You are troubleshooting a problem with a Cisco 7920 wireless IP phone on a standalone WLAN. The phonerings but， when you answer， the call is dropped. What may have caused this problem？（）

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• You are troubleshooting a one-way call problem with a Cisco 7920 wireless IP phone on a standaloneWLAN. What may have caused this problem？（）

  A . The minimum data rate is not set to 11 Mbps. B . An address resolution protocol has been disabled. C . Publicly Secure Packet forwarding is enabled. D . The access point is set to the least congested channel.

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• While troubleshooting some connectivity issues，you issue the “show ip ospf database”in order to ex amine the link state database. Which three of the statements below are true regarding the OSPF link state database（）

  A . Each router has an identical link state database. B . External routes are imported into a separate link state database. C . Syn chronization of link state databases is maintained via floodingo f LSAs. D . Information in the link state database is used to build a routing table by calculating a shortest-path tree. E . By default,link state databases are refreshede very 10 minutes in the absence of topology changes.

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• While troubleshooting a network， you need to verify the liveness of hosts in the subnet 192.168.1.64/26. All of the hosts are able to reply to ping requests. How would you confirm the existing nodes using one single command？（）

  A . ping 192.168.1.255 B . ping with sweep option C . ping 192.168.1.127 D . ping 192.168.1.64 E . ping with broadcast optio

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• You need to troubleshoot an issue on the switched LAN. When you issue a command "show port3/1" on a switch， you observe the Giants column has a non-zero entry. What could cause this？（）

  A . IEEE 802.10 B . Misconfigured NIC C . User configuration D . IEEE 802.1Q E . None of the other alternatives apply

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• When you are troubleshooting duplex mismatches， which two errors are typically seen on the fullduplex end？（）

  A . runts B . FCS errors C . interface resets D . late collisio

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• You are troubleshooting a problem with a Cisco 7920 wireless IP phone on a standalone WLAN.The phone rings but， when you answer， the call is dropped. What may cause this problem？（）

  A . The minimum data rate is not set to 11 Mbps. B . An address resolution protocol is enabled. C . Publicly Secure Packet forwarding is enabled. D . The access point is set to the least congested channel.

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• When you are troubleshooting an ACL issue on a router,which command can help you to verify which interfaces are affected by the ACL?（）

  A . show ip access-list B . show access-list C . list ip interface D . show interface E . show ip interface

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• You are troubleshooting a problem with a Cisco 7920 wireless IP phone on a standalone WLAN.The phone rings but， when you answer， the call is dropped. What may have caused this problem？（）

  A . Publicly Secure Packet forwarding is enabled. B . The minimum data rate is not set to 11 Mbps. C . An address resolution protocol is enabled. D . The access point is set to the least congested channel.

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• You are troubleshooting a one-way call problem with a Cisco 7920 wireless IP phone on a standalone WLAN. What may cause this problem？（）

  A . The minimum data rate is not set to 11 Mbps. B . An address resolution protocol has been disabled C . Publicly Secure Packet forwarding is enabled D . The access point is set to the least congested channel.

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• You are troubleshooting a one-way call problem with a Cisco 7920 wireless IP phone on a standalone WLAN. What may have caused this problem？（）

  A . The minimum data rate is not set to 11 Mbps. B . Publicly Secure Packet forwarding is enabled. C . The access point is set to the least congested channel. D . An address resolution protocol has been disabled.

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• While troubleshooting an EIGRP routing problem you notice that one of the company routers havegenerated a large number of SIA messages. What are two possible causes for EIGRP Stuck-In-Active routes？（）

  A . Some query or reply packets are lost between the routers B . The neighboring router starts receiving route updates from this router C . A failure causes traffic on a link between two neighboring routers to flow in only one direction（unidirectional link） D . The neighboring router stops receiving ACK packets from this router

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• You are attempting to troubleshoot some problems within your local network.Which of the following are router IOS commands that can be used to troubleshoot LAN connectivity problems?（）

  A . ping B . tracert C . ipconfig D . show ip route E . winipcfg F . show interfaces G . All of the above

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• As an experienced network administrator, you are asked to troubleshoot a QoS problem. In which way might the Cisco NetFlow be helpful during the troubleshooting process?（）

  A . NetFlow can discover the protocols in use and automatically adjust QoS traffic classes to meet policy-map requirements. B . NetFlow records can be used to understand traffic profiles per class of service for data, voice, and video traffic. C . NetFlow can be configured to identify voice and video traffic flows and place them into a low-latency queue for expedited processing. D . NetFlow can report on the number of traffic matches for each class map in a configured QoS policy configuration.

