Mar-2024 Realistic 300-820 Exam Dumps with Accurate & Updated Questions
300-820 Exam Dumps - PDF Questions and Testing Engine
Cisco 300-820 certification exam is designed to test the candidate's knowledge and skills in implementing Cisco Collaboration Cloud and Edge Solutions. 300-820 exam is intended for professionals who work in the field of collaboration and communication technologies and want to validate their expertise in designing and implementing Cisco collaboration solutions.
NEW QUESTION # 37
What are two reasons why port 8443 is unreachable from the Internet to the Expressway-E? (Choose two.)
- A. Transform is not configured on Expressway-E.
- B. The firewall is blocking the port.
- C. The SRV record for _cisco-uds is misconfigured.
- D. The Unified Communications zone is down.
- E. The MRA license is missing on the Expressway-E.
Answer: B,C
NEW QUESTION # 38
A company has enabled ICE to optimize call flows and improve video quality between their Cisco Collaboration endpoints internally and externally.
For which reason would you see activity on the TURN server when a call is established between two external endpoints?
- A. The video call is using 4K resolution, which is not supported by ICE with CUCM 12.5
- B. A STUN cannot punch holes in the firewall
- C. ICE cannot reduce the packet loss on the link
- D. The video call is using encryption, which is not supported by ICE with CUCM 12.5
Answer: B
NEW QUESTION # 39
Which situation requires TCP port 443 to be open for packets that are sourced from the Internet with a destination in the corporate DMZ?
- A. when you require encrypted calls to endpoints on your corporate LAN
- B. when you want to enable calls to web applications by using HTTP
- C. when you require administrative access to the Cisco Expressway Edge from the Internet
- D. when video endpoints that reside on the Internet require administrative access to the Cisco Expressway Edge
Answer: C
NEW QUESTION # 40
Refer to the exhibit.
What is the result of a transformation applied to alias 88514?
- A. 88513@ccnpcollab com
- B. [email protected]
- C. [email protected]
- D. [email protected]
Answer: B
NEW QUESTION # 41
Refer to the exhibit.
When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?
- A. 13358 is sent directly to the traversal zone.
- B. 13358 is replaced by 135, and then is sent to the traversal zone.
- C. 13358 is replaced by 135 and remains in the same zone.
- D. 13358 is replaced by 135, and then is sent to the local zone.
Answer: B
NEW QUESTION # 42
Which mode should be used when Call Policy is configured on Expressways?
- A. local CPL, policy service, and off
- B. extended CPL
- C. remote CPL
- D. on
Answer: D
Explanation:
Explanation
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/admin_guide/Cisco-Expressway-Admin
NEW QUESTION # 43
Refer to the exhibit.
An Expressway-C and Expressway-E are configured for B2B calling and the Expressway- E zone is set to TLS Verify Currently, calls do not reach the Expressway-C. The Traversal Client zone on the Expressway-C for B2B reports the information in the exhibit for the Peer 1 address.
Which action resolves this error?
- A. Configure the Expressway-C Traversal Client zone transport protocol with TCP.
- B. Add an intermediate certificate to the Expressway-C that is signed by a certificate authority.
- C. Add a server certificate to the Expressway-C that is signed by a certificate authority.
- D. Configure the Expressway-C Traversal Client zone Peer 1 address with the fully qualified domain name of the Expressway-E.
Answer: D
NEW QUESTION # 44
An administrator installs a new webserver (server1.example.com - 10.1.1.90) for storing Cisco Jabber update files to the network, but all Mobile and Remote Access registered clients still run the old Jabber software version, and the update fails. Which configuration task on an Expressway server solves the Jabber software update issue?
- A. Run an IM and Presence server discovery process on Expressway-C to add the new web server to the inbound HTTP allow list automatically.
- B. Add a rule with the URL http://server1.example.com:80/ to the outbound HTTP allow list manually to allow pushing the new software to the clients.
- C. Add a rule with the server IP address 10.1.1.90 in the URL to the inbound HTTP allow list because server names and FQDNs are not supported.
- D. Add a rule with the URL http://server1.example.com:80/ to the inbound HTTP allow list manually to allow access to the new web server.
Answer: D
NEW QUESTION # 45
Refer to the exhibit. An administrator troubleshoots Cisco Jabber users experiencing issues when trying to log in and notices errors in the Jabber problem report log. The administrator also sees that the Intercluster Sync Agent service is not running on the IMM and Presence server. Why is the Jabber client unable to sign in?
- A. The XMPP stanza is not using the correct ID for the Jabber client.
- B. The XmppSDK.dl file is missing from the IM and Presence server
- C. The Jabber client refused the XMPP bind connection.
