300-820 Free Practice Test

Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?

1. A. _cisco-uds._tcp.<domain>
2. B. _cisco-mra._tls.
3. C. _collab-edge._tls.
4. D. _cisco-expwy._tls.

Correct Answer: A

What is the purpose of a transform in the Expressway server?

1. A. A transform has the function as a neighbor zone in the Expresswa
2. B. It creates a connection with another server.
3. C. A transform changes the audio codec when the call goes through the Expressway.
4. D. A transform is used to route calls to a destination.
5. E. A transform changes an alias that matches certain criteria into another alias.

Correct Answer: D

A company already has a Cisco Unified Communications Manager for internal audio and video traffic, but it requires video communication with external partners and customers. It is important to ensure security for the deployment and the connectivity.
What must be set up to enable this requirement?

1. A. Cisco Unified Border Element and Cisco ASA Firewall
2. B. Cisco Unified Border Element and Cisco Firepower Firewall
3. C. Cisco Expressway-C and Cisco Expressway-E
4. D. Cisco Expressway-C and Cisco Unified Border Element

Correct Answer: C

Which statement about the Cisco Webex hybrid service is true?

1. A. Expressway Connector is required for an on-premises Exchange server.
2. B. Hybrid Message service works only with Jabber cloud deployment.
3. C. Directory Connector is required for Azure AD.
4. D. Directory Connector must be deployed for OBTP to work with on-premises video devices.

Correct Answer: D

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

Correct Answer: D