A.Filtering can occur based on Layer 3 information.
B.Broadcasts are eliminated.
C.Routers generally cost less than switches.
D.Broadcasts are not forwarded across the router.
E.Adding a router to the network decreases latency.
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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
根據(jù)下圖,該access list被配置在路由器RTB的S0/0接口上的OUT方向,哪兩個數(shù)據(jù)包會被DENY,如果被路由到該接口上的話?()
A.source ip address:192.168.15.5 destination port:21
B.source ip address:192.168.15.37 destination port:21
C.ssource ip address192.168.15.41 destination port:21
D.source ip address:192.168.15.36 destination port:23
E.source ip address:192.168.15.46 destination port:23
F.source ip address:192.168.15.49 destination port:23
A.The PC has connectivity with a local host.
B.The PC has connectivity with a Layer 3 device.
C.The PC has a default gateway correctly configured.
D.The PC has connectivity up to Layer 5 of the OSI model.
E.The PC has the TCP/IP protocol stack correctly installed.
A.Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
B.Addresses are assigned for a fixed period of time.At the end of period,a newquest for an address must be made,and another address is then assigned.
C.Addresses are leased to host.A host will usually keep the same address by periodically contacting the DHCP sever to renew the lease.
D.Addresses are permanently assigned so that the host uses the same address at all times.
A.允許unrestricted訪問到console或VTY口
B.用防火墻去限制外網(wǎng)的網(wǎng)絡(luò)設(shè)備訪問
C.因為數(shù)據(jù)被自動加密,所以總是允許使用TELNET命令訪問網(wǎng)絡(luò)設(shè)備的命令行
D.使用SSH或其他加密、認(rèn)證機(jī)制去訪問設(shè)備的配置
E.為了避免丟失密碼,所以不對密碼進(jìn)行加密(明文)
A.It creates a global address pool for all outside NAT transactions
B.It establishes a dynamic address pool for an inside static address
C.It creates dynamic source translations for all inside local PAT transactions
D.It creates a one-to-one mapping between an inside local address and an inside global address
E.It maps one inside source address to a range of outside global addresses
A.traceroute address
B.tracert address
C.ssh address
D.telnet address
A.IP
B.ICMP
C.TCP
D.UDP
A.VLAN support
B.compression
C.authentication
D.sliding windows
E.multilink support
F.quality of service
最新試題
請參見圖示。網(wǎng)絡(luò)技術(shù)人員試圖確定主機(jī)A 的正確IP 地址配置。以下哪一項是主機(jī)A 的有效配置?()
請參見圖示。一臺主機(jī)正使用NAT 連接到Internet。下列哪三項IP 地址可實現(xiàn)此連接?()
請參見圖示。對于從主機(jī)A 向Web 服務(wù)器發(fā)出的網(wǎng)頁請求,正確的目的套接字?jǐn)?shù)字是什么?()
請參見圖示。RouterB 已經(jīng)過正確配置。RouterA 的以太網(wǎng)接口Fa0/0已使用如圖所示的命令進(jìn)行配置。但是,從RouterA 的Fa0/0接口無法成功ping 通RouterB 的Fa0/0接口。應(yīng)在RouterA 上采取什么措施來解決此問題?()
要將數(shù)據(jù)包發(fā)送到遠(yuǎn)程網(wǎng)絡(luò),應(yīng)使用哪種設(shè)備?()
請參見圖示。一臺路由器(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?()
請參見圖示。網(wǎng)絡(luò)中的所有設(shè)備均使用默認(rèn)配置。此拓?fù)渲写嬖诙嗌賯€廣播域?()
OSI 哪一層可提供有序的數(shù)據(jù)重構(gòu)服務(wù)?()
請參見圖示。主機(jī)X 和主機(jī)Y 與本地網(wǎng)絡(luò)的通信受到限制。此問題的原因是什么?()
請參見圖示。已啟用路由器的NAT 功能供PC 訪問Internet。可以為路由器接口S0/0/0分配下列哪一個IP 地址?()