300-820 Cisco Exam Questions and Free Practice Test

Question 7

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. Create a presearch transform.

B. Change the domain of SIP endpoint A to cisco.com.

C. Disable SIP in the external zone.

D. Change the interworking mode to On.

Correct Answer:D

Question 8

Which statement about the Cisco Webex hybrid service is true?

A. Expressway Connector is required for an on-premises Exchange server.

B. Hybrid Message service works only with Jabber cloud deployment.

C. Directory Connector is required for Azure AD.

D. Directory Connector must be deployed for OBTP to work with on-premises video devices.

Correct Answer:D

Question 9

Which two statements about Mobile and Remote Access certificate are true? (Choose two.)

A. Expressway Core can use private CA signed certificate.

B. You must upload the root certificates in the phone trust store.

C. Expressway must generate certificate signing request.

D. Expressway Edge must use public CA signed certificate.

E. The Jabber client can work with public or private CA signed certificate.

Correct Answer:CD

Question 10

Which DNS record and port combination must be resolved externally for Mobile and Remote Access to be used?

A. _collab-edge on port 8443

B. _cisco-uds-edge on port 5061

C. _collab-edge on port 5061

D. _cisco-uds on port 8443

Correct Answer:A

Question 11

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. Rich Media Session licenses are not activated on Expressway-E.

B. Expressway-E is listening on the wrong IP interface.

C. The destination port for Expressway-E is set to 7400 instead of 8443 on the Expressway-C.

D. The XCP Service is not activated on Expressway-E.

Correct Answer:B

Question 12

For a Mobile and Remote Access deployment, which server's certificate must include the Unified registration domain as a Subject Alternate Name?

A. Expressway-C server certificate

B. Cisco Unified Communications Manager server certificate

C. Expressway-E server certificate

D. Expressway-C and Expressway-E server certificate

Correct Answer:C

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