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Question 1. What can you use to verify real-time call control processing in a VoIP network? A. debug VoIP rtcp B. debug call control C. debug VoIP ccapi inout D. debug voice call control Answer: A Explanation: To enable debugging for Real-Time Transport Control Protocol (RTCP) packets, use the debug voip rtcp command in privileged EXEC mode. The debug voip ccapi inout EXEC command traces the execution path through the call control API, which serves as the interface between the call session application and the underlying network-specific software. You can use the output from this command to understand how calls are being handled by the router. This command shows how a call flows through the system. Using this debug level, you can see the call setup and teardown operations performed on both the telephony and network call legs. Reference: http://www.cisco.com/en/US/products/sw/iosswrel/ps5207/products_command_reference_chapter09186a00801aa213.html http://www.cisco.com/univercd/cc/td/doc/product/software/ios113ed/113t/113t_1/voip/debug.htm Question 2. A voice gateway is a box that ______. A. Connects two dissimilar networks. B. Transports voice and restricts data. C. Can support only a distributed call processing model. D. Cannot be connected to the traditional PSTN network. Answer: B Question 3. You have a customer that operates a group of factories. Each factory has an analog phone at each location. These phones are connected to an FXS port on the on-site router. The press operators are unable to make any phone calls from these analog phones. Use the following output to resolve the problem: 2611#s voice port 1/0/0 Foreign Exchange Station 1/0/0 Slot is 1, Sub-unit is 0, Port is 0 Type of Voice Port is FXS Operation State is DORMANT Administrative State is UP No Interface Down Failure Description is not set Noise Regeneration is enabled Non Linear Processing is enabled Non Linear Mute is disabled Non Linear Threshold is -21 dB Music On Hold Threshold is Set to 38 dBm In Gain is Set to 0 dB Out Attention is Set to 3 dB Echo Cancellation is enabled Echo Cancellation NLP mute is disabled Echo Cancellation NLP threshold is -21 dB Echo Cancel Coverage is set to default Play out-delay Mode is set to default Play out-delay Nominal is set to 60 ms Play out-delay Maximal is set to 200 ms Play out-delay Minimum mode is set to default, value 40 ms Play out-delay Fax is set to 300 ms Connection Mode is normal Connection Number is not set Initial Time Out is set to 10 s Interdigit Time Out is set to 10 s Call Disconnect Time Out is set to 60 s Ringing Time Out is set to 180 Wait Release Time Out is set to 30 s Companding Type is u-law Region Tone is set for US Analog Info Follows: Currently processing none Maintenance Mode Set to None (not in mtc mode) Number of signaling protocol errors are 0 Impedance is set to 600r Ohm Station name None, Station number None Voice card specific Info Follows: Signal Type is ground Start Ring Frequency is 25 Hz Hook Status is On Hook Ring Active Status is inactive Ring Ground Status is inactive Tip Ground Status is inactive Digit Duration Status is inactive Digit Duration Timing is set to 100 ms InterDigit Duration Timing is set to 100 ms No disconnect acknowledge Ring Cadence is defined by CPTone Selection Ring Cadance are [20 40] * 100 msec 2611# What is the cause of this problem? A. Incorrect cptone B. Incorrect dial-type C. Incorrect signal type D. Incorrect disconnect-ack Answer: C Question 4. A company has been using the following dial peer codec command: Codec g729r8 Over the weekend they reconfigured their dial peers with the following command: Codec g729ar8 bytes 10 How does this affect their voice network bandwidth and delay characteristics? A. There will be no change. B. Delay will increase on a per call basis. C. Delay will decrease on a per call basis. D. Bandwidth consumption will decrease on a per call basis. E. Bandwidth consumption will increase on a per call basis. Answer: E Question 5. Which two features render VAD ineffective? (Choose two) A. Fax B. CNG C. Call waiting D. Music on hold E. Call forwarding Answer: A, D Explanation: Over time and as an average on a volume of more than 24 calls, VAD may provide up to a 35 percent bandwidth savings. The savings are not realized on every individual voice call, or on any specific point measurement. For the purposes of network design and bandwidth engineering, VAD should not be taken into account, especially on links that carry fewer than 24 voice calls simultaneously. Various features such as music on hold and fax render VAD ineffective. When the network is engineered for the full voice call bandwidth, all savings provided by VAD are available to data applications. Reference: http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a0080094ae2.shtml