江浙沪招生考试网

　　1. Which Unity troubleshooting tool would be used to diagnose problems with skinny and MWI?

　　A. trace tool

　　B. configuration tool

　　C. diagnostic tool

　　D. maestro tool

　　Answer: C

　　2. Which Unity subscribers will have access to the Unity Diagnostic Tool?

　　A. all Unity subscribers with the correct read/write permissions

　　B. all Unity subscribers with the correct class of service permissions

　　C. all Unity subscribers with the correct security permissions

　　D. all Unity subscribers

　　Answer: B

　　3. Which two tasks must be performed to restore the Cisco Unity server data if it is corrupted or lost? (Choose

　　two.)

　　A. Start Dr. Watson manually to resolve issues in Microsoft message exchange server.

　　B. Verify Microsoft IIS permissions.

　　C. Reload the Cisco Unity server application on a new server prior to restoring data files.

　　D. Create a new batch file to replace components in the Registry.

　　E. Verify that no errors in other Cisco Unity processes.

　　Answer: BD

　　4. Your company has recently installed Cisco Unity to be the voice mail platform for your Cisco CallManager IP

　　telephony system. You have received complaints from the users that the red message waiting indicator (MWI)

　　light does not come on when there are new voice mail messages in the voice mailboxes. What must be verified

　　and possibly modified to resolve this issue? (Choose two.)

　　A. Use the Port Usage tool to verify that the ports dedicated to MWI on/off are not over- utilized. Add another

　　dedicated port if the current port is over-utilized.

　　B. Verify that the MWI on/off numbers are unique within the CallManager cluster dial plan. If they are not,

　　change the directory numbers in the CallManager cluster so they are unique and configure the Cisco Unity server

　　TestInside 642-425

　　so they match the new directory numbers.

　　C. Verify that the same directory numbers are being used for MWI on/off in both the Cisco CallManager cluster

　　and Cisco Unity server. If they are different, change the Cisco Unity server to match the Cisco CallManager

　　cluster

　　D. Verify the number of ports licensed for the Cisco Unity server is equal to the number of configured ports. If the

　　number of configured ports is greater than the license number, reduce the number of configured ports to be no

　　greater than the license number.

　　E. Verify that the calls are being sent to the correct ports on the Cisco Unity server. If they are incorrect on the

　　Cisco CallManager cluster, change the values on the cluster to be correct.

　　Answer: BC

　　5. You recently added a Cisco Unity voice mail server to your Cisco CallManager IP telephony solution. Your

　　users are receiving voice mails, but the MWI light does not go off after they have listened to all of their new voice

　　mail messages. What must be verified and possibly modified to resolve this issue?

　　A. Use the Port Usage tool to verify that the ports dedicated to MWI on/off are not over-utilized. Add another

　　dedicated port if the current port is over-utilized.

　　B. Verify that the MWI "off directory number" has been configured on both the Cisco Unity server and the Cisco

　　CallManager cluster. If it has not been configured, configure it on both the Cisco Unity server and Cisco

　　CallManager cluster.

　　C. Verify the number of ports licensed for the Cisco Unity server is equal to the number of configured ports.

　　D. Verify that the calls are being sent to the correct ports on the Cisco Unity server. If the configured ports are

　　incorrect on the CallManager cluster, change the values on the cluster to be correct.

　　Answer: B

　　6. A company has migrated to a Cisco CallManager IP telephony system and now is replacing the existing voice

　　mail system with a Cisco Unity voice mail system. A small group of users has been established to test the new

　　voice mail system. During testing the users are unable to leave voice mail messages on the new Unity system. It

　　appears that the ports hang when users try to send voice mails. How would you determine the cause of the

　　problem? (Choose two.)

　　A. Verify that the Cisco CallManager has been configured with the correct number of voice mail ports; the number

　　of voice mail ports must match the Cisco Unity configuration.

　　TestInside 642-425 B. Verify in the Cisco CallManager that the hunt group is hunting to Cisco Unity ports that can accept calls.

