第59題： 以下措施中，不能加強(qiáng)信息系統(tǒng)身份認(rèn)證安全的是( )。
A.信息系統(tǒng)采用 https 訪(fǎng)問(wèn)
B.雙因子認(rèn)證
C.設(shè)置登錄密碼復(fù)雜度要求
D.設(shè)置登錄密碼有效期
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第60題： ( )存儲(chǔ)方式常使用NFS協(xié)議為L(zhǎng)inux操作系統(tǒng)提供文件共享服務(wù)。
A.DAS
B.NAS
C.IP-SAN
D.FC-SAN
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第61題： 在網(wǎng)絡(luò)系統(tǒng)設(shè)計(jì)時(shí)，不可能使所有設(shè)計(jì)目標(biāo)都能達(dá)到最優(yōu)，下列措施中較為合理的是( )。
A.盡量讓最低建設(shè)成本目標(biāo)達(dá)到最優(yōu)
B.盡量讓最短的故障時(shí)間目標(biāo)達(dá)到最優(yōu)
C.盡量讓最大的安全性目標(biāo)達(dá)到最優(yōu)
D.盡量讓優(yōu)先級(jí)較高的目標(biāo)達(dá)到最優(yōu)
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第63題： 下列關(guān)于項(xiàng)目收尾的說(shuō)法中錯(cuò)誤的是( )。
A.項(xiàng)目收尾應(yīng)收到客戶(hù)或買(mǎi)方的正式驗(yàn)收確認(rèn)文件
B.項(xiàng)目收尾包括管理收尾和技術(shù)收尾
C.項(xiàng)目收尾應(yīng)向客戶(hù)或買(mǎi)方交付最終產(chǎn)品、項(xiàng)目成果、竣工文檔等
D.合同種植是項(xiàng)目收尾得一種特殊情況
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第64題：

Network Addres Translation(NAT) is an Internet standard that enbles a local-area network to use one set of IP addresses for internet traffic and another set of ( ) IP addresses for external traffic. The main use of NAT is to limit the number of public IP addresses that an organization or company must use, for both economy and ( ) purposes. NAT remaps an IP address space into another by modifying network address information in the ( ) header of packets while they are in transit across a traffic routing device. It has become an essential tool in conserving global address space in the face of ( ) address exhaustion. When a packet traverses outside the local network, NAT converts the private IP address to a public IP address. If NAT runs out of public addresses，the packets will be dropped and ( )"host unreachable"packets will be sent.
(1) A. local
B. private
C. public
D. dynamic
(2) A. political
B. fairness
C. efficiency
D. security
(3) A.MAC
B. IP
C.TCP
D. UDP
(4) A. IPv4
B. IPv6
C. MAC
D. logical
(5) A. BGP
B. IGMP
C. ICMP
D. SNMP

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