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Typically,an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks.Sunch addresses are referred to as multicast addresses,and the act of sending a packet from a source to the members of a (71)group is referred to as multicasting. Multicasting done (72) the scope of a single LAN segment is straightforwarD,IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN segment.Those stations that are members of the (73)multicast group recognize the multicast address and (74)the packet.In this case,only a single copy of the packet is ever transmitteD,This technique works because of the (75)nature of a LAN:A transmission from any one station is received by all other stations on the LAN.

发布时间:2024-07-09

A.numerous

B.only

C.single

D.multicast

试卷相关题目

  • 1接上题,应配备(70)设备进行防护。

    A.WAF(WEB安全防护)

    B.IDS(入侵检测)

    C.漏洞扫描系统

    D.负载均衡

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  • 2某企业门户网站(www.xxx.com)被不法分子入侵,查看访问日志,发现存在大量入侵访问记录,如下图所示。www.xxx.com/news/html/、0’union select 1 from (select count(*),concat(floor(rand(0)*2),0x3a,(select concat(user,0x3a,password) from pwn_base_admin limit 0,1),0x3a)a from information_sc

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    B.跨站脚本

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  • 3某企业网络管理员发现数据备份速率突然变慢,初步检查发现备份服务器和接入交换机的接口速率均显示为百兆,而该连接两端的接口均为千兆以太网接口,且接口速率采用自协商模式。排除该故障的方法中不包括(68)。

    A.检查设备线缆

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  • 4接上题,也可以配置基于(67)的策略路由,实现行政部和财务部通过电信信道访问互联网,市场部和研发部通过联通信道访问互联网。

    A.目标地址

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  • 5某企业有电信和联通2条互联网接入线路,通过部署(66)可以实现内部用户通过电信信道访问电信目的的IP地址,通过联通信道访问联通目的的IP地址。也可以配置基于(67)的策略路由,实现行政部和财务部通过电信信道访问互联网,市场部和研发部通过联通信道访问互联网。

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  • 6接上题

    A.within

    B.out of

    C.beyond

    D.cover

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  • 7接上题

    A.different

    B.unique

    C.special

    D.corresponding

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  • 8接上题

    A.reject

    B.accept

    C.discard

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  • 9接上题

    A.multicast

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    C.broadcast

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