300-820 practice questions 151–160

1. Question 151 · 177 in bank

   Select 2

   

   Refer to the exhibit. An engineer must configure a B2B traversal zone. Trusted certification authority and server certificates are uploaded to Cisco Expressway-C and Expressway-E servers. After the traversal zone configuration is completed in Expressway-C, the error message in the exhibit appears. What are the two reasons for the error? (Choose two.)

   • AThe peer 1 address in Expressway-C must be replaced by the FQDN of Expressway-C.
   • BThe peer 1 address in Expressway-C is not the FADN of Expressway-E.
   • CThe communication port is not set to 7001.
   • DThe FQDN of Expressway-E cannot be resolved by the DNS server.
   • EThe traversal zone TLS verify subject name in Expressway-E does not match the FQDN of Expressway-C.

   Show answer

   Answer: BE

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2. Question 152 · 177 in bank

   In which mode does the Cisco Expressway act as a SIP-H.323 gateway only if one or more of the endpoints are locally registered?

   • Aregistered only
   • Bgateway only
   • Coff
   • Don

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   Answer: A

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3. Question 153 · 177 in bank

   When does the Webex App Endpoint send media to the Video Mesh cluster during a meeting?

   • Awhen the Webex cloud media services are offline
   • Bwhen there is insufficient bandwidth at the MPLS WAN edge.
   • Cwhen the round-trip delay to the Video Mesh cluster is shorter than the round-trip delay to the Webex cloud media services
   • Dwhen there is insufficient bandwidth at the internet edge

   Show answer

   Answer: C

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4. Question 154 · 177 in bank

   In a larger Cisco Collaboration deployment, a user requires the advanced file transfer function in Cisco Jabber while the client is using Mobile and Remote Access. The deployment has multiple Expressway clusters and internal Cisco UCM clusters. Which configuration must be applied on Cisco Expressway-C for this function to be available?

   • AThe HTTP Allow List must be manual or use Automatic inbound rules updated to include all Cisco IM and Presence servers.
   • BThe HTTPS Allow List must be manual or use Automatic inbound rules updated to include all Cisco IM and Presence servers.
   • CThe HTTP Allow List must use Automatic update rules to include all Cisco UCM servers.
   • DThe HTTP Allow List must use Automatic update rules to include all Cisco IM and Presence servers.

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   Answer: A

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5. Question 155 · 177 in bank

   

   Refer to the exhibit. Which SIP trunk security profile configuration on the Cisco UCM server is used for a secured SIP trunk to an Expressway server that is already integrated with the Cisco UCM for Mobile and Remote Access?

   • ADevice Security Mode: Encrypted - Incoming Transport Type: TLS - Outgoing Transport Type: TLS - Incoming Port*: 5061
   • BDevice Security Mode: Encrypted - Incoming Transport Type: TLS - Outgoing Transport Type: TLS - Incoming Port*: 6061
   • CDevice Security Mode: Non-Secure Incoming Transport Type: TCP+UDP Outgoing Transport Type: TCP - Incoming Port*: 5060
   • DDevice Security Mode: Authenticated Incoming Transport Type: TLS - Outgoing Transport Type: TLS - Incoming Port*: 6061

   Show answer

   Answer: A

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6. Question 156 · 177 in bank

   What is the default file extension for saving Cisco Expressway-C backups when using the Google Chrome browser?

   • A.tar.gz.enc
   • B.tar.tar.gz
   • C.zip
   • D.tar.gz.gz

   Show answer

   Answer: A

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7. Question 157 · 177 in bank

   An engineer is configuring Cisco Expressway-E and needs to implement toll fraud prevention. Which configuration meets this requirement?

   • AEnable SIP ALG inspection on the network address translation firewall.
   • BEnable and configure local call policy.
   • CEnable and configure the Expressway-E firewall.
   • DConfigure the external firewall to block specific IPs.

   Show answer

   Answer: B

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8. Question 158 · 177 in bank

   In Cisco Expressway, which information from an incoming search request does the pre-search transform configuration allow to be modified?

   • Acalling party
   • Bcalled address
   • CSource IP address
   • DCLID

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   Answer: B

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9. Question 159 · 177 in bank

   

   Refer to the exhibit. A manager asks an engineer to create a CSV file for the HTTP allow list on the Expressway deployment. The engineer wrote the script shown and uploaded it to the Expressway, but it is not being accepted. Which action resolves the issue?

   • AAdd the command POST at the end on this line “http://myServer4/myPath4,block,,,POST”.
   • BRemove the Method “PUT” from “http://myServer2:8000/myPath2,allow “my deployment”, “an allow test”, PUT”.
   • CRemove the line “https://myServer4/myPath4,allow,,,GET”.
   • DNothing is wrong, but the file type is most likely not XML.

   Show answer

   Answer: A

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10. Question 160 · 177 in bank

    

    Refer to the exhibit. The web server is set up to store contact photos and the Cisco Jabber-config.xml file is updated for all clients. After these changes, Jabber for Windows users cannot view the contact photos when they are connected via Mobile and Remote Access. Which action resolves the issue?

    • AUpdate the “PhotoUriWithToken’ entry to “Https”.
    • BUpdate the contact photos to “png”.
    • CAdd the web-server address within the HTTP server allow list on the Expressway-C.
    • DAdd the web-server address within the HTTP server allow list on the Expressway-E.

    Show answer

    Answer: D

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300-820 practice, question 151. 177 questions available.