[Jan 17, 2024] Get New 300-820 Practice Test Questions Answers [Q78-Q95]

QUESTION 78
Cisco Collaboration endpoints are exchanging encrypted signaling messages.
What is one major complication in implementing NAT ALG for voice and video devices?

QUESTION 79

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?

QUESTION 80
Refer to the exhibit.

Which two outbound connections should an administrator configure on the internal firewall? (Choose two.)

QUESTION 81
An administrator must configure the DNS SRV records for Mobile and Remote Access for a company with the domain example.com, the Expressway-E FQDN is ExpE.example.com, and the Expressway-C FQDN is Exp-C.example.com. What must the administrator configure to allow external clients to discover the Expressway-E server?

QUESTION 82
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?

QUESTION 83
Which two considerations must be made when using Expressway media traversal? (Choose two.)

QUESTION 84
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?

QUESTION 85
Refer to the exhibit. Logins and failing via mobile and remote access. How is this resolved?

QUESTION 86
When a Cisco Webex Video Mesh Node is co figured for an organization, which process does the Webex Teams client use to discover the optimal bridging resource?

QUESTION 87
A Cisco Webex Hybrid Video Mesh Node can be installed in the DMZ and on the internal network.
Which statement is true?

QUESTION 88
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?

QUESTION 89
Which dial plan settings can be used to set up different regulations according to the protocol (SIP or H.323) or the source of the query?

QUESTION 90
When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?

QUESTION 91
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?

QUESTION 92
Refer to the exhibit.

Which two numbers match the regular expression? (Choose two.)

QUESTION 93
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?

QUESTION 94
An administrator configures a secure SIP trunk in Cisco UCM to Expressway-C. The SIP trunk fails to become active, and an examination of a packet capture finds that the TLS handshake failed with a “Certificate Unknown” error from Cisco UCM. To allow the Cisco UCM to trust the Expressway-C and establish a TLS connection, the administrator will upload the Expressway server certificate to the trust store. To which trust store must the certificate be uploaded?

QUESTION 95
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?