Question 6. A user is trying to call another user over a VoIP network and gets a busy tone instead of a dial tone. What command should you use to troubleshoot the problem? A. show voice dsp B. show voice connection C. show voice port summary D. show dial-peer voice summary Answer: A Explanation: To show the current status of all digital signal processor (DSP) voice channels, use the show voice dsp command in privileged EXEC mode. To display configuration information about a specific voice port, use the show voice port command in EXEC mode. order to check the validity of the dial peer configuration, use the Cisco IOS command show dial-peer voice summary. Question 7. What does compressed RTP significantly reduce? A. Packet delay B. Total bandwidth C. Frame Relay overhead D. Total number of packets Answer: B Explanation: Compressed RTP (CRTP), specified in RFC 2509, was developed to decrease the size of the IP, UDP, and RTP headers. Question 8. While installing a voice gateway outside the United States, what two requirements need to be verified? (Choose two) A. PSTN standards in that country. B. Encryption capabilities legalities. C. The service provider installing the gateway. D. Supplementary service including fax and modem. Answer: A, B Question 9. A customer in Great Britain needs to install a Cisco router to support IP Telephony services with direct-connected analog phones. What FXS port parameter do you need to change to emulate the local PSTN provider? A. Signal B. Cptone C. Busy out D. Description Answer: B Question 10. Your customer is a computer components warehouse. To keep costs low, all inside sales associates are located at corporate headquarters in another state. Your customer is interested in providing a direct analog telephone connection to the inside sales teams from the pick-up counters at their warehouses. This connection will not require the customer to dial any digits. One of the warehouses is having a problem with their sales phone. Given the following output: altwhse#show voice port 1/0:1 Foreign Exchange Office Type of Voice Port is E&M Operation State is DORMANT Administrative State is UP The Last Interface Down Failure Cause is Administrative Shutdown Description is not set Noise Regeneration is enabled Non Linear Processing is enabled Music On Hold Threshold is Set to -38 dBm In Gain is Set to 0 dB Out Attenuation is Set to 0 dB Echo Cancellation is enabled Echo Cancel Coverage is set to 8 ms Connection Mode is plar Connection Number is 2000 Initial Time Out is set to 10 s Interdigit Time Out is set to 10 s Call-Disconnect Time Out is set to 60 s Ringing Time Out is set to 180 s Region Tone is set for US What is causing the calls to fail? A. Voice Port type is incorrect. B. Echo cancellation is enabled. C. Connection Number is not required. D. Interdigit Time Out is set to 10 seconds. Answer: A Question 11. Which three types of trunks does Cisco support with the connection trunk command? (Choose three) A. FXS to FXS trunks B. FXS to FXO trunks C. FXO to FXO trunks D. E&M to FXS trunks E. E&M to FXO trunks F. E&M to E&M trunks Answer: A, B, F Question 12. If no incoming dial peer matches a router or gateway, the incoming call leg _____. A. Takes an alternate path. B. Matches the default dial peer. C. Sends a busy to the originator. D. Is denied and the call does not complete. Answer: B Question 13. The following configuration is used at Site A: dial-peer voice 20 pots destination-pattern 20 port 1.0:1 dial-peer voice 41 VoIP destination-pattern 41 session target ipv4:10.2.0.20 The following configuration is used at site B: dial-peer voice 40 pots destination-pattern 41 port 1.0:1 dial-peer voice 20 VoIP destination-pattern 20 session target ipv4:10.4.1.41 To configure a permanent connection between the PBXs, what must be added to the voice port configuration at site A? A. connection trunk 20 B. connection trunk 41 C. connection tie-line 20 D. connection tie-line 41 Answer: B Explanation: You must specify the same number in the connection trunk voice port command as in the appropriate dial peer destination-pattern command in order to create a permanent trunk. Question 14. A telephony service provider sells managed IP Phone service to businesses in multi-tenant units. The provider has POPs in many cities, so all of their dial peer patterns are based on 10 digit numbers. Users dial 9 for local calls, followed by the 7 digital local number. In a Chicago POP, the following dial peer has been configured: dial-peer voice 312 pots destination-pattern 312 port 1/0:24 A user dials a local number, 9-555-0597. What command must be configured in the gateway to allow the call to complete? A. prefix 312 B. forward-digits 7 C. rule 1 9.......312....... D. num-exp 9.......312....... Answer: D
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Question 1.