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• You are troubleshooting an OSPF problem where external routes are not showing up in the OSPF database. Which two options a re valid checks that should be performed first to verify proper OSPF operation?（）

  A . Are the ASBRs trying to redistribute the external routes into a totally stubby area? B . Are the ABRs configured with stubby areas? C . Is the subnets keyword being used with the redistribution command? D . Is backbone area (area 0) contiguous? E . Is the CPU utilization of the routers high?

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• While troubleshooting some connectivity issues， you issue the "show ip ospf database" in order toexamine the link state database. Which three of the statements below are true regarding theOSPF link state database？（）

  A . Each router has an identical link state database B . External routes are imported into a separate link state database C . Synchronization of link state databases is maintained via flooding of LSAs D . Information in the link state database is used to build a routing table by calculating a shortest-path tree E . By default， link state databases are refreshed every 10 minutes in the absence of topologychange

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• Which of the following IOS commands could you use to troubleshoot a router connectivity problem on an IP network?（）

  A . show ip route B . ipconfig C . tracert D . show interfaces E . traceroute F . ping G . All of the above

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• You are troubleshooting a problem with a cisco 7920 wireless ip phone on a standalone wlan. the phone rings but， when you Answer ，the call is dropped. What may have caused this problem？（）

  A . publicly secure packet forwarding is enabled. B . the minimum data rate is not set to 11 mbps. C . an address resolution protocol is enabled. D . the access point is set to the least congested channel.

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• You are troubleshooting a one-way call problem with a cisco 7920 wireless ip phone on a standalone wlan. What may cause this problem？（）

  A . the minimum data rate is not set to 11 mbps. B . an address resolution protocol has been disabled C . publicly secure packet forwarding is enabled D . the access point is set to the least congested channel.

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• Which of the following characteristics are true assuming you are troubleshooting a networkcurrently enabled for VRRP？（Choose all that apply.）（）

  A . The network is load balancing among different members of the VRRP group B . The default hello timers are 1 second C . The interface IP address is being used as the virtual IP address D . There are several routers in the group simultaneously forwarding traffic for the group E . It is a Cisco Proprietary protocol F . The default hello timers are 3 second

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• You are troubleshooting a one-way call problem with a cisco 7920 wireless ip phone on a standalone wlan. What may have caused this problem？（）

  A . the minimum data rate is not set to 11 mbps. B . publicly secure packet forwarding is enabled. C . the access point is set to the least congested channel. D . an address resolution protocol has been disabled.

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• While troubleshooting an EIGRP routing problem you notice that one of the routers have generated a large number of SIA messages. What are two possible causes for EIGRP Stuck - In -Active routes?（）

  A . Some quer y or reply packets are lost between the routers. B . The neighboring router starts receiving route updates from this router. C . A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link). D . Th e neighboring router stops receiving ACK packets from this router.

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• When you are troubleshooting duplex mismatches， which two errors are typically seen on the full- duplexend？（）

  A . runts B . FCS errors C . interface resets D . late collisio

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• While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."

  At which OSI layer is this problem associated with？ A．The data link layer B．The application layer C．The access layer D．The session layer E．The network layer

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• You are the network administrator for You manage a WindowsServer 2003 computer named TestKing1.There are multiple scheduled tasks configure on TestKing1. One task is a scheduledbackup job. You need to temporarily disable the backup job from running so thatyou can troubleshoot a problem. You must not interfere with any other scheduledtasks.You need to disable the scheduled backup job. You want to achieve this goal byusing the minimum amount of administrative effort.What should you do？（）

  A. Pause the Task Scheduler service. B. Delete the scheduled backup job. Re-create the backup after you finish troubleshooting. C. Modify the properties of the scheduled backup job and clear the Enabled check box. D. Run the ntbackup /p command on the server.

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