單項(xiàng)選擇題DNS servers provide what service?()

A.they run a spell check on host names to ensure accurate routing
B.they map individual hosts to their specific IP address
C.they convert domain names into IP address
D.Given an IP address,they determine the name of the host that is…


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1.多項(xiàng)選擇題在無(wú)線網(wǎng)絡(luò)中,網(wǎng)絡(luò)管理員需要考慮()安全問題

A.無(wú)線網(wǎng)絡(luò)使用WEP或WPA/TKIP是非常安全的,不容易受到黑客攻擊
B.無(wú)線網(wǎng)絡(luò)使用WPA2/AES應(yīng)該有至少6個(gè)字符的密碼短語(yǔ)
C.如果IPSec VPN是可用的,那么在任何公共無(wú)線LAN中部署它
D.如果無(wú)線接入不是必須的,禁用無(wú)線設(shè)備或無(wú)線NIC

2.多項(xiàng)選擇題Cisco IP電話解決方案的部署模式有()

A.單站部署
B.集中與遠(yuǎn)程分支呼叫處理
C.分布式呼叫處理部署
D.通過IP WAN 的組群

3.單項(xiàng)選擇題There are no boot system commands in a router configuration in NVRAM.What is the fallback sequencethat router will use to find an ios during reload?()

A.Flash,TFTP server,ROM
B.Flash,NVRAM,ROM
C.ROM,NVRAM,TFTP server
D.NVRAM,TFTP server,ROM
E.TFTP server,F(xiàn)lash,NVRAM

4.多項(xiàng)選擇題What are three features of the IPV6 protocol?()

A.complicated header
B.plug-and-play
C.no broadcasts
D.checksums
E.optional IPsec
F.autoconfiguration

5.多項(xiàng)選擇題集成架構(gòu)的無(wú)線安全方法解決方案有()

A.預(yù)先的威脅和入侵檢測(cè)能力能檢測(cè)無(wú)線攻擊并進(jìn)行防御
B.全面保護(hù)機(jī)密數(shù)據(jù)和通信安全
C.單一用戶標(biāo)識(shí)和策略簡(jiǎn)化了用戶管理和非授權(quán)訪問的保護(hù)
D.和有線安全系統(tǒng)的合作確保了無(wú)線安全功能和防護(hù)的全面性

6.單項(xiàng)選擇題

Refer to the graphic.Computer 1 is consoles into switch A.Telnet connections and pings run from thecommand prompt on switch A fail.Which of the following could cause this problem?()

A.switch A dose not have a cdp entry for switch
B.or router JAXB.switch A dose not have an IP address
C.port 1 on switch A should be an access port rather than a trunk port
D.switch A is not directly connected to router JAX
E.switch A does not have a default gateway assigned

7.多項(xiàng)選擇題Which two states are the port states when RSTP has converged?()

A.blocking
B.learning
C.disabled
D.forwarding
E.listening

8.多項(xiàng)選擇題

What can be determined from the line of show ip route output shown in the exhibit?()

A.The next routing update can be expected in 35 seconds.
B.The IP address 10.10.10.6 is configured on S0/1.
C.The IP address 10.10.10.8 is configured on S0/1.
D.This route is using the default administrative distance.
E.The 10.10.10.8 network is two hops away from this router.

9.單項(xiàng)選擇題Which of these represents an IPv6 link-local address?()

A.FE08::280e:611:a:f14f:3d69
B.FE81::280f:512b:e14f:3d69
C.FE80::380e:611a:e14f:3d69
D.FEFE:0345:5f1b::e14d:3d69

10.多項(xiàng)選擇題Which two statements about static NAT translations are true?()

A.They are always present in the NAT table.
B.They allow connection to be initiated from the outside.
C.They can be configured with access lists, to allow two or more connections to be initiated from the outside.
D.They require no inside or outside interface markings because addresses are statically defined.


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OSI 模型的哪兩項(xiàng)功能在第2層實(shí)現(xiàn)?()

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何時(shí)必須使用clock rate 命令配置路由器串行接口?()

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PC 無(wú)法連接到任何遠(yuǎn)程網(wǎng)站,無(wú)法ping 通其默認(rèn)網(wǎng)關(guān),也無(wú)法ping 通本地網(wǎng)段中工作正常的打印機(jī)。以下哪項(xiàng)操作可以確認(rèn)此PC 上的TCP/IP 協(xié)議棧是否工作正常?()

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