　　C. Verify the Cisco CallManager has been configured with the correct MWI ports; the number of MWI ports must

　　match the Cisco Unity configuration.

　　D. Verify the call transfer call handlers are configured correctly.

　　E. Verify there are no TSP warnings in the Event Viewer.

　　Answer: AB

　　7. A new Cisco Unity voice mail system is being tested. The calls are being forwarded to voice mail from the

　　Automated Attendant console, but the callers are receiving the wrong greeting. What could be the problem?

　　A. The call routing rules are not working properly.

　　B. The mailbox under test is full.

　　C. The Unity ports for sending and receiving voice mails are not configured properly.

　　D. The Microsoft Exchange server has rejected the call due to a corrupted database.

　　Answer: A

　　8. Your customer has implemented an MCU to allow conferencing between VT Advantage users. The MCU

　　appears to be properly configured but users are complaining that when they conference, they get audio but no

　　video. What is the most likely cause?

　　A. The partition/CSS configuration is preventing video setup.

　　B. The MRGL configuration is selecting incorrect conference resource.

　　C. The region configuration is selecting incorrect codec.

　　D. The location configuration is preventing video setup.

　　Answer: B

　　9. You have recently installed IP Phones in a centralized model. At a remote branch using an H.323 gateway, users

　　are complaining they cannot call some internal numbers. After dialing the last digit, they get a reorder tone. What

　　is the most likely cause?

　　A. Partition/CSS configuration issue

　　B. Gateway dial-peer configuration issue

　　C. Codec mismatch

　　D. Call Admission Control

　　TestInside 642-425

　　Answer: C

　　10. Refer to the exhibit. Your users cannot complete calls to the PSTN. After working with the Telco, you have

　　determined that you are not stripping the access-code before setting up the call with the Telco. What is a possible

　　cause of this issue?

　　A. A dial-peer is modifying the called number.

　　B. The route list configuration is over-riding route pattern configuration.

　　C. A translation pattern is modifying the called number.

　　D. The external phone number mask is incorrect.

　　Answer: B

　　11. You have a centralized IP Telephony system with branch offices in eight major cities. The manager of your

　　company help desk recently published local access numbers for external customers to reduce the costs associated

　　with your company's toll-free 800 service. When customers call the new local numbers they hear a reorder tone

　　instead of your centralized IP-IVR. What is the best solution to this issue?

　　TestInside 642-425 A. Deploy transcoders at the central location.

　　B. Deploy transcoders at each remote location.

　　C. Modify Region configuration to allow G.711 across the WAN.

　　D. Deploy IP-IVRs at each remote location.

　　Answer: A

　　12. You have received a trouble ticket that an executive cannot retrieve his account information from his bank.

　　When the call is answered, the executive is prompted to enter his account code. The bank does not seem to

　　recognize the DTMF tones and disconnects the call. What is a possible solution to this problem?

　　A. Configure progress_ind setup enable 3 under the gateway VoIP dial-peer.

　　B. Configure progress_ind alert enable 8 under the gateway POTS dial-peer.

　　C. Configure voice rtp send-rcv in the gateway.

　　D. Set CallManager Service Parameter ToSendH225UserInfoMsg to True.

　　Answer: C

　　13. Your MGCP Gateway is experiencing call setup problems on your PRI to the PSTN. TAC has asked you to

　　send traces to determine the root cause. Which two trace file settings should be configured? (Choose two.)

　　A. Set Debug Trace Level to Detailed.

　　B. Select Enable XML Formatted Output for Trace Analysis.

　　C. Select Enable H245 Message Trace.

　　D. Select Enable ISDN Translation Trace.

　　Answer: AD

　　14. What task should be completed before enabling CCM trace files in a CallManager cluster?

　　A. Configure NTP on all CallManagers.

　　B. Configure XML Formatted Output for Trace Analysis.

　　C. Install the Trace Collection Tool Plugin.

　　D. Configure a share drive on the publisher to store the trace files.

　　Answer: A

　　15. You are troubleshooting an issue where a user cannot make calls to the PSTN. You are reviewing trace files

　　TestInside 642-425 and you have found where the user's IP phone initiates the call but you never see the call go out the gateway. What

　　is the next valid step in troubleshooting this issue?

