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What Are the Main Features of the Exam?
Cisco 300-820 is a 90-minute exam that sets your career to a particular area of specialization, and that is Cisco collaboration. The topics covered here kick off with the fundamental concepts, then go through the expressway configurations and MRA solution. The last key section is about WebEx technologies. To gain a profound grasp of these domains, you need the support of various study materials, from books to training courses and more.
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Cisco 300-820 Exam Syllabus Topics:
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NEW QUESTION 20
With QoS enabled, which two statements about the Cisco Webex Video Mesh Node signaling and media traffic are true? (Choose two.)
- A. From VMN to CUCM SIP endpoints, the source UDP ports from 52500 to 62999 is used for audio traffic.
- B. From Webex cloud to VMN, the source UDP port 9000 is used for audio traffic.
- C. From VMN to Webex cloud, the destination UDP port 9000 is used for video traffic.
- D. From VMN to video endpoints, the destination UDP port 5004 is used for audio traffic.
- E. From VMN to Webex Teams clients, the source UDP port 5004 is used for video traffic.
Answer: A,E
NEW QUESTION 21
When configuring a Cisco Expressway solution and need to design the dial plan with various rules for URIs and numbers coming through the device. To do so, it is important that some dial plan rules are applied in a certain order. When configuring the transform section, you must know the range of the priorities.
Which range is correct?
- A. any number between 1-65534
- B. any number between 1-128
- C. any number in the drop-down menu
- D. any number in the dialog box
Answer: A
NEW QUESTION 22
What is the Cisco-recommended key length in bits for a Cisco Expressway certificate?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 23
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 5061
- C. _cisco-uds-edge on port 5061
- D. _collab-edge on port 8443
Answer: D
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 24
Refer to the exhibit.
While troubleshooting Cisco Jabber login issues, there are some error messages. Why is the Jabber client unable to sign in?
- A. service discovery issues
- B. XMPP bind failures
- C. down Cisco Unified Communications Manager server
- D. incorrect login credentials
Answer: B
NEW QUESTION 25
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. The video call is using 4K resolution, which is not supported by ICE with CUCM 12.5
- B. A STUN cannot punch holes in the firewall
- C. ICE cannot reduce the packet loss on the link
- D. The video call is using encryption, which is not supported by ICE with CUCM 12.5
Answer: B
NEW QUESTION 26
Refer to the exhibit.
An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9.
Which value should be entered into the "Source" field to prevent toll fraud regardless at origin of the call?
- A. Any
- B. Neighbor Zone
- C. All
- D. Traversal Zone
Answer: C
NEW QUESTION 27
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 credential has been entered correctly.
- C. Ensure that the _cisco-uds SRV record has been configured.
- D. Ensure that the SIP domains are added on Expressway Core.
Answer: B
NEW QUESTION 28
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 29
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. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.
- C. The call fails.
- D. Another node in the cluster is used and an intra-cluster cascade between Webex and the new Video Mesh node is formed.
Answer: D
NEW QUESTION 30
Refer to the exhibit.
While troubleshooting Cisco Jabber login issues, there are some error messages. Why is the Jabber client unable to sign in?
- A. service discovery issues
- B. XMPP bind failures
- C. down Cisco Unified Communications Manager server
- D. incorrect login credentials
Answer: B
Explanation:
Explanation
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-5/Mobile-Remote-Ac
NEW QUESTION 31
Which two statements about Mobile and Remote Access certificate are true? (Choose two.)
- A. You must upload the root certificates in the phone trust store.
- B. The Jabber client can work with public or private CA signed certificate.
- C. Expressway Core can use private CA signed certificate.
- D. Expressway must generate certificate signing request.
- E. Expressway Edge must use public CA signed certificate.
Answer: D,E
NEW QUESTION 32
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. _sips._udp.example.com
- D. _h323ls._udp.example com
- E. _h323ls._tcp.example.com
Answer: B,D
Explanation:
Explanation
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-1/Cisco-Expressway-
NEW QUESTION 33
Refer to the exhibit.
An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9.
Which value should be entered into the "Source" field to prevent toll fraud regardless at origin of the call?
- A. Any
- B. Neighbor Zone
- C. All
- D. Traversal Zone
Answer: C
NEW QUESTION 34
Which media encryption mode can be configured on an Expressway zone?
