Latest Cisco 300-820 PDF and Dumps (2023) Free Exam Questions Answers
Pass Your CCNP Collaboration 300-820 Exam on Dec 02, 2023 with 157 Questions
NEW QUESTION # 92
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 # 93
Cisco Collaboration endpoints are exchanging encrypted signaling messages. What is one complication in implementing NAT ALG for voice and video devices?
- A. NAT ALG is not compatible with the H.323 signaling protocol.
- B. NAT ALG introduces latency in the media path.
- C. The NAT ALG cannot inspect the contents of encrypted signaling messages.
- D. NAT ALG requires the use of NAT reflection, which may not be supported on all firewalls.
Answer: C
NEW QUESTION # 94
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 XCP Service is not activated on Expressway-E.
- C. The destination port for Expressway-E is set to 7400 instead of 8443 on the Expressway-C.
- D. Rich Media Session licenses are not activated on Expressway-E.
Answer: A
NEW QUESTION # 95
The Cisco Webex Hybrid Message service is deployed geographically for separate Cisco Unified IM and Presence clusters.
What must be configured in the Cisco Webex Control Hub to achieve this deployment?
- A. verified domains
- B. resource groups
- C. geo-locations
- D. distributed DNS
Answer: B
Explanation:
You can use Resource Groups in Control Hub to define your organization's geography, and then assign Expressway resources to different resource groups that represent locations.
The set of users you assign to each resource group should correspond to the users in all IM and Presence Service clusters served by the Expressways in those resource groups.
NEW QUESTION # 96
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: D
NEW QUESTION # 97
A company is installing Cisco Collaboration infrastructure and one of the requirements is that they must be able to communicate with many external parties that are using H.323 and SIP. Internally they want to register the endpoints only on SIP.
Which functionality would describe the feature that needs to be enabled and where to achieve this?
- A. Transcoding in Cisco Unified Communications Manager
- B. Interworking in Expressway-C
- C. Interworking in Cisco Unified Communications Manager
- D. Transcoding in Expressway-C
Answer: A
NEW QUESTION # 98
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 cisco-uds to point to the Expressway-E FQDN.
- B. Change the collab-edge record to point to 5061.
- 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 # 99
Refer to the exhibit.
The firewall has been configured from NAT 192.168.108.2 to 100.64.0.1. Which configuration changes are needed for an Expressway-E with dual network interfaces?
A)
B)
C)
D)
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: D
NEW QUESTION # 100
A Cisco Webex Hybrid Video Mesh Node can be installed in the DMZ and on the internal network.
Which statement is true?
- A. 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.
- 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. 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.
Answer: A
Explanation:
The external firewall will need to allow UDP traffic from ANY port to the address of the Video Mesh Nodes via port 5004, so that roaming Webex Teams endpoints can send media to the nodes. This is not a preferred approach.
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Collaboration/hybrid/12x/hybcvd/hms.html
NEW QUESTION # 101
Cisco Expressways are being deployed for Mobile and Remote Access. The Expressway-E internal interface (LAN1) IP is 192.168.100.10/24, and the external interface (LAN2) IP is
172.16.100.10/24.
The Expressway-C IP is 192.168.20.10/24. The default gateway for each subnet is the first useable address. How must the Expressway-E be configured to allow proper routing to the internal and external networks?
- A. IPv4 gateway: 192.168.100.1, and a static route for the 172.16.100.0/24 subnet using LAN2
- B. IPv4 gateway: 192.168.100.1, and a static route for the 192.168.20.0/24 subnet using LAN1
- C. IPv4 gateway: 172.16.100.1, and a static route for the 192.168.20.0/24 subnet using LAN1
- D. IPv4 gateway: 172.16.100.1, and a static route for the 192.168.100.0/24 subnet using LAN1
Answer: C
NEW QUESTION # 102
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 # 103 
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. Any
- D. Traversal Zone
Answer: A
NEW QUESTION # 104
Which two licenses are required for the B2B feature to work? (Choose two.)