　　A. Look in the SDL trace file to see if there is a signal to another CallManager node with the same tcp-handle.

　　B. Look in the SDL trace file to see if there is a signal to another CallManager node with the same time-stamp.

　　C. Look in the IP Voice Media Streaming App trace file to see if an MTP was invoked.

　　D. Look in the MGCP trace file to determine which MGCP gateway the call was sent to.

　　Answer: B

　　16. You have received a trouble ticket from an employee. The employee is reporting that he can call his manager

　　but his manager cannot call him. The employee is calling from extension 2003 at site 2. His manager is at

　　extension 2002 in site 1. You have verified that both DNs are in the Phones partition. What is the cause of the

　　issue?

　　TestInside 642-425 A. The location configuration is resulting in insufficient bandwidth for this call.

　　B. The manager's CSS does not include Phones partition.

　　C. The manager's CSS does not include Employee partition.

　　D. The region configuration is resulting in codec negotiation issue.

　　Answer: B

　　17. Referring to the exhibit, which phone rings when Bob dials 1000?

　　A. Phone A

　　B. Phone B

　　C. Phone C

　　D. Phone D

　　Answer: B

　　18. When dialing 1136, which of the following patterns will be selected?

　　A. 1[14]XX

　　TestInside 642-425

　　B. 1[1-4]XX

　　C. 11XX!

　　D. 1[^2-8]XX

　　Answer: C

　　19. What happens if CDP is not enabled on a switch port where an IP phone is connected?

　　A. The phone is unable to acquire an IP address.

　　B. The phone cannot get its VLAN ID assignments.

　　C. The phone cannot learn the address of the TFTP server.

　　D. The switch cannot include the voice VLAN in the uplink trunk.

　　E. The switch will put the port into the errDisable state until CDP is enabled.

　　Answer: B

　　20. An 802.1Q trunk is configured with mismatched native VLANs. What is the most likely symptom?

　　A. Communication over the link occurs in one direction only.

　　B. Spanning Tree Protocol is disabled for all VLANs in the trunk.

　　C. The switch port is shut down and displays a port status of errDisable.

　　D. Layer 2 CoS markings are not mapping correctly to layer 3 QoS markings.

　　Answer: C

　　21. You have recently installed a new Catalyst 3524-PWR switch in an IDF to increase the number of IP phones

　　for a department. The IP phone for an office receives power but cannot communicate with the CallManager. The

　　department uses VLAN 16 for data and VLAN 160 for voice. From the given show running-configuration

　　command there are multiple problems. How can the communication problem with the CallManager be resolved?

　　TestInside 642-425

　　A. Change the voice VLAN to 160.

　　B. Change the switchport trunk encapsulation type to ISL.

　　C. Configure the port as an uplink to another switch configured for uplinkfast.

　　D. Change the incorrect switchport priority extend none command to switchport priority extend trust to extend the

　　trust boundary to the IP phone.

　　Answer: A

　　22. Dept16SW4#show running-configuration

　　TestInside 642-425

　　You have installed a new Catalyst 3524-PWR to support a small group of IP telephony users in Department 16.

　　When the IP phones are tested they receive power, but do not communicate with the CallManager. The above

　　show interface FastEthernet 0/3 and show VLAN database. What is the problem?

　　A. The VLAN and trunk statements are missing from FastEthernet ports 0/1 and 0/2.

　　B. VLAN 160 needs to be entered into the VLAN database.

　　C. Fast EtherChannel is supported on only the last four ports in a Catalyst 3524-PWR.

　　D. VLAN 16 is an 802.1q trunk and not an ISL trunk.

　　Answer: B

　　23. What problem will occur if an IP helper address is not configured on the router VLAN sub-interface?

　　A. The phone is unable to acquire an IP address.

　　B. The phone cannot get its VLAN ID assignments.

　　C. The router cannot route between the VLAN sub-interfaces.

　　D. The router is unable to route between the phone and the CallManager.

　　Answer: A

　　TestInside 642-425 24. How does the IP helper-address command assist an IP phone with its configuration?