- A. Advanced Encryption Standard
- B. force unencrypted
- C. IPsec
- D. Triple Data Encryption Standard
Answer: A
NEW QUESTION 35
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 traversal zone.
- B. 13358 is sent directly to the traversal zone.
- C. 13358 is replaced by 135, and then is sent to the local zone.
- D. 13358 is replaced by 135 and remains in the same zone.
Answer: B
NEW QUESTION 36
Refer to the exhibit.
Which description of the transformation is true?
- A. It converts [email protected]:<port> to [email protected]
- B. It changes all patterns that begin with [email protected]:<port> to [email protected]
- C. It converts [email protected]:<port> to [email protected]
- D. It changes [email protected]:<port> to [email protected]
Answer: C
NEW QUESTION 37
Refer to the exhibit.
Which two outbound connections should an administrator configure on the internal firewall? (Choose two.)
- A. Media: UDP 36012 to 59999
- B. XMPP: TCP 7400
- C. SIP: TCP 7001
- D. SIP TCP 5061
- E. HTTPS: TCP 8443
Answer: B,C
NEW QUESTION 38
Refer to the exhibit.
If the Webex Teams device cannot connect to Video Mesh Cluster-1 because it is busy, which media node does the Webex Teams device connect to next?
- A. Both Cloud Node US-EAST and US-WEST
- B. Video Mesh Cluster-2
- C. Cloud Node US-EAST
- D. Cloud Node US-WEST
Answer: B
NEW QUESTION 39
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 credential has been entered correctly.
- C. Ensure that the _cisco-uds SRV record has been configured.
- D. Ensure that the SIP domains are added on Expressway Core.
Answer: B
NEW QUESTION 40
Which statement about scheduling Expressway backups is true?
- A. It is not supported on the application.
- B. It is allowed from the application GUI of the Expressway only.
- C. It is allowed from the application CLI of the Expressway only.
- D. It is allowed from the application CLI and GUI of the Expressway.
Answer: A
NEW QUESTION 41
Which step is taken when configuring a Cisco Expressway solution?
- A. Enable static NAT on the Expressway-E only.
- B. Disable H.323 mode on the Expressway-E.
- C. Enable H.323 H.460.19 demultiplexing mode on the Expressway-C.
- D. Configure the Expressway-E by using a non-traversal server zone.
Answer: A
NEW QUESTION 42
Refer to the exhibit.
An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9.
Which value should be entered into the "Source" field to prevent toll fraud regardless at origin of the call?
- A. Any
- B. All
- C. Neighbor Zone
- D. Traversal Zone
Answer: A
NEW QUESTION 43
Jabber cannot log in via Mobile and Remote Access. You inspect Expressway-C logs and see this error message:
XCP_JABBERD Detail="Unable to connect to host '%IP%', port 7400:(111) Connection refused"
Which is the cause of this issue?
- A. Expressway-E is listening on the wrong IP interface.
- B. The destination port for Expressway-E is set to 7400 instead of 8443 on the Expressway-C.
- C. Rich Media Session licenses are not activated on Expressway-E.
- D. The XCP Service is not activated on Expressway-E.
Answer: A
NEW QUESTION 44
An administrator has been tasked to bulk entitle 200 existing users and ensure all future users are automatically configured for the Webex Hybrid Calendar Service. Which two options should be used to configure these users? (Choose two.)
- A. Set up an Auto-Assign template that enables Hybrid Calendar.
- B. Select the Hybrid Services settings card in the Cisco Webex Control Hub and import a User Status report that contains only users to be enabled.
- C. From Cisco Webex Control Hub, verify the domain that your Hybrid Calendar users will use, which
- D. On the Users tab in the Cisco Webex Control Hub, check the box next to each user who should be enabled, then click the toggle for the Hybrid Calendar service to turn it on.
- E. Export a CSV list of users in the Cisco Webex Control Hub, set the Hybrid Calendar Service to TRUE for users to be enabled, then import the file back to Manage Users menu in the Cisco Webex Control Hub.
Answer: C,E
Explanation:
automatically activates them for the service.
NEW QUESTION 45
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300-820 Exam Dumps, 300-820 Practice Test Questions: https://drive.google.com/open?id=1EPvdiR8jcDvZdlabfLNv0GpSuLYAytD5