SWA

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QUESTION 69 如下图所示的网络，交换机的MAC地址已标出。在SWD交换机上输入命令stp root secondary，下列哪台交换机出成为此网络的根桥。___

A. SWD

B. SWB

C. SWC

D. SWA

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QUESTION 70 公司有用户反映在使用网络传输文件时，速度非常低，管理员在网络中使用Wireshark软件抓包发现了一些重复的帧，下面关于可能的原因或解决方案描述正确的是（）。___

A. 公司网络的交换设备必须进行升级改造

B. 网络在二层存在环路

C. 网络中没有配置VLAN

D. 交换机在MAC地址表中查不到数据帧的目的MAC地址时，会泛洪该数据帧

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QUESTION 71 动态路由协议能够自动适应网络拓扑的变化。___

A. 对

B. 错

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【单选题】

QUESTION 73 路由器所有的接口属于同一个广播域。___

A. 对

B. 错

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QUESTION 74 下列配置默认路由的命令中，正确的是（）。___

A. [Huawei]ip route-static 0.0.0.0 0.0.0.0 192.168.1.1

B. [Huawei-Serial0]ip route-static 0.0.0.0 0.0.0.0 0.0.0.0

C. [Huawei]ip route-static 0.0.0.0 255.255.255.255 192.168.1.1

D. [Huawei]ip route-static 0.0.0.0 0.0.0.00.0.0.0

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【单选题】

QUESTION 77 交换机的端口在收到不携带VLAN TAG数据帧时，一定添加PVID。___

A. 对

B. 错

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QUESTION 78 下面哪项参数不能用于高级访问控制列表？___

A. 物理接口

B. 时间范围

C. 目的端口号

D. 协议号

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【单选题】

设备的流量。___

A. 对

B. 错

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QUESTION 81 路由器输出信息如下，则此接口获取到的IPv6地址为？___

A. 2000::1/64

B. 3000::2/64

C. 3000::3000/64

D. 3000::1/64

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QUESTION 83 OSPFv3使用哪个区域号标识骨干区域？___

A. 0

B. 3

C. 1

D. 2

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QUESTION 84 某路由器OSPFv3邻接关系如下，则本路由器是ABR。___

A. 对

B. 错

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QUESTION 85 IPv6地址中不包括下面哪种类型的地址？___

A. 任播地址

B. 广播地址

C. 组播地址

D. 单播地址

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QUESTION 86 如果一个网络的网络地址为10.1.1.0/30，那么它的广播地址是（）？___

A. 10.1.1.4

B. 10.1.1.2

C. 10.1.1.3

D. 10.1.1.1

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