單項選擇題Which of the protocols below, operates at Layer 2 of the OSI model, and is used to maintain a loop-free network?()

A.RIP
B.STP
C.IGRP
D.CDP
E.VTP


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3.單項選擇題In which of the following scenarios would the "show cdp neighbors detail"command be an appropriate troubleshooting tool?()

A. Two switches are connected via a trunk. Both switches have been assigned an IP address, subnet mask, and default gateway. A ping is successful between the two switches. However, VLAN information is not passed from one switch to the other switch.
B. A router and a switch have been assigned an IP address, a subnet mask, and a default gateway. They are directly connected, but a ping between the two devices fails.
C. A router connects to another router through a serial interface. Both routers have been assigned an IP address, subnet mask, and default gateway. The routers are running RIP and the networks directly connected to the first router do not pass to the second router. However, a ping from one router to the serial interface of the directly connected neighboring router is successful.
D. A router connects to another router via a switch. Both routers and the switch have been assigned an IP address, subnet mask, and default gateway. Neither the routers nor the switch are able to ping one of the hosts that is directly to the switch.

4.單項選擇題Which command can be used to determine the type of cable attached to the Serial 0/0 interface on a router?()

A. show interfaces serial 0/0
B. show running-config
C. show version
D. show controllers serial 0/0
E. show ip interface
F. show line serial 0/0

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Which of the following correctly describe steps in the OSI data encapsulation process?()

題型:多項選擇題

TestKing.com has allocated the IP add 199.144.27.0 is its network, to provide flexibility for the LAN design, a subnet mask of 255.255.255.240 has been chosen. Which of the following address can be assigned to LAN on the resulting subnets.()

題型:多項選擇題

A router with a serial interface will be used for an ISDN link.What other function group devices are required to complete the connection to the service provider? ()

題型:多項選擇題

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?()

題型:多項選擇題

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?()

題型:單項選擇題

What is the purpose of pressing the Ctrl+Break keys during the router password recover procedure?()

題型:單項選擇題

Which Frame Relay feature is responsible for transmitting keepalives to ensure that the PVC does not shut down because of inactivity?()

題型:單項選擇題

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

題型:多項選擇題

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

題型:單項選擇題

Which of the following describe router functions?()

題型:多項選擇題