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| Type | Number of exam questions | Exam name | Exam code |
| Free | 15 | Implementing Cisco Collaboration Cloud and Edge Solutions (CLCEI) | 300-820 |
Question 1:
In a Mobile and Remote Access deployment, where must communications be encrypted with TLS?
A. Cisco Expressway-E and endpoints outside the enterprise
B. Cisco Expressway-C, Cisco Unified Communications Manager, and IMandP
C. Cisco Expressway-C, Cisco Expressway-E, and Cisco Unified Communications Manager
D. Cisco Expressway-C, Cisco Expressway-E, and endpoints outside the enterprise
Correct Answer: D
Question 2:
Which media encryption mode can be configured on an Expressway zone?
A. Advanced Encryption Standard
B. IPsec
C. Triple Data Encryption Standard
D. force unencrypted
Correct Answer: D
Question 3:
An organization has a domain name of example.com. Which two SRV records are valid for a SIP and H 323 communication? (Choose two)
A. _collab-edge._tls.example.com
B. _sips_tcp.example.com
C. _h323ls_tcp.example.com
D. _h323ls._udp.example.com
E. _sips._udp.example.com
Correct Answer: BD
Question 4:
Refer to the exhibit.
Which two outbound connections should an administrator configure on the internal firewall? (Choose two.)
A. XMPP: TCP 7400
B. SIP: TCP 7001
C. SIP TCP 5061
D. Media: UDP 36012 to 59999
E. HTTPS: TCP 8443
Correct Answer: AB
The internal firewall must allow the following outbound connections from the Expressway-C to the Expressway-E: SIP: TCP 7001 Traversal media: UDP 2776 to 2777 (or 36000 to 36011 for large VM/appliance) XMPP: TCP 7400 HTTPS (tunneled over SSH between C and E): TCP 2222 Source: Official Cert Guide
Question 5:
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 6:
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 7:
An MRA deployment is being configured where one of the requirements is for registered Jabber users to pull directory photos from an internal server. What should be configured on the Expressway-C so that MRA-registered clients reach this server?
A. A search rule must be created to route the requests to Cisco UCM.
B. The directory photo server must be added to the HTTP allow list.
C. A neighbor zone must be created to the directory photo server.
D. The directory photo server FQDN must be added to the Expressway-C certificate.
Correct Answer: B
Question 8:
Which SIP media encryption mode is applied by default for newly created zones in the Cisco Expressway?
A. Off
B. Auto
C. Force Encrypted
D. Best Effort
Correct Answer: B
Auto – no specific media encryption policy is applied by the Expressway. Media encryption is purely dependent on the target system/endpoint requests. This is the default behavior and is equivalent to how the Expressway operated before this feature was introduced.
Question 9:
What are two reasons why port 8443 is unreachable from the Internet to the Expressway- E? (Choose two.)
A. The MRA license is missing on the Expressway-E.
B. The Unified Communications zone is down.
C. Transform is not configured on Expressway-E.
D. The SRV record for _cisco-uds is misconfigured.
E. The firewall is blocking the port.
Correct Answer: BE
Question 10:
Which configuration is required when implementing Mobile and Remote Access on Cisco Expressway?
A. IPS
B. SAML authentication
C. Cisco Unified CM publisher address
D. SSO
Correct Answer: C
Question 11:
Which describes what could be done on the Expressway-E to successfully route calls from Expressway-C on the internal network to the Internet?
A. Application layer gateway could be enabled to bridge the media traffic.
B. A static NAT route could be added to the firewall to bridge the two networks.
C. The Expressway-E could be enabled for Dual-NIC capability.
D. The Expressway-E could be enabled for interworking.
Correct Answer: C
Question 12:
How does an administrator configure an Expressway to make sure an external caller cannot reach a specific internal address?
A. add the specific URI in the firewall section of the Expressway and block it
B. block the call with a call policy rule in the Expressway-E
C. add a search rule route all calls to the Cisco UCM
D. configure FAC for the destination alias on the Expressway
Correct Answer: B
Question 13:
What is the purpose of a transform in the Expressway server?
A. A transform has the function of a neighbor zone in the Expressway. It creates a connection with another server.
B. A transform changes the audio codec when the call goes through the Expressway.
C. A transform is used to route calls to a destination.
D. A transform changes an alias that matches certain criteria into another alias.
Correct Answer: D
Question 14:
An engineer wants to configure a zone on Expressway-E to receive communications from Expressway-C in order to allow inbound and outbound calls. How is the peer address configured on Expressway-C when Expressway-E has only one NIC enabled and is using static NAT mode?
A. Expressway-E FQDN
B. Cisco UCM FQDN
C. Expressway-E DHCP
D. Cisco UCM DHCP
Correct Answer: A
Question 15:
A call is sent by Cisco UCM to Expressway with a URI of [email protected].
If (7508…) @expc1a\.pod8\.test\.lab.* is the pattern string, what would be the replacement string of the transform in Expressway to re-write the call so that it becomes [email protected]?
A. \1@conf\.pod8.test.lab.@
B. \1@conf\.pod8\.test\lab.*
C. \[email protected]\.test\.lab
D. \1@conf\.pod8\.test.lab.!
Correct Answer: C
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