What is the under lying cause of this problem？（）
A. A remote physical layer problem exists.
B. The host NIC is not functioning.
C. TCP/IP has not been correctly installed on the host.
D. A local physical layer problem exists.
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A.switch to switch
B.switch to hub
C.switch to router
D.hub to hub
E.router to PC
A.The transport layer divides a data stream into segments and may add reliability and flow control information.
B.The data link layer adds physical source and destination addresses and an FCS to the segment.
C.Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.
D.Packets are created when the network layer adds Layer 3 addresses and control information to a segment.
E.The presentation layer translates bits into voltages for transmission across the physical link.
A.802.1Q native VLAN frames are untagged by default.
B.802.1Q trunking ports can also be secure ports.
C.802.1Q trunks can use 10 Mb/s Ethernet interfaces.
D.802.1Q trunks require full-duplex, point-to-point connectivity.
E.802.1Q trunks should have native VLANs that are the same at both ends.
A.it is a layer 2 messaging protocol which maintains vlan configurations across network.
B.it includes an 8-bit field which specifies the priority of a frame.
C.it is used exclusively for tagging vlan frames and dose not address network reconvergence following switched network topology changes.
D.it modifies the 802.3 frame header，and thus requires that the FCS be recomputed.
E.it is a trunking protocol capable of carring untagged frames.
A.255.255.255.0
B.255.255.255.192
C.255.255.255.250
D.255.255.255.252
A.RSTP cannot operate with PVST+.
B.RSTP defines new port roles.
C.RSTP defines no new port states.
D.RSTP is a proprietary implementation of IEEE 802.1D STP.
E.RSTP is compatible with the original IEEE 802.1D STP.
A.redundant
B.spanned
C.provisioned
D.converged
A.Executing password recovery is required.
B.The virtual terminal lines are misconfigured.
C.Use Telnet to connect to RouterA and then to NewSwitch to correct the error.
D.Power cycle of NewSwitch will return it to a default configuration.
A.PPP
B.FDDI
C.Frame Relay PVC
D.NBMA
E.Frame Relay SVC
A.On router R2, configure a default static route to the 192.168.1.0 network.
B.On router R2, configure DNS to resolve the URL assigned to Web Server 2 to the 192.168.1.10 address.
C.On router R1, configure NAT to translate an address on the 209.165.100.0/24 network to 192.168.1.10.
D.On router R1, configure DHCP to assign a registered IP address on the 209.165.100.0/24 network to Web Server 2.
最新試題
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請(qǐng)參見圖示。圖中所示路由表所屬的PC 已正確配置。IP 地址192.168.1.254屬于哪一個(gè)網(wǎng)絡(luò)設(shè)備或接口？（）
請(qǐng)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？（）
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請(qǐng)參見圖示。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？（）
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？（）
PC 無法連接到任何遠(yuǎn)程網(wǎng)站，無法ping 通其默認(rèn)網(wǎng)關(guān)，也無法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？（）