- D. The XMPP bind failed on the IM and Presence server
Answer: D
NEW QUESTION # 46
Refer to the exhibit.
A new neighbor zone is added for a new Cisco Meeting Server, but the zone is showing a SIP status of failed from the time the zone it was created. What should be done to resolve this issue?
- A. More bandwidth must be added to the appropriate pipes
- B. The underlying DNS issue must be resolved
- C. The existing zone using ID 7 must be deleted
- D. The search rule must be changed to continue on match
Answer: D
NEW QUESTION # 47
When designing the call control on a Cisco Expressway Core, which is the sequence of dial plan functions?
- A. search rules, transforms
- B. transforms, CPL, user policy, search rules
- C. search rules, zones, local zones
- D. DNS zone, local zone, search rules
Answer: B
Explanation:
https://ccieme.wordpress.com/2016/11/07/14-4-cisco-vcs-dial-plan-components/
NEW QUESTION # 48
Refer to the exhibit. Cisco Unified Communications Manager routes the call via the Webex Meetings route list and route group to the Video Mesh cluster Node#1 in the Video Mesh cluster is hosting the meeting and has reached full capacity, but other nodes in the cluster still have spare capacity.
What happens to the participant's call?
- A. The call is queued.
- B. Another node in the cluster is used and an intra-cluster cascade between Webex and the new Video Mesh node is formed.
- C. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.
- D. The call fails.
Answer: C
Explanation:
If the node hosting the meeting reaches full capacity, another node in the cluster will be used and an intra-cluster cascade will be formed. (The intra-cluster cascade routes from node to node, not via Webex.)
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Collaboration/hybrid/12x/hybcvd/hms.html
NEW QUESTION # 49
Which part of a hybrid cloud-based deployment with Cisco Webex Messenger Service is used for meeting capabilities?
- A. Depending on the origin of the user, the Webex Meeting Center or local Cisco Unified Communications Manager meeting resources are used for meeting capabilities.
- B. Depending on the media flow, the Webex Meeting Center or local Cisco Unified CM meeting resources are used for meeting capabilities.
- C. Cisco Webex Meeting Center is always used for meeting capabilities.
- D. Cisco Unified CM is always used for meeting capabilities.
Answer: C
Explanation:
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/jabber/12_8/cjab_b_planning-guide-cisco- jabber-128/cjab_b_planning-guide-cisco-jabber-
128_chapter_010.html?bookSearch=true#CJAB_RF_H9B69A5D_00
NEW QUESTION # 50
Which service is available in a cloud-based deployment using Cisco Webex Messenger?
- A. Voicemail
- B. Phone services
- C. Call forward services
- D. Presence
Answer: D
Explanation:
The following services are available in a cloud-based deployment using Webex Messenger:
- Contact Source
- Presence
- Instant Messaging
- Conferencing
NEW QUESTION # 51
Refer to the exhibit.
An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9.
Which value should be entered into the "Source" field to prevent toll fraud regardless at origin of the call?
- A. Traversal Zone
- B. All
- C. Neighbor Zone
- D. Any
Answer: B
NEW QUESTION # 52
How does an administrator configure an Expressway to make sure an external caller cannot reach a specific internal address?
- A. add a search rule route all calls to the Cisco UCM
- B. block the call with a call policy rule in the Expressway-E
- C. configure FAC for the destination alias on the Expressway
- D. add the specific URI in the firewall section of the Expressway and block it
Answer: B
NEW QUESTION # 53
When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?
- A. SIP record route
- B. SDP m-line
- C. SDP c-line
- D. SDP b-line
Answer: A
NEW QUESTION # 54
In a Mobile and Remote Access deployment, where must communications be encrypted with TLS?
- A. Cisco Expressway-C, Cisco Expressway-E, and endpoints outside the enterprise
- B. Cisco Expressway-E and endpoints outside the enterprise
- C. Cisco Expressway-C, Cisco Expressway-E, and Cisco Unified Communications Manager
- D. Cisco Expressway-C, Cisco Unified Communications Manager, and IM&P
Answer: A
Explanation:
All signaling between the Cisco Expressway-E and the external endpoints must be encrypted and depending on the endpoint software version, traffic must also be authenticated with certificates.
The communication between the Cisco Expressway-C and the Cisco Expressway-E must always be encrypted and authenticated using server certificates from both servers.
MRA requires secure communication between Expressway-C and Expressway-E, and between Expressway-E and external endpoints.
https://www.cisco.com/c/en/us/support/docs/unified-communications/expressway/118798- technote-cucm-00.html
NEW QUESTION # 55
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