- A. Device Provisioning
- B. Traversal Server
- C. Advanced Networking
- D. TURN Relays
- E. Rich Media Sessions
Answer: A,E
NEW QUESTION # 105
Refer to the exhibit.
Which two numbers match the regular expression? (Choose two.)
- A. 0
- B. d209d165d200d224
- C. d20d16d20d22
- D. 1
- E. 2
Answer: A,D
NEW QUESTION # 106
An engineer configures a Cisco Collaboration environment to use Mobile and Remote Access for external access for company users. The engineer uses OAuth with refresh on the Cisco UCM SIP lines for extra security and improved user experience. During the setup, Mobile and Remote Access does not work, it is enabled on the Cisco UCM and Cisco Expressways. SIP trunks on ports 5090 and 5091 are configured to avoid conflicts with other SIP trunks between internal Cisco UCM clusters. The traversal zone also uses port 6500. The traversal zone between Expressways shows no errors, and the requests hit Expressway-E from the Internet. What is the reason that the solution does not work?
- A. The default port for Mobile and Remote Access is 6001. Therefore, the traversal port must be port
6001 for Mobile and Remote Access to work. - B. The default port for Mobile and Remote Access is 5091, which creates a conflict with the existing SIP trunks.
- C. The default port for Mobile and Remote Access is 6500, which creates a conflict with the existing traversal zone port.
- D. Mobile and Remote Access does not support OAuth with refresh with this configuration,
Answer: B
NEW QUESTION # 107
Which media encryption mode can be configured on an Expressway zone?
- A. Triple Data Encryption Standard
- B. force unencrypted
- C. Advanced Encryption Standard
- D. IPsec
Answer: B
Explanation:
Available modes are "Force encrypted, Force unencrypted, Auto and Best Effort".
NEW QUESTION # 108
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. 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.
- B. 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.
- C. Set up an Auto-Assign template that enables Hybrid Calendar.
- D. From Cisco Webex Control Hub, verify the domain that your Hybrid Calendar users will use, which
- E. 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.
Answer: B,D
Explanation:
automatically activates them for the service.
NEW QUESTION # 109
Which two statements about Cisco Webex Video Mesh Nodes are true? (Choose two.)
- A. The cascading traffic between VMN must bypass the firewall.
- B. Cloud-registered devices choose a VMN cluster based on the lowest STUN round trip delay.
- C. When Expressway Core works with VMN clusters, Expressway Core decides which VMN is used for signaling/media connection.
- D. When Cisco Unified Communications Manager works with multiple VMNs, Cisco Unified CM decides which VMN is used for signaling connection.
- E. A VMN can terminate a media connection while operating in maintenance mode.
Answer: B,D
NEW QUESTION # 110
Which two statements about Cisco Webex Video Mesh Nodes are true? (Choose two.)
- A. The cascading traffic between VMN must bypass the firewall.
- B. Cloud-registered devices choose a VMN cluster based on the lowest STUN round trip delay.
- C. When Expressway Core works with VMN clusters, Expressway Core decides which VMN is used for signaling/media connection.
- D. When Cisco Unified Communications Manager works with multiple VMNs, Cisco Unified CM decides which VMN is used for signaling connection.
- E. A VMN can terminate a media connection while operating in maintenance mode.
Answer: B,D
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Collaboration/hybrid/12x/hybcvd/hms.html
NEW QUESTION # 111
Which type of interface is required when the Cisco Expressway-E is located in a DMZ between two separate firewalls on separate network segments?
- A. application programming interface
- B. dual network interface
- C. command line interface
- D. single network interface
Answer: B
NEW QUESTION # 112
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300-820 Free Exam Study Guide! (Updated 157 Questions): https://drive.google.com/open?id=1Sytg3SNSDFhPtG2O7cpx_4Vy-i1i4sWr