A.IKE
B.安全套階層
C.SSH
D.PGP
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A.10
B.40
C.30
D.20
A.remote DLCI on the main interface
B.local DLCI on the main interface
C.local DLCI on the subinterface
D.remote DLCI on the subinterface
A.加密—加密—解密
B.加密—解密—加密
C.解密—加密—解密
D.加密—加密—加密
A.traceroute address
B.tracert address
C.ssh address
D.telnet address
A.one
B.three
C.two
D.zero
A.算法是受到密碼界社團(tuán)信任的
B.算法能夠充分抵抗強(qiáng)力攻擊
C.算法支持可變的和長(zhǎng)的密鑰長(zhǎng)度以及擴(kuò)展性
D.算法有沒(méi)有出口和進(jìn)口限制
A.PVST+reduces the CPU cycles for all the switches in the network
B.PVST+automatically selects the root bridge location,to provide optimiz…
C.PVST+allow the root switch location to be optimized per vlan.
D.PVST+supports Layer 3 load balancing without loops.
A.Security increases because only the network administrator may change the routing tables.
B.Configuration complexity decreases as network size increases.
C.Routing updates are automatically sent to neighbors.
D.Route summarization iscompued automatically by the router.
E.Routing traffic load is reduced when used in stub network links
F.An efficient algorithm is used to build routing tables,using automatic updates.
G. Routing tables adapt automatically to topology changes.
A.DES
B.3DES
C.AES
D.SEAL
A.access-list 50 deny 192.168.1.1 0.0.0.255
B.access-list 110 permit ip any any
C.access-list 2500 deny tcp any host 192.168.1.1 eq 22
D.access-list 101 deny tcp any host 192.168.1.1
最新試題
請(qǐng)參見(jiàn)圖示。一臺(tái)路由器(其路由表如圖所示)收到發(fā)往192.168.1.4的數(shù)據(jù)包。路由器將如何處理該數(shù)據(jù)包?()
請(qǐng)參見(jiàn)圖示。對(duì)于從主機(jī)A 向Web 服務(wù)器發(fā)出的網(wǎng)頁(yè)請(qǐng)求,正確的目的套接字?jǐn)?shù)字是什么?()
請(qǐng)參見(jiàn)圖示。當(dāng)計(jì)算機(jī)A 向計(jì)算機(jī)D 發(fā)送幀時(shí),哪些計(jì)算機(jī)會(huì)接收該幀?()
請(qǐng)參見(jiàn)圖示。已啟用路由器的NAT 功能供PC 訪問(wèn)Internet??梢詾槁酚善鹘涌赟0/0/0分配下列哪一個(gè)IP 地址?()
請(qǐng)參見(jiàn)圖示。某用戶想要查看當(dāng)前的配置。圖中所示為ipconfig/all 命令的輸出。從此輸出可以得到哪三項(xiàng)結(jié)論?()
下列哪些是私有IP 地址的地址范圍?()
何時(shí)必須使用clock rate 命令配置路由器串行接口?()
請(qǐng)參見(jiàn)圖示。電纜1和電纜2分別按照特定的物理層要求接線。哪三個(gè)網(wǎng)段使用電纜2?()
路由器使用哪一項(xiàng)信息來(lái)確定源主機(jī)和目的主機(jī)之間的路徑?()
請(qǐng)參見(jiàn)圖示。主機(jī)A 正在訪問(wèn)多臺(tái)服務(wù)器。結(jié)合使用什么端口號(hào)和地址即可唯一識(shí)別特定服務(wù)器上運(yùn)行的特定進(jìn)程?()