300-820 Free Certification Exam Material from Actual4test with 98 Questions
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NEW QUESTION 11
When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?
- A. SDP m-line
- B. SDP b-line
- C. SDP c-line
- D. SIP record route
Answer: C
Explanation:
Explanation
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-5/Cisco-Expressway-
NEW QUESTION 12
What is one of the user-related prerequisites for Jabber Team Messaging Mode Installation?
- A. Create user accounts in Cisco Unified Communications Manager only.
- B. Create user accounts in Cisco Unified IM and Presence.
- C. Create user accounts in Cisco Unified CM and Cisco Webex Control Hub.
- D. Create user accounts in Cisco Webex Control Hub only.
Answer: C
NEW QUESTION 13
Refer to the exhibit.
Cisco Unified Communications Manager routes the call via the Webex Meetings route list and route group to the Video Mesh cluster Node#1 in the Video Mesh cluster is hosting the meeting and has reached full capacity, but other nodes in the cluster still have spare capacity.
What happens to the participant's call?
- A. The call is queued.
- B. The call fails.
- C. Another node in the cluster is used and an intra-cluster cascade between Webex and the new Video Mesh node is formed.
- D. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.
Answer: D
NEW QUESTION 14
Refer to the exhibit.
When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?
- A. 13358 is replaced by 135, and then is sent to the local zone.
- B. 13358 is replaced by 135, and then is sent to the traversal zone.
- C. 13358 is sent directly to the traversal zone.
- D. 13358 is replaced by 135 and remains in the same zone.
Answer: C
NEW QUESTION 15
What are two reasons why port 8443 is unreachable from the Internet to the Expressway-E? (Choose two.)
- A. The Unified Communications zone is down.
- B. The SRV record for _cisco-uds is misconfigured.
- C. The MRA license is missing on the Expressway-E.
- D. The firewall is blocking the port.
- E. Transform is not configured on Expressway-E.
Answer: A,D
NEW QUESTION 16
Refer to the exhibit.
Mobile Cisco Jabber cannot register with on-premises Cisco Unified Communications Manager using Mobile and Remote Access. Some logs were captured on Expressway Edge.
Which action corrects this problem?
- A. Ensure that the peer address does not match the Common Name on certificate.
- B. Ensure that the _cisco-uds SRV record has been configured.
- C. Ensure that the credential has been entered correctly.
- D. Ensure that the SIP domains are added on Expressway Core.
Answer: C
NEW QUESTION 17
Which step is required when configuring cloud and hybrid deployments for Cisco Jabber?
- A. Add the Jabber user to Expressway-E.
- B. Add the Jabber user to Expressway-C.
- C. Add Jabber Users to the Cisco Webex Administration Tool.
- D. Add the Jabber user to Cisco Unity Connection.
Answer: C
NEW QUESTION 18
A company has enabled ICE to optimize call flows and improve video quality between their Cisco Collaboration endpoints internally and externally.
For which reason would you see activity on the TURN server when a call is established between two external endpoints?
- A. ICE cannot reduce the packet loss on the link
- B. The video call is using encryption, which is not supported by ICE with CUCM 12.5
- C. The video call is using 4K resolution, which is not supported by ICE with CUCM 12.5
- D. A STUN cannot punch holes in the firewall
Answer: D
NEW QUESTION 19
Which two statements about Mobile and Remote Access certificate are true? (Choose two.)
- A. Expressway must generate certificate signing request.
- B. You must upload the root certificates in the phone trust store.
- C. Expressway Core can use private CA signed certificate.
- D. Expressway Edge must use public CA signed certificate.
- E. The Jabber client can work with public or private CA signed certificate.
Answer: C,E
NEW QUESTION 20
When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?
- A. SDP m-line
- B. SDP b-line
- C. SDP c-line
- D. SIP record route
Answer: C
NEW QUESTION 21
Which DNS record and port combination must be resolved externally for Mobile and Remote Access to be used?
- A. _cisco-uds on port 8443
- B. _collab-edge on port 8443
- C. _collab-edge on port 5061
- D. _cisco-uds-edge on port 5061
Answer: B
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X12-5/exwy_b_mra-expressw
NEW QUESTION 22
In a Mobile and Remote Access deployment, where must communications be encrypted with TLS?
- A. Cisco Expressway-C, Cisco Expressway-E, and endpoints outside the enterprise
- B. Cisco Expressway-C, Cisco Expressway-E, and Cisco Unified Communications Manager
- C. Cisco Expressway-C, Cisco Unified Communications Manager, and IM&P
- D. Cisco Expressway-E and endpoints outside the enterprise
Answer: D
NEW QUESTION 23
An organization with a domain name of example.com.
Which two SRV records are valid for a SIP and H.323 communication? (Choose two.)
- A. _collab-edge._tls.example.com
- B. _sips._tcp.example.com
- C. _h323ls._udp.example com
- D. _h323ls._tcp.example.com
- E. _sips._udp.example.com
Answer: B,C
NEW QUESTION 24
Refer to the exhibit.
Which two outbound connections should an administrator configure on the internal firewall? (Choose two.)
- A. SIP: TCP 7001
- B. HTTPS: TCP 8443
- C. XMPP: TCP 7400
- D. SIP TCP 5061
- E. Media: UDP 36012 to 59999
Answer: A,C
NEW QUESTION 25
Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?
- A. _cisco-expwy._tls.<domain>
- B. _cisco-uds._tcp.<domain>
- C. _cisco-mra._tls.<domain>
- D. _collab-edge._tls.<domain>
Answer: B
NEW QUESTION 26
When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?
- A. SDP m-line
- B. SDP b-line
- C. SIP record route
- D. SDP c-line
Answer: C
NEW QUESTION 27
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