　　A. required because each VLAN is a separate broadcast domain

　　B. modifies the directed broadcast sent out by the IP phone to assist in locating the DNS server

　　C. assists the DHCP server in locating the subnet the IP phone resides on

　　D. modifies the IP phone DHCP broadcast to a unicast so the request can be routed to other subnets

　　Answer: D

　　25. IP Phone A can make calls to some but not all phones. Phone A cannot call Phone B. The following is the

　　extended ping output from the router interface on the CallManager subnet to the Phone B subnet.

　　What does this output indicate?

　　A. CallManager has a good IP path to Phone B.

　　TestInside 642-425 B. The IP path from CallManager to Phone B has a 20% packet loss problem.

　　C. The IP phone is turned off, but the switch port it connects to is accessible via IP.

　　D. Multiple equal cost paths exist from CallManager to Phone B, and one is currently unusable.

　　Answer: A

　　26. IP Phone A at Site 1 can only call IP phones at its own site. A call to Phone B at Site 2 does not work.

　　Following is a partial configuration of the WAN router at site 1:

　　TestInside 642-425

　　What is a likely cause of the problem?

　　A. There is no IP route to Phone B.

　　B. There is no IP route to the CallManager.

　　C. Access list 101 will not permit PC A to ping Phone B.

　　D. Access list 101 will not permit the IP phones to communicate with each other.

　　Answer: D

　　27. A gateway attempts to match following inbound dial peers:

　　If none of these dial peers can be matched, which dial peer is selected?

　　A. the first dial peer configured

　　B. the dial peer with the longest match

　　C. the default dial peer

　　D. the incoming called-number portion of the dial peer

　　Answer: C

　　TestInside 642-425 28. The default configuration of dial peer 0 will fail to set which three of the following? (Choose three.)

　　A. DID

　　B. Toolkit Command Language (TCL) applications

　　C. non-default voice-network capabilities: dtmf-relay, vad, and other commands

　　D. ANI with answer address

　　E. DNIS with incoming called number

　　Answer: ABC

　　29. Use the diagram to assist in answering this question.

　　You have received a trouble ticket for a recently installed MGCP gateway. In testing it appears that the

　　CallManager cluster cannot communicate with the gateway. The gateway address is 10.1.44.12/24 and the

　　CallManager that is going to control the gateway has an address of 10.1.44.4/24. Use the following configuration

　　snip to resolve the problem.

　　TestInside 642-425

　　What command is missing from the configuration that will allow the CallManager to control this gateway?

　　A. ccm-manager mgcp

　　B. mgcp bind control source-interface FastEthernet 0/0

　　C. ccm-manager redundant-host

　　D. ccm-manager fallback-mgcp

　　E. ccm-manager switchback

　　Answer: A

　　30. Following is a partial configuration of an access layer switch:

　　Voice bearer traffic will be set to which dscp value?

　　A. 46

　　B. 32

　　C. 28

　　D. 12

　　E. 0

　　TestInside 642-425

　　Answer: B

　　31. You have received a trouble ticket for a recently installed MGCP gateway. It appears that under testing the

　　gateway, it is not switching to the secondary call agent when the primary call agent is unreachable. Use the

　　following configuration output to resolve the problem.

　　What command needs to be added to this configuration to allow the MGCP gateway to use a different call agent if

　　the primary fails?

　　A. ccm-manager fallback-mgcp

　　B. ccm-manager switchback

　　C. ccm-manager switchover-to-backup

　　D. ccm-manager redundant-host

　　Answer: D

　　32. Three calls can be successfully made across a WAN link. When a fourth call is made, the quality of all four

　　calls degrades. What QoS mechanism can help avoid this problem?

