[Oct 23, 2021] Get Free Updates Up to 365 days On Developing 300-820 Braindumps [Q55-Q75]

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[Oct 23, 2021] Get Free Updates Up to 365 days On Developing 300-820 Braindumps

Best Quality Cisco 300-820 Exam Questions

NEW QUESTION 55
When a Cisco Webex Video Mesh Node is configured for an organization, which process does the Webex Teams client use to discover the optimal bridging resource?

  • A. a reachable Video Mesh Node and then overflows to the cloud, if needed
  • B. the lowest STUN round-trip delay to each node and cloud
  • C. the SIP delay header during call setup
  • D. an HTTPS speed and latency test to each node and the cloud

Answer: A

 

NEW QUESTION 56
Cisco media traversal technology has enabled a secure environment where internal video endpoints call and receive calls from external video endpoints. How does the Expressway-C and Expressway-E communicate?

  • A. Expressway-E establishes an outgoing request to Expressway-C, enabling the Expressway-C in the DMZ to notify the internal Expressway-E of an incoming call from an external endpoint.
  • B. Internal endpoints are registered to Expressway-C in the DMZ. Expressway-E, which is also in the DMZ, will receive and make calls on behalf of Expressway-C because they are in the same network.
  • C. Internal endpoints are registered to Expressway-E in the DMZ. Expressway-C, which is also in the DMZ, will receive and make calls on behalf of Expressway-E because they are in the same network.
  • D. Expressway-C establishes an outgoing request to Expressway-E, enabling the Expressway-E in the DMZ to notify the internal Expressway-C of an incoming call from an external endpoint.

Answer: D

 

NEW QUESTION 57
Refer to the exhibit.

An Expressway-C and Expressway-E are configured for B2B calling and the Expressway- E zone is set to TLS Verify Currently, calls do not reach the Expressway-C. The Traversal Client zone on the Expressway-C for B2B reports the information in the exhibit for the Peer 1 address.
Which action resolves this error?

  • A. Add a server certificate to the Expressway-C that is signed by a certificate authority.
  • B. Configure the Expressway-C Traversal Client zone Peer 1 address with the fully qualified domain name of the Expressway-E.
  • C. Add an intermediate certificate to the Expressway-C that is signed by a certificate authority.
  • D. Configure the Expressway-C Traversal Client zone transport protocol with TCP.

Answer: A

 

NEW QUESTION 58
Which media encryption mode can be configured on an Expressway zone?

  • A. force unencrypted
  • B. Triple Data Encryption Standard
  • C. Advanced Encryption Standard
  • D. IPsec

Answer: C

 

NEW QUESTION 59
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. Cloud Node US-WEST
  • C. Cloud Node US-EAST
  • D. Video Mesh Cluster-2

Answer: D

 

NEW QUESTION 60
Which two licenses are required for the B2B feature to work? (Choose two.)

  • A. Traversal Server
  • B. Device Provisioning
  • C. Advanced Networking
  • D. Rich Media Sessions
  • E. TURN Relays

Answer: A,D

 

NEW QUESTION 61
Refer to the exhibit.

Which description of the transformation is true?

Answer: B

 

NEW QUESTION 62
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. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.
  • B. The call is queued.
  • C. Another node in the cluster is used and an intra-cluster cascade between Webex and the new Video Mesh node is formed.
  • D. The call fails.

Answer: C

 

NEW QUESTION 63
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

Explanation:
Explanation
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-1/Cisco-Expressway-

 

NEW QUESTION 64
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. A STUN cannot punch holes in the firewall
  • C. The video call is using encryption, which is not supported by ICE with CUCM 12.5
  • D. The video call is using 4K resolution, which is not supported by ICE with CUCM 12.5

Answer: C

Explanation:
Explanation/Reference:

 

NEW QUESTION 65
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 66
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. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.
  • B. The call is queued.
  • C. Another node in the cluster is used and an intra-cluster cascade between Webex and the new Video Mesh node is formed.
  • D. The call fails.

Answer: C

 

NEW QUESTION 67
What is a requirement when configuring the Cisco Webex Hybrid Message account for accessing the API of the Cisco UCM IM and Presence Service?

  • A. Use an application user with only the "Standard CTI Allow Control of All Devices" role
  • B. Use an application user not the main administrator account with the "Standard AXL API Access" role
  • C. Add a new end-user with the "Standard AXL API Access" role
  • D. Use the main administrator account if it includes the "Standard AXL API Access" role

Answer: B

 

NEW QUESTION 68
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 69
Which zone is required between Expressway-E and Expressway-C in Mobile and Remote Access deployments?

  • A. Unified Communications traversal zone
  • B. neighbor zone
  • C. traversal zone
  • D. DNS zone

Answer: A

 

NEW QUESTION 70
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 CM and Cisco Webex Control Hub.
  • C. Create user accounts in Cisco Webex Control Hub only.
  • D. Create user accounts in Cisco Unified IM and Presence.

Answer: C

 

NEW QUESTION 71
Refer to the exhibit.

When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?

  • A. 13358 is sent directly to the traversal zone.
  • B. 13358 is replaced by 135, and then is sent 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 72
Which two statements about Cisco Webex Video Mesh Nodes are true? (Choose two.)

  • A. The cascading traffic between VMN must bypass the firewall.
  • B. When Expressway Core works with VMN clusters, Expressway Core decides which VMN is used for signaling/media connection.
  • C. A VMN can terminate a media connection while operating in maintenance mode.
  • D. When Cisco Unified Communications Manager works with multiple VMNs, Cisco Unified CM decides which VMN is used for signaling connection.
  • E. Cloud-registered devices choose a VMN cluster based on the lowest STUN round trip delay.

Answer: D,E

Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Collaboration/hybrid/12x/hybcvd/hms.html

 

NEW QUESTION 73
How does an administrator configure an Expressway to make sure an external caller cannot reach a specific internal address?

  • A. add the specific URI in the firewall section of the Expressway and block it
  • B. add a search rule route all calls to the Cisco UCM
  • C. block the call with a call policy rule in the Expressway-E
  • D. configure FAC for the destination alias on the Expressway

Answer: C

 

NEW QUESTION 74
When designing the call control on a Cisco Expressway Core, which is the sequence of dial plan functions?

  • A. search rules, zones, local zones
  • B. transforms, CPL, user policy, search rules
  • C. search rules, transforms
  • D. DNS zone, local zone, search rules

Answer: C

Explanation:
Explanation
https://community.cisco.com/t5/collaboration-voice-and-video/vcs-dial-plan-example-configuration-to-avoid-int

 

NEW QUESTION 75
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