A TestKing.com technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command.
In which OSI layer is the problem most likely occurring?（）
A. Physical
B. Data link
C. Network layer
D. Transport layer
E. Application layer
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A.Application
B.Presentation
C.Session
D.Transport
E.Network
F.Data-Link
A. Application
B. Presentation
C. Session
D. Transport
E. Internet
F. Data Link
G. Physical
A. The data link layer
B. The application layer
C. The access layer
D. The session layer
E. The network layer
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
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
最新試題
Which of the following statements regarding routed and routing protocols are true?（）
Which of the following if addresses can be assigned to host devices?（）
All WAN links is side the TestKing.com network use PPP with for authentication security. Which command will display the CHAP authentication process as it occurs between two routers in the network?（）
A Class C network address has been subnetted with a /27 mask.Which of the following addresses is a broadcast address for one of the resulting subnets?（）
What should the configuration register value be after successfully completing the password recover procedure and returning the router to normal operation? （）
New switches have been purchased for a network upgrade. The objective for the network design emphasizes efficient, error-free transport instead of fast transport.Which switching mode should be configured on the new switches to provide error-free transport to the network? （）
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?（）
Which of the following contribute to congestion on an Ethernet network?（）
Identify three valid host addresses in the 192.168.27.0 network with a subnet mask of 255.255.255.240. （）
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?（）