ActualTests.Cisco.640-802.Exam.Q.and.A.08.15.08-DDU (1130589), страница 63
Текст из файла (страница 63)
The interface is upand the line protocol is up on interface serial 0/0 on Router1. What command canthe administrator enter on Router1 to verify the IP address of the serial interface onRouter2?A. telnet 164.18.1.2B. show arpActualtests.com - The Power of Knowing640-802C. show cdp neighbors detailD. show interfacesE. show ip routeF. trace 164.18.1.2G. None of the aboveAnswer: CExplanation:CDP is the cisco proprietary protocol developed by cisco is used to collect theinformation of locally attached or remote devices. If you unable to ping but connectedinterface's status for interface and line is up then you can use the show cdp neighbordetail to collect the Router's ID interface, assigned IP Address, platform etc.The following is sample output for the show cdp neighbors detail command.router#show cdp neighbors detail------------------------Device ID: lab-7206Entry address(es):IP address: 172.19.169.83Platform: cisco 7206VXR, Capabilities: RouterInterface: Ethernet0, Port ID (outgoing port): FastEthernet0/0/0Holdtime : 123 secVersion :Cisco Internetwork Operating System SoftwareIOS (tm) 5800 Software (C5800-P4-M), Version 12.1(2)Copyright (c) 1986-2002 by Cisco Systems, Inc.advertisement version: 2Duplex: halfQUESTION 553:Refer to the Certkiller network shown below.
A ping from 192.168.4.1 to 192.168.4.2was unsuccessful. Which three commands will provide the most usefultroubleshooting information? (Choose three)Exhibit:Actualtests.com - The Power of Knowing640-802A. show interfacesB. show protocolsC. show ip routeD. show frame-relay mapE. show frame-relay pvcF. show ip protocolsAnswer: A, D, EExplanation:When troubleshooting connections between two directly connected routers over a framerelay network, the first step would be to issue the "show interfaces" command to ensurethat the interfaces and line protocol is up for each. If they are indeed up, then the nextstep would be to troubleshoot the frame relay connection itself and looking at the statusof the PVC by using the "show frame-relay map" and "show frame-relay pvc"commands.Commonly Used Frame Relay Commands:This section describes two Cisco IOS commands that are especially useful whenconfiguring Frame Relay.show frame-relay pvcThis command shows the status of the permanent virtual circuit (PVC), packets in andout, dropped packets if there is congestion on the line via forward explicit congestionnotification (FECN) and backward explicit congestion notification (BECN), and so on.For a detailed description of the fields used with the show frame-relay pvc command,click here.show frame-relay mapUse this command to determine if frame-relay inverse-arp resolved a remote IP addressto a local DLCI.
This command is not enabled for point-to-point subinterfaces. It isuseful for multipoint interfaces and subinterfaces only.Reference:http://www.cisco.com/en/US/partner/tech/ CK7 13/ CK237/technologies_tech_note09186a008014f8a7.shtml#topic11QUESTION 554:A network administrator is having trouble with a remote router. The administratorconnects to the router via telnet and types a debug command, but no debug outputappears on the screen. What command should the administrator type to view thedebug output?A. Certkiller 1# show debugB. Certkiller 1# debug allC. Certkiller 1# terminal monitorD. Certkiller 1# no debug *Actualtests.com - The Power of Knowing640-802E. Certkiller 1# enable debugAnswer: CExplanation:To display debug command output and system error messages for the current terminaland session, use the terminal monitor command in EXEC mode.Remember that all terminal parameter-setting commands are set locally and do notremain in effect after a session is ended.
By default, debug messages can be seen whenconnected to the router via the console, but not when using telnet.QUESTION 555:In the network below, a Certkiller user is trying to send a file from a host onNetwork A to a server on Network Z. The file transfer fails. The host on Network Acan communicate with other hosts on NetworkA. Which command, issued fromrouter Certkiller 1, would be the most useful for troubleshooting this problem?A. show versionB. show flash:C.
show interfacesD. show historyE. show controllers serialF. None of the aboveAnswer: CExplanation:This problem is most likely due to a communication problem with the ftp server. Usingthe show interface command can be used to verify the IP address, speed, errors,,configuration, etc.
