Question 1 · 450 in bank
Select 2Which two functionalities does Cisco Expressway provide in the Cisco Collaboration architecture? (Choose two.)
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Answer: CE
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Question 2 · 450 in bank
Which configuration step is necessary for a Cisco SIP phone to synchronize its time with a specific source?
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Answer: A
Explanation
Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/10_0_1/ccmcfg/CUCM_BK_C95ABA82_00_admin-guide-100/ CUCM_BK_C95ABA82_00_admin-guide-100_chapter_0110.html
Question 3 · 450 in bank
Refer to the exhibit. Which outgoing m-line SDP is sent to Cisco UCM after matching the appropriate dial peers via Cisco Unified Border Element?
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Answer: B
Explanation
change my mind, based on Cisco: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cube/ios-xe/config/ios-xe-book/m_voi-negt-aud-code.html#reference_D708A3F6727C4E47BBE1C0B9B417BFA7 In it, this note: Codec preference in the voice class codec on the outgoing call leg is not followed when the same codecs are available in the respective incoming invite with SDP with different codec preference. Cube prioritizes and follows the incoming invite with SDP codec preference when compared to the voice class codec preference on the outgoing dial-peer leg. So should be B.
Source: Adapted from community discussion — pasangawa
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Question 4 · 450 in bank
An end user at a remote site is trying to initiate an Ad Hoc conference call to an end user at the main site. The conference bridge is configured to support G.711. The remote user's phone only supports G.729. The remote end user receives an error message on the phone: `Cannot Complete Conference Call.` What is the cause of the issue?
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Answer: D
Explanation
Media resources not assigned are part of the NULL MRG and would still be used, so not A. Not B, as the conference feature is not selectable on a device/phone level setting. Not C, as MTP can only transcode calls between G.711ulaw/alaw and. A transcoding resource is required, so D.
Source: Adapted from community discussion — sneff91
Question 5 · 450 in bank
Which transport protocol does the application layer protocol SNMP use?
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Answer: B
Explanation
Reference: https://www.geeksforgeeks.org/simple-network-management-protocol-snmp/
Source: Adapted from community discussion — Griswald
Question 6 · 450 in bank
When a remote office location is set up with limited bandwidth resources, which codec would allow the most voice calls with the limited bandwidth?
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Answer: D
Explanation
Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab10/collab10/media.html
Source: Adapted from community discussion — jarcoman99
Question 7 · 450 in bank
Refer to the exhibit. This INVITE is sent to an endpoint that only supports G.729. What must be done for this call to succeed?
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Answer: B
Explanation
Answer is B. "A transcoder takes the media stream of one codec and transcodes (converts) it from one compression type to another compression type. For example, it could take a stream from a G.711 codec and transcode (convert) it in real time to a G.729 stream. In addition to codec conversion, a transcoder resource can also provide MTP/TRP functionality to a call."
Source: Adapted from community discussion — BarryR
References
Question 8 · 450 in bank
Refer to the exhibit. Endpoint A calls endpoint B. What is the only audio codec that can be used for the call?
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Answer: B
Explanation
It that case 101 is DTMF method not audio codec. The questions asks for audio codec which will be chosen. Correct answer is B
Source: Adapted from community discussion — Bazant
Question 9 · 450 in bank
Select 2
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.)
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Answer: DE
Explanation
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.
Source: Adapted from community discussion — Griswald
Question 10 · 450 in bank
An engineer wants to manually deploy a Cisco Webex DX80 video endpoint to a remote user. Which type of provisioning is configured on the endpoint?
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Answer: D
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