希賽網(wǎng)為大家整理了2017下半年網(wǎng)絡(luò)規(guī)劃設(shè)計(jì)師考試上午真題，以下為第六部分。

試題51
某企業(yè)有電信和聯(lián)通2條互聯(lián)網(wǎng)接入線路，通過部署（  ）可以實(shí)現(xiàn)內(nèi)部用戶通過電信信道訪問電信目的的IP地址，通過聯(lián)通信道訪問聯(lián)通目的的IP地址。也可以配置基于（  ）的策略路由，實(shí)現(xiàn)行政部和財(cái)務(wù)部通過電信信道訪問互聯(lián)網(wǎng)，市場(chǎng)部和研發(fā)部通過聯(lián)通信道訪問互聯(lián)網(wǎng)。
A.負(fù)載均衡設(shè)備
B.網(wǎng)閘
C.安全設(shè)計(jì)設(shè)備
D.上網(wǎng)行為管理設(shè)備
A.目標(biāo)地址
B.源地址
C.代價(jià)
D.管理距離
試題52
某企業(yè)網(wǎng)絡(luò)管理員發(fā)現(xiàn)數(shù)據(jù)備份速率突然變慢，初步檢查發(fā)現(xiàn)備份服務(wù)器和接入交換機(jī)的接口速率均顯示為百兆，而該連接兩端的接口均為千兆以太網(wǎng)接口，且接口速率采用自協(xié)商模式。排除該故障的方法中不包括（  ）。
A.檢查設(shè)備線纜
B.檢查設(shè)備配置
C.重啟設(shè)備端口
D.重啟交換機(jī)
試題53
某企業(yè)門戶網(wǎng)站（www.xxx.com）被不法分子入侵，查看訪問日志，發(fā)現(xiàn)存在大量入侵訪問記錄，如下圖所示。
www.xxx.com/news/html/?0?union <http://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_schema.tables group by a）b where’1’=’1.htm
該入侵為（  ）攻擊，應(yīng)配備（  ）設(shè)備進(jìn)行防護(hù)。
A.DDOS
B.跨站腳本
C.SQL注入
D.遠(yuǎn)程命令執(zhí)行
A.WAF（WEB安全防護(hù)）
B.IDS（入侵檢測(cè)）
C.漏洞掃描系統(tǒng)
D.負(fù)載均衡
試題54
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 （  ）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 （  ）multicast group recognize the multicast address and （  ）the packet.In this case,only a single copy of the packet is ever transmitted.This technique works because of the （  ）nature of a LAN:A transmission from any one station is received by all other stations on the LAN.
A.numerous
B.only
C.single
D.multicast
A.within
B.out of
C.beyond
D.cover
A.different
B.unique
C.special
D.corresponding
A.reject
B.accept
C.discard
D.transmit
A.multicast
B.unicast
C.broadcast
D.multiple unicast

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