One of the first steps in troubleshooting any connectivity issue is toActualtests.com - The Power of Knowing640-802issue the "show interfaces" command to ensure that all of the interfaces are up and active.Incorrect Answers:A: This is used to verify the version of IOS that the router is using.B: This is used to see the contents of the flash memory.D: This command displays the past commands that were issued in the router.E: This should only be used after it has been determined that the serial interface is indeedfaulty.QUESTION 556:Exhibit:While troubleshooting an issue on router CK1 , you notice the console screen israpidly displaying line after line of output similar to what is shown in the exhibit.The help desk has called to say that users are reporting a slowdown in the network.What will solve this problem while not interrupting network operation?A. Enter the no debug all command.B.
Use the show processes command.C. Save the configuration and reboot the router.D. Press the CTRL+C keys.E. Enter the terminal monitor command.F. None of the aboveAnswer: AExplanation:The output shown in this example is a result of one or more debug commands that havebeen used to troubleshoot an issue. Using debug commands might slow down traffic onbusy networks. To see the current debug command settings, enter the show debugcommand.
To stop the debug output, enter the no debug command. To stop all debugmessages from being displayed, enter the no debug all command.QUESTION 557:Actualtests.com - The Power of Knowing640-802In order to allow the establishment of a Telnet session with the Certkiller 2 router,which set of commands shown below, must be configured on it?A.
Certkiller 2(Config)#line vty 0Certkiller 2(Config-line)#password ciscoCertkiller 2(Config-line)#loginB. Certkiller 2(Config)#line console 0Certkiller 2 (Config-line)#enable password ciscoC. Certkiller 2(config)#line vty 0Certkiller 2(Config-line)#enable secret ciscoCertkiller 2(Config-line)#loginD. Certkiller 2(Config)#line vty 0Certkiller 2(Config-line)#enable password ciscoE. Certkiller 2(config)#line console 0Certkiller 2(Config-line)#enable secret ciscoCertkiller 2(Config-line)#loginF.
Certkiller 2(Config)#line console 0Certkiller 2(Config-line)#password ciscoCertkiller 2(Config-line)#loginG. None of the aboveAnswer: AQUESTION 558:Refer to the output shown below. Why was this message received?A. The login command has not been set on CON 0.B.
The login command has not been set on the VTY ports.C. No enable password has been set.D. No VTY password has been set.E. No enable secret password has been set.F. No console password has been set.Answer: DActualtests.com - The Power of Knowing640-802Explanation:This error is generated due to no telnet being set. For security reasons, the Cisco routerwill not allow telnet access until a password has been set. You need to set the telnetpassword using the following example:Router(config)#line vty 0 4Router(config-line)#password telnetRouter(Config-line)#loginQUESTION 559:You wish to increase the security of all of the routers within the Certkiller network.What can be done to secure the virtual terminal interfaces on a router? (Choosetwo)A. Administratively shut down the interface.B.
Physically secure the interface.C. Create an access list and apply it to the virtual terminal interfaces with theaccess-group command.D. Configure a virtual terminal password and login process.E. Enter an access list and apply it to the virtual terminal interfaces using the access-classcommand.Answer: D, EExplanation:There are a total of 5 logical Virtual terminal interfaces in a Cisco router (lines 0-4) andthey are used for remote access into the device via telnet. Configuring these interfacescorrectly with a login and password information can be used for security, as each userwill be prompted for a password in order to obtain access. A second method is to use the"access-class" command.
Combined with an access list, this command can be used tospecify the hosts or networks that will be allow access to the device.Incorrect Answers:A. Virtual terminal interfaces are logical interfaces that can not be manually shut down.B. Virtual terminal lines are logical interfaces that reside within a router, so there isnothing that can be physically secured.C. This command is used with access-lists for LAN and WAN interfaces, but is not usedfor the VTY lines.QUESTION 560:On router CK1 , the Certkiller network administrator issued the "servicepassword-encryption" command.
What is the effect of this configuration command?Actualtests.com - The Power of Knowing640-802A. Only passwords configured after the command has been entered will be encrypted.B. Only the enable password will be encrypted.C. It will encrypt all current and future passwords.D. Only the enable secret password will be encrypted.E. It will encrypt the secret password and remove the enable secret password from theconfiguration.F. None of the aboveAnswer: CQUESTION 561:You want the text "Unauthorized access prohibited!" to be displayed before thelogin prompt every time someone tries to initiate a Telnet session to a Certkillerrouter, as shown in the example below:Router#telnet 192.168.15.1Trying 192.168.15.1 ...
![](https://s.studizba.com/z.php?f=/templates/si/i/noavatar.png&w=100&h=100&t=1"){kind=avatar}
