A Ezonexam 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．PhysicalB．Data linkC．Network layerD．Transport layerE．Application layer
A Ezonexam 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
相关考题：
CDP is being used throughout the Ezonexam network. What are two reasons why the Ezonexam network administrator would use CDP? (Choose two)A. To determine the status of network services on a remote deviceB. To obtain the IP Address of a connected device in order to telnet to the deviceC. To verify the type of cable interconnecting two devicesD. To verify Layer 2 connectivity between two devices when Layer 3 failsE. To obtain VLAN information from directly connected swticehsF. To determine the status of the routing protocols between directly connected routersG. To support automatic network failover during outages
An administrator issues the show ip interface s0/0 command and the output displays that interface Serial0/0 is up, line protocol is up.What does "line protocol is up" specifically indicate about the interface?A．The cable is attached properly.B．CDP has discovered the connected device.C．Keepalives are being received on the interface.D．A carrier detect signal has been received from the connected device.E．IP is correctly configured on the interface.
When troubleshooting an EIGRP connectivity problem, you notice that two connected EIGRP routers are not becoming EIGRP neighbors. A ping between the two routers was successful.What is the next thing that should be checked?（）A. Verify that the EIGRP hello and hold timers match exactly.B. Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP peer command.C. Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP traffic command.D. Verify that EIGRP is enabled for the appropriate networks on the local and neighboring router.
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.
There is a connectivity problem between the serial 0/0 interface of router TESTKING1 and the serial 0/0 interface of TESTKING2. A leased line point to point circuit is installed between these two routers. The output from the show interface serial 0/0 command is displayed below for each of these routers:From your observations of the above exhibit, what is the underlying cause of the problem?（）A. The loopback is not set.B. The serial cable is faulty.C. The subnet mask is not configured properly.D. The IP address is not configured properly.E. The Layer 2 frame types are not compatible.F. The keepalive setting is not configured properly.
Part of the configuration files for routers testking1 and testking2 are displayed below:If you were to enter the show interface serial 0 command on router testking1,which of the following will be displayed?（）A. Serial 0 is down, line protocol is downB. Serial 0 is up, line protocol is upC. Open: IPCP, CDPCPD. LCP closedE. LCP open
You are a network technician at TestKing, Inc. You are currently troubleshooting a routing issue on the Testking1 router. You issue the show ip route command. The output from the command is displayed in the following exhibit:Which one of the following routes WILL NOT be entered into its neighboring routers routing table?（）A. R 192.168.11.0/24 [120/7] via 192.168.9.1, 00:00:03, Serial1B. C 192.168.1.0/24 is directly connected, Ethernet0C. R 192.168.8.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0D. R 192.168.5.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0E. None of the above
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. PhysicalB. Data linkC. Network layerD. Transport layerE. Application layer
In a lab, two routers are connected directly together using serial interfaces in a back-to-back configuration. No external DCE devices are being used. What additional command is needed to bring this link up?（）A.serialupB.clockC.clockrateD.dcerateE.dterate
Which line from the output of the show ip interface command indicates a layer 1 problem?() A. Serial0/1 is up, line protocol is downB. Serial0/1 is down, line protocol is downC. Serial0/1 is up, line protocol is upD. Serial0/1 is administratively down, line protocol is down
What are two reasons a network administrator would use CDP?() A. to verify the type of cable interconnecting two devicesB. to determine the status of network services on a remote deviceC. to obtain VLAN information from directly connected switchesD. to verify Layer 2 connectivity between two devices when Layer 3 failsE. to obtain the IP address of a connected device in order to telnet to the deviceF. to determine the status of the routing protocols between directly connected routers
The administrator is unable to establish connectivity between two Cisco routers. Upon reviewing the command output of both routers, what is the most likely caust of the problem?() A.Authentication needs to be changed to PAP for both routers.B.Serial IP addresses of routers are not on the same subnet.C.Username/password is incorrectly configured.D.Router names are incorrectly configured.
What are two reasons a network administrator would use CDP (Choose two.)()。 A.to verify the type of cable interconnecting two devicesB.to determine the status of network services on a remote deviceC.to obtain VLAN information from directly connected switchesD.to verify Layer 2 connectivity between two devices when Layer 3 failsE.to obtain the IP address of a connected device in order to telnet to the deviceF.to determine the status of the routing protocols between directly connected routers
You enabled CDP on two Cisco Routers which are connected to each other. The Line and Protocol statusfor the interfaces on both routers show as UP but the routers do not see each other a CDP neighbors.Which layer of the OSI model does the problem most likely exist？（）A、PhysicalB、SessionC、ApplicationD、Data-LinkE、Network
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、PhysicalB、Data linkC、Network layerD、Transport layerE、Application layer
What command verifies connectivity between two hosts by sending and receiving ICMP echo messages?（）A、pingB、tracertC、netstatD、show cdp neighbors detailE、show ip routeF、traceroute
Two Cisco routers are connected to each other and are enabled CDP. Serial line is up，protocol is also up but cdp neighbor not working. What layer of the OSI model does the problem most likely exist？
The administrator is unable to establish connectivity between two Cisco routers. Upon reviewing the command output of both routers, what is the most likely caust of the problem?（）A、Authentication needs to be changed to PAP for both routers.B、Serial IP addresses of routers are not on the same subnet.C、Username/password is incorrectly configured.D、Router names are incorrectly configured.
In a lab, two routers are connected directly together using serial interfaces in a back-to-back configuration. No external DCE devices are being used. What additional command is needed to bring this link up?（）A、serialupB、clockC、clockrateD、dcerateE、dterate
Which line from the output of the show ip interface command indicates a layer 1 problem?（）A、Serial0/1 is up, line protocol is downB、Serial0/1 is down, line protocol is downC、Serial0/1 is up, line protocol is upD、Serial0/1 is administratively down, line protocol is down
What are two reasons a network administrator would use CDP (Choose two.)（）。A、to verify the type of cable interconnecting two devicesB、to determine the status of network services on a remote deviceC、to obtain VLAN information from directly connected switchesD、to verify Layer 2 connectivity between two devices when Layer 3 failsE、to obtain the IP address of a connected device in order to telnet to the deviceF、to determine the status of the routing protocols between directly connected routers
What are two reasons a network administrator would use CDP?（）A、to verify the type of cable interconnecting two devicesB、to determine the status of network services on a remote deviceC、to obtain VLAN information from directly connected switchesD、to verify Layer 2 connectivity between two devices when Layer 3 failsE、to obtain the IP address of a connected device in order to telnet to the deviceF、to determine the status of the routing protocols between directly connected routers
单选题In which of the following scenarios would the "show cdp neighbors detail"command be an appropriate troubleshooting tool?（）ATwo 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.BA 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.CA 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.DA 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.
问答题Two Cisco routers are connected to each other and are enabled CDP. Serial line is up，protocol is also up but cdp neighbor not working. What layer of the OSI model does the problem most likely exist？
多选题What are two reasons a network administrator would use CDP? （）Ato verify the type of cable interconnecting two devicesBto determine the status of network services on a remote deviceCto obtain VLAN information from directly connected switchesDto verify Layer 2 connectivity between two devices when Layer 3 failsEto obtain the IP address of a connected device in order to telnet to the deviceFto determine the status of the routing protocols between directly connected routers
单选题In a lab, two routers are connected directly together using serial interfaces in a back-to-back configuration. No external DCE devices are being used. What additional command is needed to bring this link up?（）AserialupBclockCclockrateDdcerateEdterate
单选题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?（）APhysicalBData linkCNetwork layerDTransport layerEApplication layer