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Question 1:
Refer to the exhibit.
When a UC Administrator is troubleshooting DTMF negotiated by this SIP INVITE, which two messages should be examined next to further troubleshoot the issue? (Choose two.)
A. REGISTER
B. UPDATE
C. PRACK
D. NOTIFY
E. SUBSCRIBE
Correct Answer: DE
The DTMF Events through SIP Signaling feature allows telephone event notifications to be sent through SIP NOTIFY messages, using the SIP SUBSCRIBE/NOTIFY method as defined in the Internet Engineering Task Force (IETF) draft, SIP-Specific Event Notification.
Question 2:
An engineer deploys a Cisco Expressway edge server for a customer who wants to utilize all feature on the server. Which feature does the engineer configure on the Expressway edge?
A. VTC bridge
B. H.323 endpoint registration
C. SIP gateway for PSTN providers
D. MRA (Mobile and Remote Access)
Correct Answer: D
Question 3:
A network administrator with ID392116981 has determined that a WAN link between two Cisco UCM clusters supports only 1 Mbps of bandwidth for voice traffic How many calls does this link support if G711 as the audio codec is used?
A. 15
B. 16
C. 13
D. 12
Correct Answer: D
Question 4:
Which statement describes the outcome when the trust boundary is defined at the Cisco IP phone?
A. Packets or Ethernet frames are remarked at the access layer switch.
B. Packets or Ethernet frames are not remarked by the IP phone.
C. Packets or Ethernet frames are not remarked at the layer switch.
D. Packets or Ethernet frames are remarked at the distribution layer switch.
Correct Answer: C
Reference: https://networklessons.com/quality-of-service/how-to-configure-qos-trust-boundary-on-cisco-switches
Question 5:
An engineer must extend the corporate phone system to mobile users connecting through the internet with their own devices. One requirement is to keep that as simple as possible for end users. Which infrastructure element achieves these goals?
A. Cisco Express Mobility
B. Cisco Expressway-C and Expressway-E
C. Cisco Unified Border Element D. Cisco Unified Instant Messaging and Presence
Correct Answer: B
Question 6:
Which protocol does prime collaboration Assurance use to poll the health status of different systems in the collaboration environment?
A. SIP
B. SMTP
C. SCCP
D. SNMP
Correct Answer: D
Question 7:
What are two Cisco UCM location bandwidths that are deducted when G.729 and G.711 codecs are used? (Choose two.)
A. If a call uses G.729, Cisco UCM subtracts 16k
B. If a call uses G.711, Cisco UCM subtracts 80k
C. If a call uses G.729, Cisco UCM subtracts 24k
D. If a call uses G.711, Cisco UCM subtracts 64k
E. If a call uses G.729, Cisco UCM subtracts 40k
Correct Answer: BC
After the call is established, the Cisco Unified Communications Manager will subtract bandwidth from the locations, depending on the codec that is used in that call. If the call is using G.711, Cisco Unified Communications Manager subtracts
80k. If the call is using G.723, Cisco Unified Communications Manager subtracts 24k. If the call is using G.729, Cisco Unified Communications Manager subtracts 24k.
Reference:
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/trouble/11_0_1/CUCM_BK_T1F7243A_00_troubleshooting-guide-cucm-1101/ device_issues.html
Question 8:
Which characteristic of distributed class-based weighted fair queueing addresses jitter prevention?
A. It provides additional granularity by allowing a user to create classes.
B. It uses a priority queue for voice traffic to avoid jitter.
C. It minimizes jitter by implementing a priority queue for voice traffic.
D. It provides additional granularity by allowing a user to define custom classes.
Correct Answer: C
Question 9:
Endpoint A is attempting to call endpoint B. Endpoint A only supports G.711ulaw with a packetization rate of 20 ms, and endpoint B supports packetization rate of 30 ms for G.711ulaw. Which two media resources are allocated to normalize packetization rates through transrating? (Choose two.)
A. Hardware MTP on Cisco IOS Software
B. Software MTP on Cisco Unified Communication Manager
C. Software MTP on Cisco IOS Software
D. Software transcoder on Cisco unified Communications manager
E. Hardware transcoder on Cisco IOS Software
Correct Answer: AB
While a transcoder could work, MTP is sufficient and the better answer. CUCM and IOS have MTP resources, but IOS can only handle transrating when using DSPs (which would be configured as a hardware MTP).
Question 10:
When configuring Cisco Unified Communications Manager, which configuration enables phones to automatically register to a Cisco Unified Communications publisher when the connection to the subscriber is lost?
A. Cisco Unified CM Group
B. Device Pool
C. SRST
D. Route Group
Correct Answer: A
SRST is filed under device pool settings : ” SRST Reference: This is an optional field. Survivable Remote Site Telephony is a redundancy feature available on Cisco IOS routers that allows Cisco Unified IP phones registered to the Cisco Unified Communications Manager from remote office locations to register to their local router during WAN network failure events. The SRST reference determines where those phones should register during these situations”
Question 11:
When a phone is registered over Mobile and Remote Access, where does it register?
A. Cisco Unified Presence Server
B. Expressway-E
C. Cisco Unified Communications Manager
D. Expressway-C
Correct Answer: C
Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/12_0_1/systemConfig/cucm_b_system-configuration-guide-1201/cucm_b_system-configuration-guide-1201_chapter_01011010.html
Question 12:
Which two protocols should be configured for the cisco unity connection and cisco UCM integration?
A. SIP
B. H.323
C. MGCP
D. RTP
E. SCCP
Correct Answer: AE
Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/11x/design/guide/b_11xcucdg/b_11xcucdg_chapter_00.html#ID-2342-00000133
Question 13:
What happens to voice packets from a Cisco 8845 IP phone in the QoS trust boundary?
A. The voice packets are not trusted, and the access layer switch reclassifies the packets.
B. The voice packets are classified by the phone, and the classification is accepted.
C. The phone and access layer switch negotiate the classification of packets.
D. Cisco UCM determines how the voice packets are classified.
Correct Answer: B
Reference: https://www.ccexpert.us/qos-implementing/qos-trust-boundary-in-the-lan-classify-and-mark-where.html
Question 14:
Which type of message must an administrator configure in the SIP Trunk Security Profile for a Message Waiting Indicator light to work with a SIP integration between Cisco UCM and Cisco Unity Connection?
A. Unsolicited NOTIFY
B. SIP Register
C. 200 OK
D. TCP port 5060
Correct Answer: A
Reference: https://www.uccollabing.com/troubleshooting-mwi-sip-cisco-unity-connection/
Question 15:
Calls are being delivered to the end user in the globalized format. Where does an engineer configure the calling number into a localized format?
A. route pattern
B. service parameters
C. IP phone
D. gateway
Correct Answer: C