Cisco 300-820 Practice Test - Questions Answers, Page 7
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Which DNS record and port combination must be resolved externally for Mobile and Remote Access to be used?
_collab-edge on port 8443
_cisco-uds-edge on port 5061
_collab-edge on port 5061
_cisco-uds on port 8443
Which two statements about Mobile and Remote Access certificate are true? (Choose two.)
Expressway Core can use private CA signed certificate.
You must upload the root certificates in the phone trust store.
Expressway must generate certificate signing request.
Expressway Edge must use public CA signed certificate.
The Jabber client can work with public or private CA signed certificate.
In a Mobile and Remote Access deployment, where must communications be encrypted with TLS?
Cisco Expressway-E and endpoints outside the enterprise
Cisco Expressway-C, Cisco Unified Communications Manager, and IM&P
Cisco Expressway-C, Cisco Expressway-E, and Cisco Unified Communications Manager
Cisco Expressway-C, Cisco Expressway-E, and endpoints outside the enterprise
When determining why Mobile and Remote Access to Cisco TelePresence equipment does not work anymore for an organization. There are several administrators and configuration changes could have happened without anyone knowing. Internal communication seems to be working, but no external system can register or call anywhere. Gathering symptoms, you also discover that no internal systems can call out either.
What is TraversalZone missing that causes this issue?
link to the DefaultZone
pipe to the DefaultZone
SIP trunk to the DefaultZone
route pattern to the DefaultZone
Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?
_cisco-uds._tcp.<domain>
_cisco-mra._tls.<domain>
_collab-edge._tls.<domain>
_cisco-expwy._tls.<domain>
Refer to the exhibit. An engineer is deploying mobile and remote access in an environment that already had functioning Business to Business calling. Mobile and remote access SIP registrations are failing. To troubleshoot, SIP logs were collected. How is this issue resolved?
Change the SIP profile on the SIP trunk for the Expressway-E to Standard SIP Profile for TelePresence Endpoint
Change the "Incoming Port" in the SIP Trunk Security Profile for the Expressway-C to not match SIP line registrations
Enable autoregistration for the appropriate DN range on the Cisco UCM servers running the CallManager service
Write a custom normalization script since the "vcs-interop" normalization script does not allow registrations
Refer to the exhibit. Logins and failing via mobile and remote access. How is this resolved?
Mobile and remote access login has not been enabled for the domain configured in the Expressway-C. The domain must be edited to allow Cisco UCM registrations.
SIP is disabled on the Expressway-E. The SIP protocol must be enabled on the server.
No Cisco UCM servers are configured in the Expressway-C. Servers must be added for CallManager and IM and Presence services.
Although a traversal client zone exists, there is no Unified Communications traversal client zone. One must be created.
Refer to the exhibit. Mobile and remote access is being added to an existing B2B deployment and is failing. When the administrator looks at the alarms on the Expressway-C, the snippets are shown. Which configuration action should the administrator take to fix this issue?
The listening port on the Expressway-C for SIP TCP must be changed to a value other than 5060
The listening port on the Expressway-C for SIP TLS must be changed to a value other than 5061
The listening port on the Cisco UCM for the Expressway-C SIP trunk must be changed to something other than 5060 or 5061
The listening port on the Cisco UCM for the Expressway-C SIP trunk is set to something other than 5060 or 5061. It must be set to 5060 for insecure and 5061 for secure SIP
Refer to the exhibit. The administrator attempted to log in, but Jabber clients cannot log in via mobile and remote access. How is this issue resolved?
Skype for Business mode must be disabled on the DNS server because it conflicts with Jabber login requirements.
The domain pod1.local must be deprovisioned from the Webex cloud for Jabber logins.
A DNS SRV record must be created for _collab-edge._tls.pod1.local that points to the Expressway-E.
The username [email protected] is invalid. The user should instead sign-in simply as jabberuser.
Refer to the exhibit showing logs from the Expressway-C, a copy of the Expressway-E certificate, and the UC traversal zone configuration for the Expressway-C.
An office administrator is deploying mobile and remote access and sees an issue with the UC traversal zone. The zone is showing “TLS negotiation failure”.
What is causing this issue?
The Expressway-E certificate includes the Expressway-C FQDN as a SAN entry
The Expressway-C is missing the FQDN of Cisco UCM in the Common Name of its certificate
In the UC Traversal Zone on the Expressway-C, the peer address is set to the IP of the Expressway-E, which is not a SAN entry in the Expressway-E certificate
The Expressway-E does not have the FQDN of Cisco UCM listed as a SAN in its certificate
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