　　A. LLQ

　　TestInside 642-425

　　B. CAC

　　C. priority queuing

　　D. classification

　　E. LFI

　　Answer: B

　　33. Following is a partial configuration of an access layer switch:

　　Voice bearer traffic will be set to which per hop behavior?

　　A. ef

　　B. cs4

　　C. af32

　　D. af12

　　E. be

　　Answer: B

　　34. What are the two most common causes of echo? (Choose two.)

　　A. acoustic feedback from speaker phones

　　B. impedance mismatch at the 2-wire to 4-wire hybrid

　　C. misconfigured tail circuits

　　D. signal reflection

　　E. IP phone software loads

　　Answer: BD

　　35. Echo is always present to some extent in all voice networks. For echo to be a problem, which three conditions

　　must exist? (Choose three.)

　　A. an analog 2-wire to 4-wire hybrid operating below a 600 ohm impedance

　　B. analog leakage between analog Tx and Rx paths

　　C. sufficient delay in echo return for echo to be perceived as annoying

　　TestInside 642-425 D. sufficient echo amplitude to be perceived as annoying

　　E. sufficient power from the talker's side to cause listener echo

　　Answer: BCD

　　36. Following is a partial configuration of an access layer switch:

　　TestInside 642-425

　　Voice bearer traffic is mapped to which queue in FastEthernet0/2?

　　A. Queue 1

　　B. Queue 2

　　C. Queue 3

　　D. Queue 4

　　Answer: B

　　37. You have received a trouble ticket that says users are experiencing echo when going out the H.323 gateway.

　　You have tested the gateway and have modified the configuration so that the ERL level is now 4 dB. You also

　　increased the echo-cancel coverage value to 32 ms. How will this impact voice quality after this change?

　　A. The increase in echo-cancel coverage will have no effect on voice quality.

　　B. This will lead to the end of sentences being chopped by the echo canceller.

　　C. This will lead to consonants being chopped by the echo canceller.

　　D. This change will take the echo canceller 2-3 seconds longer to converge at the beginning of the call.

　　Answer: D

　　38. Which three questions should be asked of end-users in the Gathering Facts phase? (Choose three.)

　　A. How often does the problem occur?

　　B. What is the problem?

　　C. When did the problem occur?

　　D. Did you make any changes just before the problem occurred?

　　Answer: ACD

　　39. During a troubleshooting session, a router's access list is eliminated as a possible problem. Which step in the

　　Cisco Problem Solving Model does this represent?

　　TestInside 642-425

　　A. implementing an action plan

　　B. defining the problem

　　C. gathering facts

　　D. considering possibilities

　　Answer: D

　　40. Which type of echo is presented in the network drawing shown?

　　A. listener echo

　　B. NPL echo

　　C. talker echo

　　D. dual tail circuit echo

　　Answer: C

　　41. Cisco CallManager 4.0 has just been deployed in two locations across a wide area link. A distributed model

　　with an intercluster trunk has been used.

　　When you call an IP phone at the remote site the phone rings, but as soon as the other person picks up the phone,

　　the call is dropped. Where should you look to diagnose the problem?

　　A. system parameters

　　B. media resource group

　　C. locations

　　D. CallManager group

　　E. CallManager CTI traces

　　Answer: B

　　42. Refer to the exhibit. You have installed a PRI circuit to an H.323 gateway running 12.3(T) Cisco IOS software.

　　The output shown is a result of which two factors? (Choose two.)

　　TestInside 642-425

　　A. layer-2 ISDN activity

　　B. layer-3 ISDN activity

　　C. the command debug isdn h323

　　D. the command debug isdn q921

　　E. the command debug isdn pri

　　Answer: AD

　　43. Refer to the exhibit. Directory Number 1001 reports they cannot use conferencing. They are set to use

　　hardware conferencing. Which factor is most likely the issue?

