2016 New Cisco 642-427 Practice Test Download 100% Pass Successfully

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Exam A
QUESTION 1
You have been presented with a trouble ticket from an end user who works at a remote location that is served by a Cisco Unified Communications Manager Express. The user reports being unable to place calls to international numbers, but all other calls work properly and other users at this location can place international calls. Which two troubleshooting techniques would be helpful in resolving this issue? (Choose Two)
A. Cisco IOS debug tools
B. Class of Restrictions baseline configuration for the user on Cisco Unified Communication Manager Express.
C. show output of the ephone and ephone -dn configurations.
D. show output of the voice translation rules in the voice gateway
E. show output for the T1 controller and voice port configuration in the voice gateway.
Correct Answer: AB Section: (none) Explanation
QUESTION 2
Which statement indicates something that can cause an inbound PSTN call to an H.323 gateway that is configured in Cisco Unified Communications Manager to fail to ring an IP Phone?
A. The gateway is not registered in Cisco Unified Communications Manager.
B. The gateway IP address that is configured in Cisco Unified Communications Manager does not match the IP address that is configured at the gateway in the h323-gataway voip bind srcaddr command.
C. The Cisco Unified Communications Manager does not have a matching route pattern to match the called number.
D. The gateway is missing the command allow-connections h323 to h323 under the voice service voip configuration.
Correct Answer: B Section: (none) Explanation
QUESTION 3
Refer to the exhibit. An IP phone that is connected through a Cisco Catalyst 3750 Series Switch is failing to register with Cisco Unified Communications Manager. When the user presses the settings button on the phone, the Operational VLAN ID shows a blank entry. What is the most likely cause for this issue?

A. The switch may not be supplying inline power.
B. The spanning tree portfast command needs to be removed.
C. The trunk encapsulation is missing. The trunk must be configured for dot1.Q.
D. Cisco Discovery Protocol is disabled on the switch
E. The Operational VLAN ID of the phone always shows as blank. The Admin VLAN ID should be 110.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 4
Refer to the exhibit. Which statement is true about the Cisco SAF Forwarder configuration on a Cisco Unified Communications Manager Express?

A. The Cisco Unified Communications Manager Express will not be able to register with the Cisco SAF Forwarder because the service-family external-client configuration is missing.
B. The Cisco Unified Communications Manager Express will be able to register with the Cisco SAF Forwarder
C. The QSCC Unified Communications Manager Express will not be able to register with the Cisco SAF Forwarder because the trunk configuration under voice service saf is missing
D. The Cisco Unified Communications Manager Express will not be able to register with the Cisco SAF Forwarder because call control services not been configured
E. The Cisco Communications Manager Express will be able to register with the Cisco SAF Forwarder, but an error message will be displayed regarding the missing trunk configuration
Correct Answer: B Section: (none) Explanation
QUESTION 5 When the command utils dbreplication status is executed on the Cisco Unified Communications Manager CLI, which step should be taken next to check the database replication status?
A. View the activelog file.
B. Run the same command on all nodes of the cluster.
C. Restart the Cisco CallManager service.
D. The command utils dbreplication runtimetstate must be run on the publisher.
E. The command utils dbreplication runtimestate must be run on the subscriber.

Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 6
Which QoS methodology combines strict priority queuing with class-based weighted fair queuing?
A. IP RTP Priority
B. Multilink
C. IP Frame Relay RTP Priority
D. RSVP
E. LLQ
Correct Answer: E Section: (none) Explanation
QUESTION 7
Refer to the exhibits. Low latency queuing has been implemented on the HO and BR1 routers to allow five
G.729 calls. Callers are still experiencing poor audio, in particular choppy and delayed audio during traffic
congestion. This problem occurs even with just one active call.
Which two actions will solve the issue?
A. Change the codec type to G 711.
B. Configure RSVP call admission control
C. Configure Link Fragmentation and Interleave on the WAN links
D. Configure RTP header compression on the WAN links
E. Increase the priority queue bandwidth to 80 Kb/s
F. Configure location settings in Cisco Unified Communications Manager to 1 20 Kb/s
Correct Answer: CD Section: (none) Explanation
Explanation/Reference:
QUESTION 8
How does LLQ ensure that voice traffic is always expedited?
A. LLQ adds a strict priority class to CBWQF. The class allows delay-sensitive data such as voice to be dequeued and sent first.
B. LLQ uses CBWFQ to prioritize voice traffic and dequeue the voice packets so that they can be handled first.
C. The strict priority queue has a higher weight than the queues in CBWFQ. This weight allows the delay sensitive data such as voice to be dequeued and sent first.
D. The LLQ strict priority queue allows delay-sensitive data such as voice to be dequeued and sent first (before packets in order queue are dequeued), giving delay sensitive data preferential treatment over other traffic.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 9
Refer to the exhibit. When calling 911, which gateway/route list is defined in the route pattern in Cisco Unified Communications Manager and used to route matched digits to the PSTN?
A. SEP002290BA361B
B. standardLocalRG
C. RouteListCdrc
D. LRG_RL
E. nodeld = 1
F. BRANCH
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 10
Which Cisco Unified Communications Manager troubleshooting tool can be used to look at detailed specific events, such as dial plan digit analysis, as they die happening?
A. traceroutes
B. RTMT real-time trace
C. Cisco Unified Communications Manager alerts
D. Cisco Unified Dialed Number Analyzer
E. RTMT performance log viewer
F. syslog output
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 11
Refer to the exhibits. MOH has been configured to run from flash at the BR1 site. The HQ phones and MOH server are placed in the Default region through the Default device pool. The BR1 phones are placed in the BR1 region through the BR1 device pool. The region configuration between Default and BR1 only permits G.729 codec.
When an IP phone user at the HQ site places a BR1 caller on hold, the BR1 caller hears tone on hold. Which of the following can cause this issue?
A. Multicast routing is not enabled on the BR1 router.
B. The command ip pim separate-dense-mode is missing from interface VLAN 120 at the SRST router in BR1.
C. The MOH server is unable to stream MOH using G.711 codec because of the regions configuration.
D. The command route 10.1.120.1 must be added to the multicast moh 239.1.1.1 port 16384 command at the SRST router in BR1.
E. The Max Hops is too small in the MOH configuration
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 12
An IP phone that is connected through a Cisco Catalyst 3750 Series Switch is failing to register with the subscriber as a backup server. When the user presses the settings button on the phone, only the Cisco Unified Communications Manager publisher shows as registered. What is the most likely cause for this issue?
A. The phone does not have the correct Cisco Unified Communications Manager group in the device configuration page.
B. The Cisco Unified Communications Manager group that is applied through the device pool is misconfigured.
C. The ip-helper address command for the subscriber is not configured on the switch port.
D. The subscriber does not have the correct device pool configured.
E. The enterprise phone configuration does not have the call control redundancy enabled.
Correct Answer: B Section: (none) Explanation
QUESTION 13
Which step in the problem-solving model is important to accurately interview end users to get all the pertinent details of the problem?
A. Implement Action Plan
B. Define the Problem
C. Consider the Possibilities
D. Create Action Plan
E. Gather Facts
F. Observe Results
G. Restart Problem-Solving Process
H. Problem Resolved
Correct Answer: E Section: (none) Explanation
Explanation/Reference:
QUESTION 14
Refer to the exhibit. The exhibit shows the output of debug isdn q931. An inbound PSTN call was received by an MGCP gateway that is registered with a Cisco Unified Communications Manager. The call failed to ring extension 3001. If the phone at extension 3001 is registered and reachable through the gateway inbound CSS, which two actions can resolve this issue? (Choose two.)

A. Change the significant digits for inbound calls to 4 in the gateway configuration in CiscoUnified Communications Manager.
B. Configure the digit strip 4 on the MGCP gateway configuration in Cisco UnifiedCommunications Manager under Incoming Called Party Settings.
C. Configure a translation pattern in Cisco Unified Communications Manager that can beaccessed by the gateway CSS to truncate the called number to four digits.
D. Configure a called-party transformation CSS on the gateway in Cisco UnifiedCommunications Manager that includes a pattern that transforms the number from ten digits to four digits.
E. Configure a voice translation profile in the MGCP Cisco IOS gateway with a voice translation rule that truncates the number from ten digits to four digits.
F. Configure the Cisco IOS command num-exp 2288223001 3001 on the gateway.
Correct Answer: AC Section: (none) Explanation
QUESTION 15
Which of these is used by the Cisco IP phone to relay to the switch the information regarding how much power is needed?
A. the Cisco Discovery Protocol
B. IEEE 802.10 protocol
C. Cisco IP phones always use a fixed power consumption hased on the resistor, which is specific to the model
D. The switch model determines how much power is consumed by the different phone models

Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 16
Refer to the exhibit. Assume a centralized Cisco Unified Communications Manager topology with the headquarters at RTP and remote located at the U.K. All route patterns are assigned a route list that contains a route group pointing to the local gateway. RTP route patterns use the RTP gateway, and U.K. route patterns use the U.K. gateway. When a U.K. user logs into an RTP phone using the Cisco Extension Mobility feature and places an
emergency call to 0000, which statement about the emergency call is true?

A. The call will match the U.K_Emergency route pattern partition and will egress at the RTP gateway.
B. The call will match the U.K_Emergency route pattern partition and will egress at the U.K. gateway.
C. The call will match the RTP_Emergency route pattern partition and will egress at the RTP gateway.
D. The call will match the RTP_Emergency route pattern partition and will egress at the U.K. gateway.
E. The call will fail.

Correct Answer: B Section: (none) Explanation
QUESTION 17
Which issue would cause an MGCP gateway to fail to register with Cisco Unified Communications Manager?
A. missing the configuration command isdn bind-13 ccm-manager under the ISDN interface
B. mismatched domain name on the MGCP gateway and Cisco Unified Communications Manager gateway configuration
C. misconfigured route group in Cisco Unified Communications Manager
D. incorrect MGCP IP address specified in the gateway configuration in Cisco Unified Communications Manager

Correct Answer: B Section: (none) Explanation
QUESTION 18
Refer to the exhibits. The HG_MRG that is shown in the exhibit is assigned to an MRGL, which is
configured at the HQ phones.
A call exists between two HQ phones that use G.711 codec. When one of the HQ users attempts to
conference a BR phone across the WAN, the conference fails. The SDI trace shows an error “No
transcoder device configured.”
Which statement indicates the correct resolution or reason for the issue?
A. The BR phone does not have access to the HO_Conf bridge
B. The BR phone does not have access to the CFB_2 bridge
C. The BR phone does not have access to a transcoder
D. The CFB_2 bridge should be removed from the HQ_MRG and assigned to an MRG that is not assigned to an MRGL
E. The CFB_2 bridge should be listed last in the HQ_MRG

Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 19
Refer to the exhibits. When a remote Cisco Unified Communications Manager learns the advertised patterns that are shown in the exhibit, which patterns would be shown in the Cisco Unified Communications Manager RTMT tool?

A. 2XXX and the ToDiD will be 0:+498950555
B. 2XXX and the ToDiD will be 0+498953121
C. +4989505552XXX and the ToDiD will be 0:
D. +498953121 2XXX and the ToDiD will be 0:
E. Both +4989505552XXX and +4989531 21 2XXX will be advertised with ToDID of 0:

Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 20
Refer to the exhibits. When the IP phone 2001 places a call to 9011 49403021 56001, the call is sent to the Cisco Unified Border Element as 40302156001 which is what the ITSP expects to receive. The ITSP support personnel claim that they never saw the call. Issuing the debug CCSIP message command on the Cisco Unified Border Element results in the message “SIP/2 0 404 Not Found”. Refer to the Cisco Unified Border Element configuration, debug voice dial and ccsip messages exhibits. Which situation can cause this issued?

A. The Cisco Unified Bolder Element is configured as an MGCP gateway also so that the call is attempted via the PSTN
B. The command allow-connections sip to h323 is missing
C. SIP error 404 means that a codec mismatch occurred Cisco Unified Communications Manager is sending the call as an early offer with G.711 codec.
D. The Cisco Unified Communications Manager is rnisconfigured. The SIP invite should be sent to the ITSP at 10.1.2.1.2. The debug ccsip message shows the SIP invite being sent to 10.12.1.2.

Correct Answer: B Section: (none) Explanation
Explanation/Reference:

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