[Dec-2021] CCNP Collaboration 300-820 Exam Practice Test Questions Dumps Bundle!
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NEW QUESTION 20
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. A STUN cannot punch holes in the firewall
- B. ICE cannot reduce the packet loss on the link
- C. The video call is using 4K resolution, which is not supported by ICE with CUCM 12.5
- D. The video call is using encryption, which is not supported by ICE with CUCM 12.5
Answer: A
NEW QUESTION 21
Which SIP media encryption mode is applied by default for newly created zones in the Cisco Expressway?
- A. Best Effort
- B. Force Encrypted
- C. Auto
- D. C.......
Answer: C
NEW QUESTION 22
Refer to the exhibit.
Which inbound connection should an administrator configure on the outside firewall?
- A. XMPP TCP 5222
- B. HTTPS (tunneled over SSH between C and E): TCP 2222
- C. SIP TCP 5061
- D. Media: UDP 36000 to 36011
Answer: D
NEW QUESTION 23
Which step is required when configuring Cisco Webex Hybrid Message Service?
- A. Add Expressway-C and Cisco United CM to the Cisco Webex Cloud.
- B. Add Cisco Unity Connection to Expressway-E.
- C. Register Expressway-C to Cisco Unified Communications Manager.
- D. Register Expressway-C Connector Hosts to the Cisco Webex Cloud.
Answer: D
NEW QUESTION 24
Refer to the exhibit.
When a Jabber user attempts to connect from outside of the organization, the user enters the login information as "[email protected]" and receives the error "Cannot find your services Automatically". The engineer tries to resolve SRV records used by Jabber.
DNS A record "expressway-e.example.com" points to the Expressway-E IP and "cucm.example.com" points to the Cisco Unified Communications Manager.
Which change resolves the DNS problem?
- A. Remove the cisco-uds SRV record for the external DNS.
- B. Change the collab-edge record to point to 5061.
- C. Change cisco-uds to point to the Expressway-E FQDN.
- D. Change the priority of the SRV record for cisco-uds.
Answer: A
NEW QUESTION 25
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 fails.
- B. Another node in the cluster is used and an intra-cluster cascade between Webex and the new Video Mesh node is formed.
- C. The call is queued.
- D. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.
Answer: B
NEW QUESTION 26
Refer to the exhibit.
What is the result of a transformation applied to alias 88514?
- A. [email protected]
- B. [email protected]
- C. 88513@ccnpcollab com
- D. [email protected]
Answer: A
NEW QUESTION 27
Refer to the exhibit.
Which description of the transformation is true?
- A. It converts [email protected]:<port> to [email protected]
- B. It converts [email protected]:<port> to [email protected]
- C. It changes [email protected]:<port> to [email protected]
- D. It changes all patterns that begin with [email protected]:<port> to [email protected]
Answer: A
NEW QUESTION 28
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. Configure the Expressway-C Traversal Client zone transport protocol with TCP.
- D. Add an intermediate certificate to the Expressway-C that is signed by a certificate authority.
Answer: A
NEW QUESTION 29
What is configured on the Expressway-E to successfully route calls from Expressway-C on the internal network to the Internet?
- A. Application layer gateway is enabled to bridge the media traffic.
- B. A static NAT route is added to the firewall to bridge the two networks.
- C. The Expressway-E is enabled for interworking
- D. The Expressway-E is enabled for Dual-NIC capability.
Answer: D
NEW QUESTION 30
Refer to the exhibit. The administrator attempted to log in, but Jabber clients cannot log in via mobile and remote access. How is this issue resolved?
- A. The domain pod1.local must be deprovisioned from the Webex cloud for Jabber logins.
- B. Skype for Business mode must be disabled on the DNS server because it conflicts with Jabber login requirements.
- C. The username [email protected] is invalid. The user should instead sign-in simply as jabberuser.
- D. A DNS SRV record must be created for _collab-edge._tls.pod1.local that points to the Expressway-E.
Answer: D
NEW QUESTION 31
Refer to the exhibit.
What is the result of a transformation applied to alias 88514?
- A. [email protected]
- B. [email protected]
- C. 88513@ccnpcollab com
- D. [email protected]
Answer: A
NEW QUESTION 32
Cisco Collaboration endpoints are exchanging encrypted signaling messages.
What is one major complication in implementing NAT ALG for voice and video devices?
- A. Source addresses cannot provide the destination addresses that remote endpoints should use for return packets.
- B. The NAT ALG cannot inspect the contents of encrypted signaling messages.
- C. Internal endpoints cannot use addresses from the private address space.
- D. NAT ALG introduces jitter in the voice path.
Answer: B
Explanation:
Explanation
https://www.voipinfo.net/docs/cisco/collab11.pdf
NEW QUESTION 33
What should an engineer use to create users for a Cisco Jabber Cloud Deployment?
- A. Cisco Webex Directory Connector
- B. Cisco Unified IM and Presence Server
- C. Cisco Webex Administration Tool
- D. Cisco UCM
Answer: C
Explanation:
Reference:
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/jabber/12_6/cjab_b_cloud-and-hybrid-deploymentscisco-jabber-12-6/cjab_b_cloud-and-hybrid-deployments-cisco-jabber-12-6_chapter_0101.html
NEW QUESTION 34
Which two considerations must be made when using Expressway media traversal? (Choose two.)
- A. Cisco UCM zone should be either traversal server or client
- B. The Expressway-E must be put in a firewall DMZ segment
- C. The Unified Communications traversal zone should be used for MRA
- D. Expressway Control is the traversal server installed in the DMZ
- E. It is possible to NAT both Expressway-E interfaces
Answer: B,C
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 local zone.
- B. 13358 is replaced by 135, and then is sent to the traversal zone.
- C. 13358 is replaced by 135 and remains in the same zone.
- D. 13358 is sent directly to the traversal zone.
Answer: B
NEW QUESTION 36
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