　　A. The Directory Number needs to belong to a Media Resource Group List other than .

　　B. The Cisco IP phone needs to belong to a Media Resource Group List other than .

　　C. The Media Resource Group List needs to be assigned to the Partition as the Directory Number.

　　D. The Media Resource Group List must be assigned a Media Resource Group.

　　Answer: B

　　44. The Event Viewer Application Log on the Cisco CallManager subscriber initially showed device

　　SEP000F223984410 unregistered with a Reason Code of 9. It is now registered back to the Cisco CallManager

　　subscriber. What was the possible cause?

　　TestInside 642-425 A. The IP phone lost its keepalive after 90 seconds.

　　B. The Catalyst switch reset.

　　C. The device name was unknown.

　　D. The Cisco CallManager initiated a reset.

　　Answer: D

　　45. Which tool lists the following options in a query:

　　A. SQL Enterprise Manager > CCM 03xx > Device Pool > Return All Rows

　　B. Route Plan > Route Plan Report

　　C. Digit Number Analyzer

　　D. Route Plan > External Route Plan Wizard

　　Answer: B

　　46. The operation of an existing network is severely degraded. Assign the appropriate severity level as defined by

　　the TAC Case Severity Definition.

　　A. S2 upgraded to S1

　　B. S4 upgraded to S1

　　C. S1 downgraded to S2

　　D. S3 downgraded to S4

　　E. S3 upgraded to S2

　　TestInside 642-425

　　Answer: E

　　47. The outbound access code from the CallManager is not being stripped. The following configurations are set:

　　Which is the most likely solution?

　　A. Set Called Party Transformations under Route / Hunt List Detail to PreDot.

　　B. Set Calling Party Transformations under Route / Hunt List Detail to .

　　C. Set Called Party Transformations under Route Pattern to NoDigits Change.

　　D. Set Calling Party Transformation under Route Pattern to .

　　Answer: A

　　48. On a Cisco CallManager implementation, calls may be established, but supplementary services are not

　　available. What is the most likely problem?

　　A. One E1 port on the WS-X6608-E1 card provides 24 calls, resources may be exhausted.

　　B. MTP software supports 16 calls, resources may be exhausted.

　　C. MTP software supports 26 calls, resources may be exhausted.

　　D. An MTP termination point is required but not present.

　　Answer: D

　　49. Which CTI device allows only a single media stream at a time?

　　A. hunt group

　　B. route point

　　C. peer

　　D. port

　　Answer: D

　　50. Which CTI device allows queuing of calls to an unlimited depth?

　　A. hunt group

　　TestInside 642-425

　　B. route point

　　C. peer

　　D. port

　　Answer: B

　　51. A Cisco CallManager installation has just switched to Active Directory. One of the CTI services no longer

　　functions. What is the most likely problem?

　　A. The CTI server is not authenticating on the PDC.

　　B. The CTI service user is not valid in Active Directory.

　　C. The CTI service is not recognized as an Active Directory service.

　　D. The CTI server is not running Active Directory.

　　Answer: B

　　52. An MGCP gateway is not registering with its Cisco CallManager. Which Cisco CallManager tool may be used

　　to show the gateway's status without knowing the server?

　　A. Performance Monitor

　　B. Event Viewer

　　C. Log Viewer

　　D. Real-Time Monitor

　　Answer: D

　　53. Phone users are complaining of delayed dial tones. What tool may be used to exhibit resource utilization on

　　the Cisco CallManager server?

　　A. Performance Monitor

　　B. Event Viewer

　　C. Log Viewer

　　D. Real-Time Monitor

　　Answer: A

　　54. On a Cisco CallManager Subscriber, a red X appears in the Jobs folder next to a replication job name. Which

　　tool will Cisco TAC use to restore proper replication?

　　TestInside 642-425

　　A. DBRepair

　　B. DBSync

　　C. DBHelper

　　D. DBPublish

　　Answer: C

　　55. Which two operations does this RTM screen display show? (Choose two.)

　　A. a phone registering

　　B. a call in process

　　C. a phone removed from the network

　　D. a call disconnecting

　　Answer: AC