VALID 300-820 Exam Dumps For Certification Exam Preparation
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NEW QUESTION # 53
Refer to the exhibit.
When a Jabber user attempts to connect from outside of the organization, the user enters the login information as "[email protected]" and receives the error "Cannot find your services Automatically". The engineer tries to resolve SRV records used by Jabber.
DNS A record "expressway-e.example.com" points to the Expressway-E IP and "cucm.example.com" points to the Cisco Unified Communications Manager.
Which change resolves the DNS problem?
- A. Change cisco-uds to point to the Expressway-E FQDN.
- B. Remove the cisco-uds SRV record for the external DNS.
- C. Change the collab-edge record to point to 5061.
- D. Change the priority of the SRV record for cisco-uds.
Answer: B
NEW QUESTION # 54
An Expressway-E is configured using a single NIC with NAT.
How must the Expressway-C traversal client zone be configured to connect to the Expressway-E?
- A. The peer address must be the Expressway-E NAT address.
- B. The zone profile must be set to default.
- C. TLS verify must be enabled.
- D. The peer address must be the Expressway-E LAN 1 IP address.
Answer: A
NEW QUESTION # 55 
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. Change the interworking mode to On.
- B. Create a presearch transform.
- C. Change the domain of SIP endpoint A to cisco.com.
- D. Disable SIP in the external zone.
Answer: A
NEW QUESTION # 56
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
Answer: C
NEW QUESTION # 57
Which configuration does Cisco recommend for the peer address on the Expressway-C secure traversal zone when the Expressway-E has one NIC enabled?
- A. Expressway-E internal FQDN
- B. Expressway-E external IP address
- C. Expressway-E external FQDN
- D. Expressway-E internal IP address
Answer: C
NEW QUESTION # 58
What it is the purpose of using ICE for Mobile and Remote Access endpoints in the Cisco Collaboration infrastructure?
- A. ICE controls the bandwidth usage for Cisco Collaboration endpoints if the endpoints are located outside the company network.
- B. ICE uses FAST updates to optimize the video quality in case of packet loss. This technology is available only from Cisco Unified CM version 11.5 and later.
- C. ICE enablement allows for the Cisco Collaboration endpoint to register through Expressway servers to Cisco Unified Communications Manager behind a firewall.
- D. ICE enables Cisco Collaboration endpoints to determine if there is direct connectivity between them.
Answer: D
Explanation:
https://www.cisco.com/c/en/us/td/docs/solutions/PA/ICE/icepa125.html
NEW QUESTION # 59
An administrator has been tasked to bulk entitle 200 existing users and ensure all future users are automatically configured for the Webex Hybrid Calendar Service. Which two options should be used to configure these users? (Choose two.)
- A. On the Users tab in the Cisco Webex Control Hub, check the box next to each user who should be enabled, then click the toggle for the Hybrid Calendar service to turn it on.
- B. Export a CSV list of users in the Cisco Webex Control Hub, set the Hybrid Calendar Service to TRUE for users to be enabled, then import the file back to Manage Users menu in the Cisco Webex Control Hub.
- C. Select the Hybrid Services settings card in the Cisco Webex Control Hub and import a User Status report that contains only users to be enabled.
- D. From Cisco Webex Control Hub, verify the domain that your Hybrid Calendar users will use, which
- E. Set up an Auto-Assign template that enables Hybrid Calendar.
Answer: B,D
Explanation:
automatically activates them for the service.
NEW QUESTION # 60
What is the default DSCP value for video traffic that is routed through an Expressway server?
- A. 0
- B. 1
- C. 2
- D. 24
Answer: C
NEW QUESTION # 61
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. All
- B. Neighbor Zone
- C. Traversal Zone
- D. Any
Answer: D
NEW QUESTION # 62
An administrator is configuring a new Cisco Webex Hybrid Message Service deployment, and the Expressway-C Message Connector is successfully registered in the Control Hub. After the server information of the IM and Presence server is added to the Expressway-C, an error "Connectivity to IM and Presence AXL Service could not be established" is displayed in the Control Hub. The Cisco AXL Web Service is enabled on the IM and Presence Service publisher, and the main administrator account enabled for AXL API permission is being used. Which configuration change must be made to resolve this error?
- A. Enable the Cisco AXL Web Service on the Expresswav-C Message Connector
- B. Enable a second administrator account for AXL API permissions on the IM and Presence Service publisher
- C. Enable the Cisco AXL Web Service on the Control Hub
- D. Enable an End User account for AXLAPI permissions on the IM and Presence Service publisher
Answer: B
NEW QUESTION # 63
An organization wants to be able to call IP addresses and URI addresses. An engineer must configure Cisco Expressways to manage this request from the endpoints in the organization. How would the engineer configure the Expressways to allow these calls to be completed to external IP addresses?
