第56題： OSPF協(xié)議是（  ）。
A.路徑矢量協(xié)議
B.內(nèi)部網(wǎng)關(guān)協(xié)議
C.距離矢量協(xié)議
D.外部網(wǎng)關(guān)協(xié)議
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第57題： 下列（  ）接口不適用于SSD磁盤。
A. SATA
B. IDE
C. PCle
D. M.2
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第58題： 三層網(wǎng)絡(luò)設(shè)計方案中，（  ）是核心層的功能。
A.不同區(qū)域的高速數(shù)據(jù)轉(zhuǎn)發(fā)
B.用戶認(rèn)證、計費管理
C.終端用戶接入網(wǎng)絡(luò)
D.實現(xiàn)網(wǎng)絡(luò)的訪問策略控制
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第60題： 以下關(guān)于網(wǎng)絡(luò)冗余設(shè)計的敘述中，錯誤的是（  ）。
A.網(wǎng)絡(luò)冗余設(shè)計避免網(wǎng)絡(luò)組件單點失效造成應(yīng)用失效
B.通常情況下主路徑與備用路徑承擔(dān)相同的網(wǎng)絡(luò)負(fù)載
C.負(fù)載分擔(dān)是通過并行鏈路提供流量分擔(dān)來提高性能
D.網(wǎng)絡(luò)中存在備用鏈路時，可以考慮加入負(fù)載分擔(dān)設(shè)計
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第61題： 網(wǎng)絡(luò)規(guī)劃與設(shè)計過程中應(yīng)遵循一些設(shè)計原則，保證網(wǎng)絡(luò)的先進性、可靠性、容錯性、安全性和性能等。以下原則中有誤的是（  ）。
A.應(yīng)用最新的技術(shù)，保證網(wǎng)絡(luò)設(shè)計技術(shù)的先進性
B.提供充足的帶寬和先進的流量控制及擁塞管理功能
C.采用基于通用標(biāo)準(zhǔn)和技術(shù)的統(tǒng)一網(wǎng)絡(luò)管理平臺
D.網(wǎng)絡(luò)設(shè)備的選擇應(yīng)考慮具有一定的可擴展空間
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第62題： A virtual (  ) network, or VPN, is an encrypted connection over the Internet from a device to a network. The encrypted connection helps ensure that sensitive data is safely (  ). It prevents (  ) people from eavesdropping on the traffic and allows the user to conduct work remotely. Traffic on the virtual network is sent securely by establishing an encrypted connection across the Internet known as a (  ).A remote access VPN securely connects a device outside the corporate office. A site-to-site VPN connects the corporate office to branch offices over the Internet. Site-to-site VPNs are used when distance makes it impractical to have direct network connections between these offices. Think of site-to-site access as (  ) to network.
（1）A. public
B. private
C. personal
D. proper
（2）A. encoded
B. encrypted
C. stored
D. transmitted
（3）A. employed
B. authorized
C. unauthorized
D. criminal
（4）A. channel
B. path
C. tunnel
D. route
（5）A. network
B. device
C. computer
D. endpoin
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