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Pass CCNP Collaboration 300-820 Exam With 98 Questions
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.
NEW QUESTION 33
When deploying an Expressway Core and Expressway Edge cluster for mobile and remote access, which TLS verity subject name must be configured on the Expressway-E UC traversal zone?
- A. Cisco Unified Communications Manager Publisher FQDN
- B. Webex CUSP Cluster Name
- C. Expressway-E Cluster Name
- D. Expressway-C Cluster Name
Answer: C
NEW QUESTION 34
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. The destination port for Expressway-E is set to 7400 instead of 8443 on the Expressway-C.
- B. Rich Media Session licenses are not activated on Expressway-E.
- C. Expressway-E is listening on the wrong IP interface.
- D. The XCP Service is not activated on Expressway-E.
Answer: C
NEW QUESTION 35
Which two types of information does Cisco Expressway back up? (Choose two.)
- A. log files
- B. IP addresses
- C. call records
- D. security certificates
- E. current call states
Answer: D,E
NEW QUESTION 36
An engineer is deploying an Expressway solution for the SIP domain Cisco.com. Which SRV record should be configured in the public DNS to support inbound B2B calls?
- A. _cisco-uds._tcp.cisco.com
- B. _sip._tcp.cisco.com
- C. _cuplogin._tcp.cisco.com
- D. _collab-edge._tls.cisco.com
Answer: B
Explanation:
Reference:
https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2018/pdf/BRKCOL-2018.pdf
NEW QUESTION 37
Which statement about scheduling Expressway backups is true?
- A. It is allowed from the application GUI of the Expressway only.
- B. It is allowed from the application CLI of the Expressway only.
- C. It is allowed from the application CLI and GUI of the Expressway.
- D. It is not supported on the application.
Answer: C
NEW QUESTION 38
For a Mobile and Remote Access deployment, which server's certificate must include the Unified registration domain as a Subject Alternate Name?
- A. Cisco Unified Communications Manager server certificate
- B. C.Expressway-E server certificate
- C. Expressway-C and Expressway-E server certificate
- D. Expressway-C server certificate
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 SIP domains are added on Expressway Core.
- B. Ensure that the peer address does not match the Common Name on certificate.
- C. Ensure that the _cisco-uds SRV record has been configured.
- D. Ensure that the credential has been entered correctly.
Answer: D
NEW QUESTION 40
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. Change the collab-edge record to point to 5061.
- B. Change cisco-uds to point to the Expressway-E FQDN.
- C. Change the priority of the SRV record for cisco-uds.
- D. Remove the cisco-uds SRV record for the external DNS.
Answer: D
NEW QUESTION 41
Refer to the exhibit.
In an environment SIP devices are registered to CUCM and H.323 devices to VCS. What would be required to enable these calls to setup correctly?
- A. Change the interworking mode to On.
- B. Create a presearch transform.
- C. Disable SIP in the external zone.
- D. Change the domain of SIP endpoint A to cisco.com.
Answer: A
NEW QUESTION 42
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. down Cisco Unified Communications Manager server
- B. service discovery issues
- C. incorrect login credentials
- D. XMPP bind failures
Answer: D
NEW QUESTION 43 
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 remains in the same 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 then is sent to the local zone.
Answer: B
NEW QUESTION 44
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. All
- B. Neighbor Zone
- C. Traversal Zone
- D. Any
Answer: A
NEW QUESTION 45
A Cisco Webex Hybrid Video Mesh Node can be installed in the DMZ and on the internal network.
Which statement is true?
- A. Using internal Video Mesh Node also works due to Mobile and Remote Access setup for Webex Teams clients. A DMZ node is added for extra security.
- B. Webex Cloud supports either a DMZ-based Mesh Node for security or an internal-based Mesh Node for media control only.
- C. Installing a Video Mesh Node in the DMZ requires you to open TCP and UDP port 4444 in your internal firewall for full clustering functionality.
- D. Installing a Video Mesh Node in the DMZ requires the external firewall to allow UDP traffic from ANY port to the address of the Video Mesh Nodes via port 5004.
Answer: D
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Collaboration/hybrid/12x/hybcvd/hms.html
NEW QUESTION 46
Which SIP media encryption mode is applied by default for newly created zones in the Cisco Expressway?
- A. Off
- B. Auto
- C. Best Effort
- D. Force Encrypted
Answer: B
NEW QUESTION 47
What is a key configuration requirement for Hybrid Message Service High Availability deployment with multiple IM and Presence clusters?
- A. AXL service should be activated only on the publisher of each IM and Presence cluster.
- B. Your IM and Presence Service clusters must have Multiple Device Messaging disabled.
- C. You must have the Intercluster Sync Agent working across your IM and Presence clusters.
- D. You must have the Intercluster Lookup Service working across all of your IM and Presence clusters.
Answer: C
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/spark/hybridservices/messageservice
NEW QUESTION 48
What is the Cisco-recommended key length in bits for a Cisco Expressway certificate?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 49
Which two items are configured when deploying a B2B collaboration solution? (Choose two.)
- A. traversal client on a Cisco Expressway-E
- B. DNS zone on a Cisco Expressway-C
- C. search rules in Cisco Expressway-E
- D. SIP trunk between Cisco Unified Communications Manager and Cisco Expressway-C
- E. SIP trunk between Cisco Unified Communications Manager and Cisco Expressway-E
Answer: C,D
NEW QUESTION 50
Which zone is required on a B2B deployment between Expressway-C and Expressway-E?
- A. DNS zone
- B. default zone
- C. traversal zone
- D. neighbor zone
Answer: C
NEW QUESTION 51
An Expressway-E is configured using a single NIC with NAT.
How must the Expressway-C traversal client zone be configured to connect to the Expressway-E?
- A. The zone profile must be set to default.
- B. The peer address must be the Expressway-E LAN 1 IP address.
- C. TLS verify must be enabled.
- D. The peer address must be the Expressway-E NAT address.
Answer: D
NEW QUESTION 52
Which two considerations must be made when using Expressway media traversal? (Choose two.)
- A. The Expressway-E must be put in a firewall DMZ segment
- B. Cisco UCM zone should be either traversal server or client
- 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: A,C
NEW QUESTION 53
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. Change the collab-edge record to point to 5061.
- B. Change cisco-uds to point to the Expressway-E FQDN.
- C. Change the priority of the SRV record for cisco-uds.
- D. Remove the cisco-uds SRV record for the external DNS.
Answer: D
NEW QUESTION 54
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