第66題： （）針對TCP連接進(jìn)行攻擊。
A．拒絕服務(wù)
B．暴力攻擊
C．網(wǎng)絡(luò)偵察
D．特洛伊木馬
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第67題：

安全需求可劃分為物理安全、網(wǎng)絡(luò)安全、系統(tǒng)安全和應(yīng)用安全，下面的安全需求中屬于系統(tǒng)安全的是（1），屬于應(yīng)用安全的是（2）。
(1)A．機(jī)房安全
B．入侵檢測
C．漏洞補(bǔ)丁管理
D．?dāng)?shù)據(jù)庫安全
(2)A．機(jī)房安全
B．入侵檢測
C．漏洞補(bǔ)丁管理
D．?dāng)?shù)據(jù)庫安全

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第68題： 一個中等規(guī)模的公司，3個不同品牌的路由器都配置了RIPv1協(xié)議。ISP為公司分配的地址塊為201.113.210.0/24。公司希望通過VLSM技術(shù)把網(wǎng)絡(luò)劃分為3個子網(wǎng)，每個子網(wǎng)中有40臺主機(jī)，下面的配置方案中最優(yōu)的是（）。
A．轉(zhuǎn)換路由協(xié)議為EIGRP,3個子網(wǎng)地址分別設(shè)置201.113.210.32/27、201.113.210.64/27和201.113.210.92/27
B．轉(zhuǎn)換路由協(xié)議為RIPv2,3個子網(wǎng)地址分別設(shè)置為201.113.210.64/26、201.113 210.128/26和201.113.210.192/26
C．轉(zhuǎn)換路由協(xié)議為OSPF,3個子網(wǎng)地址分別設(shè)置為201.113.210.16/28、201.113.210.16/28和201.113.210.48/28
D．保持路由協(xié)議為RIPv1,3個子網(wǎng)地址分別設(shè)置為201.113.210.32/26、201.113.210.64/26和201.113.210/92/26
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第70題： Traditional network layer packet forwarding relies on the information provided by network layer（1）protocols,or static routing,to make an independent forwarding decision at each（2）within the network．The forwarding decision is based solely on the destination（3）IP address．All packets for the same destination follow the same path across the network if no other equal-cost（4）exist．Whenever a router has two equal-cost pathstoward a destination,the packets toward the destination might take one or both of them,resulting in some degree of load sharing．Enhanced Interior Gateway Routing Protocol(EIGRP)also supports non-equal-cost（5）sharing although the default behavior of this protocol is equal-cost．You must configure EIGRP variance for non-equal-cost load balancing．
（1）A．switching
B．signaling
C．routing
D．session
（2）A．switch
B．hop
C．host
D．customer
（3）A．connection
B．transmission
C．broadcast
D．customer
（4）A．paths
B．distance
C．broadcast
D．session
（5）A．loan
B．Load
C．content
D．constant
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