單項(xiàng)選擇題Which layer of the OSI reference model is responsible for ensuring reliable end-to-end delivery of data?()

A.Application
B.Presentation
C.Session
D.Transport
E.Network
F.Data-Link


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1.單項(xiàng)選擇題You download a file from an FTP site on the Internet. What is the highest layer in the OSI model used in this FTP operation?()

A. Application
B. Presentation
C. Session
D. Transport
E. Internet
F. Data Link
G. Physical

3.單項(xiàng)選擇題You are logged into a router and with to view the layer 3 information about your neighboring Cisco routers. What IOS command gives layer 3 information for of the directly connected router interfaces?()

A. show ip links
B. show cdp neighbor
C. show cdp neighbor detail
D. show ip clients
E. show ip route
F. None of the above

4.單項(xiàng)選擇題In the context of configuring dial-on-demand routing using ISDN, what is the purpose of the dialer-list command?()

A. to identify valid numbers for incoming calls
B. to define the type of ISDN switch at the central office
C. to specify the list of outgoing phone numbers used by the router
D. to associate a dial configuration with a physical interface
E. to define interesting traffic that will enable the link

5.單項(xiàng)選擇題A network administrator needs to configure a router for a Frame Relay connection to a non-Cisco router. Which of the following commands will prepare the WAN interface for this connection?()

A. Router(config-if)# encapsulation frame-relay q933a
B. Router(config-if)# encapsulation frame-relay ansi
C. Router(config-if)# encapsulation frame-relay ietf
D. Router(config-if)# encapsulation frame-relay isl
E. None of the above

最新試題

The following access list was applied outbound on he E0 interface connected to the 192.168.1.8/29 LAN:access-list 123 deny tcp 192.168.1.8 0.0.0.7 eq 20 anyaccess-list 123 deny tcp 192.168.1.9 0.0.0.7 eq 21 anyWhat effect will this access list have?()

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What is a global command?()

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A network host is configured as follows: Host IP address: 192.168.16.183 Subnet mask: 255.255.255.224 Default gateway: 192.168.16.190 Which of the following statements describe the network to which this host is attached?()

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Which of the following contribute to congestion on an Ethernet network?()

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Identify three valid host addresses in the 192.168.27.0 network with a subnet mask of 255.255.255.240. ()

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Five minutes after issuing the show running-config command, a technician enters the command again and notices that several access list statements have been altered. Because of this, the technician believes that the router is being configured by an unknown person through Telnet. Before changing the router passwords, the technician would like to discover if anyone is connected to the router by Telnet and stop them from making further changes.Which commands will accomplish these options?()

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What is the purpose of typing o/r 0x2142 during a password recover procedure on a 2500 series router?()

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Which of the following host addresses are member of networks that can be routed across the public Internet? ()

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The network 172.12.0.0 needs to be divided into subnets where each subnet has the capacity of 458 IP addresses.What would be the correct subnet mask to accomplish this division keeping the number of subnets at the maximum? ()

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Which command is required for connectivity in a Frame Relay network if Inverse ARP is not operational? ()

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