What happens if all CTI ports for the configured CTI Port Group are busy when a new call arrives?
A. CallManager will forward the call to the directory number configured for forward-on busy for
this CTI Route Point in CallManager.
B. Caller will receive ringing treatment.
C. An exception is raised, but the call is accepted and processed.
D. Caller will receive network busy treatment.
E. CallManager will forward the caller to the directory number configured in IPCC Express for
overflow.
Answer: A
Explanation:
Question 2.
Which agent will be selected when the Resource Selection Criteria is set to circular routing?
A. the next available agent, based on the last agent selected and the agent order in the
Resources list
B. the agent who has been in the Available state for the longest amount of time
C. the next available agent with the highest priority, as determined by the agent order in the
Resources list
D. the agent assigned to the selected Resource Group and is thus qualified to be selected
Answer: A
Explanation:
Question 3.
Which two Customer Response Solution deployment scenarios are valid for Cisco Unified Communications? (Choose two.)
A. Contact Center Express communication with ICM via a co-resident PG
B. Contact Center Express using the Enterprise CTI-OS toolkit
C. IP IVR integrating with the Enterprise version to function as a queue point and self-service
platform
D. Contact Center Express communicating with ICM via a standalone PG on an expansion server
E. Contact Center Express using the Enterprise Outbound option
Answer: A, C
Explanation:
Question 4.
In CRS Administration, what is created on the Communications Manager when you add a Unified CM Telephony group?
A. CRS CTI Route Point
B. CTI Ports
C. CRS Call Control Group
D. Communications Manager Call Control Group
Answer: B
Explanation:
Question 5.
Which interface is used to configuration debug parameter for log files?
A. Data store control center
B. Alarm and Trace Configuration
C. System parameter
D. Control center
Answer: B
Explanation:
Question 6.
What is the main function of the CRS Editor?
A. remotely manages the LDAP Directory
B. creates CRS Engine reports
C. creates application scripts for call flows
D. manages the CRS Server
Answer: C
Explanation:
Question 7.
In Cisco Unified Contact Center Express, where is wrap-up data enabled?
A. in CSQ configuration on Application Administration
B. in workflow groups on Cisco Desktop Administrator
C. in the Cisco Supervisor Desktop
D. in resource configuration on Application Administration
Answer: B
Explanation:
Question 8.
Refer to the exhibit.
What is the purpose of the Repair button in the Cisco Unified Contact Center Express 5.0 Installation Wizard?
A. repair the Cisco Unified Communications Manager cluster associated with this Cisco CRS
system
B. remove a version of Cisco CRS that the user had attempted but failed to remove previously
C. recover a Cisco CRS system
D. reinstall the same version of Cisco CRS on top of the currently installed version
Answer: C
Explanation:
Question 9.
What is a benefit of using sub flows?
A. creates a framework for CRS Server status reporting
B. decreases latency through increased bandwidth on CRS Server
C. collects information about callers to agents
D. decreases the amount of flows
E. provides more efficient management of flows that are called by multiple other flows
Answer: E
Explanation:
Question 10.
In the CRS Application Editor, where do you start the debugger?
A. Toolbar
B. Step palette
C. Variable window
D. Design window
Answer: A
Explanation:
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