- A. Set calls to unknown IP addresses to direct on the Cisco Expressways, and add a search rule on the Expressway-E
- B. Set calls to unknown IP addresses to indirect on the Expressway-C and direct on the Expressway-E, and add a search rule on the Expressway-E
- C. Set calls to unknown IP addresses to indirect on the Cisco Expressways, and add a search rule on the Expressway-E
- D. Use search rules to manage calls to IP addresses, and the direct/indirect setting on the Expressway is used as a fallback only if the search rules do not exist
Answer: B
Explanation:
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/admin_guide/X14-
0/exwy_b_cisco-expressway-administrator-guide/exwy_m_dial-plan-and-call-processing.html
NEW QUESTION # 64
Refer to the exhibit. A company has a Cisco collaboration infrastructure that contains Cisco UCM and Cisco Expressway-C and Expressway-E for Mobile and Remote Access. When the engineer sets up the environment to support B2B calling, they discover that the zone stale between Expressway-C and Cisco UCM failed. What must the STEP Trunk Security Profile setting be changed to in Cisco UCM to resolve the issue?
- A. TCP for the incoming transport type
- B. UDP for the outgoing transport type
- C. value other than the default listening port for outgoing SIP connections on Cisco UCM
- D. value other than the default listening port for incoming SIP connections on Cisco UCM
Answer: A
NEW QUESTION # 65
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. Neighbor Zone
- B. Traversal Zone
- C. Any
- D. All
Answer: D
NEW QUESTION # 66
Cisco media traversal technology has enabled a secure environment where internal video endpoints call and receive calls from external video endpoints. How does the Expressway-C and Expressway-E communicate?
- A. Expressway-E establishes an outgoing request to Expressway-C, enabling the Expressway-C in the DMZ to notify the internal Expressway-E of an incoming call from an external endpoint.
- B. Internal endpoints are registered to Expressway-E in the DMZ. Expressway-C, which is also in the DMZ, will receive and make calls on behalf of Expressway-E because they are in the same network.
- C. Expressway-C establishes an outgoing request to Expressway-E, enabling the Expressway-E in the DMZ to notify the internal Expressway-C of an incoming call from an external endpoint.
- D. Internal endpoints are registered to Expressway-C in the DMZ. Expressway-E, which is also in the DMZ, will receive and make calls on behalf of Expressway-C because they are in the same network.
Answer: C
NEW QUESTION # 67
Refer to the exhibit.
Which description of the transformation is true?
- A. It changes [email protected]:<port> to [email protected]
- B. It changes all patterns that begin with [email protected]:<port> to [email protected]
- C. It converts [email protected]:<port> to [email protected]
- D. It converts [email protected]:<port> to [email protected]
Answer: D
NEW QUESTION # 68
Which statement about scheduling Expressway backups is true?
- A. It is allowed from the application CLI and GUI of the Expressway.
- B. It is allowed from the application GUI of the Expressway only.
- C. It is allowed from the application CLI of the Expressway only.
- D. It is not supported on the application.
Answer: A
NEW QUESTION # 69
Refer to the exhibit. Logins and failing via mobile and remote access. How is this resolved?
- A. Although a traversal client zone exists, there is no Unified Communications traversal client zone. One must be created.
- B. 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.
- C. No Cisco UCM servers are configured in the Expressway-C. Servers must be added for CallManager and IM and Presence services.
- D. SIP is disabled on the Expressway-E. The SIP protocol must be enabled on the server.
Answer: C
NEW QUESTION # 70
Refer to the exhibit. Calls to locally registered endpoints are failing. At present, there are two endpoints registered locally to this Expressway.
An H.323 endpoint with an alias of "EndpointA" is registered, and a SIP endpoint with an alias of
"[email protected]" is also registered. How is this issue resolved?
- A. The calls are failing because there are insufficient licenses. Additional licenses must be installed for the Expressway to route these calls.
- B. The current search rule does not match the call, so the search rule must be modified to include a SIP Variant of "Standards-Based".
- C. Calling parties are placing calls with the wrong domain. End-users must be instructed not to use the pod1.local domain as that is owned by the local system. Calls to any other domain would work.
- D. The dialplan must be redesigned to use the transforms to convert the alias into SIP URI format and then use separate search rules for each format that needs to be dialed within the local zone.
Answer: D
NEW QUESTION # 71
How does an administrator configure an Expressway to make sure an external caller cannot reach a specific internal address?
- A. configure FAC for the destination alias on the Expressway
- B. add a search rule route all calls to the Cisco UCM
- C. block the call with a call policy rule in the Expressway-E
- D. add the specific URI in the firewall section of the Expressway and block it
Answer: C
NEW QUESTION # 72
An administrator made changes to a directory connector for Webex AD synchronization. The number of users synchronized is quite large and the change should affect only a limited number of users. How can the administrator check the result before executing the synchronization?
- A. Initiate a dry run of an incremental synchronization from the Director Connector in Control Hub.
- B. Initiate an incremental synchronization from the Director Connector app on the on-premises Windows server because it will ask to save the changes.
- C. Initiate an incremental synchronization from the Director Connector in Control Hub because it will ask to save changes.
- D. Initiate a dry run of an incremental synchronization from the Director Connector app on the on-premises Windows server.
Answer: C
NEW QUESTION # 73
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