[2021] 300-820 PDF Questions - Perfect Prospect To Go With Test4Sure Practice Exam
Cisco 300-820 Pdf Questions - Outstanding Practice To your Exam
NEW QUESTION 29
Refer to the exhibit. Logins and failing via mobile and remote access. How is this resolved?
- A. SIP is disabled on the Expressway-E. The SIP protocol must be enabled on the server.
- B. No Cisco UCM servers are configured in the Expressway-C. Servers must be added for CallManager and IM and Presence services.
- C. 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.
- D. Although a traversal client zone exists, there is no Unified Communications traversal client zone. One must be created.
Answer: B
NEW QUESTION 30
Refer to the exhibit.
When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?
- A. 13358 is replaced by 135, and then is sent to the local zone.
- B. 13358 is replaced by 135, and then is sent to the traversal zone.
- C. 13358 is sent directly to the traversal zone.
- D. 13358 is replaced by 135 and remains in the same zone.
Answer: C
NEW QUESTION 31
Refer to the exhibit.
Which two outbound connections should an administrator configure on the internal firewall? (Choose two.)
- A. SIP: TCP 7001
- B. HTTPS: TCP 8443
- C. XMPP: TCP 7400
- D. SIP TCP 5061
- E. Media: UDP 36012 to 59999
Answer: A,C
NEW QUESTION 32
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 firewall is blocking the port.
- C. The SRV record for _cisco-uds is misconfigured.
- D. Transform is not configured on Expressway-E.
- E. The Unified Communications zone is down.
Answer: B,C
NEW QUESTION 33
Refer to the exhibit.
Which description of the transformation is true?
- A. It changes all patterns that begin with [email protected]:<port> to [email protected]
- B. It converts [email protected]:<port> to [email protected]
- C. It converts [email protected]:<port> to [email protected]
- D. It changes [email protected]:<port> to [email protected]
Answer: B
NEW QUESTION 34 
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. Disable SIP in the external zone.
- B. Change the domain of SIP endpoint A to cisco.com.
- C. Create a presearch transform.
- D. Change the interworking mode to On.
Answer: D
NEW QUESTION 35
Refer to the exhibit.
If the Webex Teams device cannot connect to Video Mesh Cluster-1 because it is busy, which media node does the Webex Teams device connect to next?
- A. Both Cloud Node US-EAST and US-WEST
- B. Cloud Node US-WEST
- C. Cloud Node US-EAST
- D. Video Mesh Cluster-2
Answer: D
NEW QUESTION 36
Jabber cannot log in via Mobile and Remote Access. You inspect Expressway-C logs and see this error message:
XCP_JABBERD Detail="Unable to connect to host '%IP%', port 7400:(111) Connection refused"
Which is the cause of this issue?
- A. Rich Media Session licenses are not activated on Expressway-E.
- B. The XCP Service is not activated on Expressway-E.
- C. Expressway-E is listening on the wrong IP interface.
- D. The destination port for Expressway-E is set to 7400 instead of 8443 on the Expressway-C.
Answer: C
NEW QUESTION 37
Refer to the exhibit.
Which description of the transformation is true?
- A. It changes all patterns that begin with [email protected]:<port> to [email protected]
- B. It converts [email protected]:<port> to [email protected]
- C. It converts [email protected]:<port> to [email protected]
- D. It changes [email protected]:<port> to [email protected]
Answer: B
NEW QUESTION 38 
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?
- A. Change the SIP profile on the SIP trunk for the Expressway-E to Standard SIP Profile for TelePresence Endpoint
- B. Enable autoregistration for the appropriate DN range on the Cisco UCM servers running the CallManager service
- C. Write a custom normalization script since the "vcs-interop" normalization script does not allow registrations
- D. Change the "Incoming Port" in the SIP Trunk Security Profile for the Expressway-C to not match SIP line registrations
Answer: D
NEW QUESTION 39
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 enablement allows for the Cisco Collaboration endpoint to register through Expressway servers to Cisco Unified Communications Manager behind a firewall.
- C. ICE enables Cisco Collaboration endpoints to determine if there is direct connectivity between them.
- D. 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.
Answer: C
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/solutions/PA/ICE/icepa125.html
NEW QUESTION 40
Which attribute in the SDP for a call is affected by the static NAT address configuration in an Expressway-E?
- A. name
- B. version
- C. connection
- D. bandwidth
Answer: A
NEW QUESTION 41
Refer to the exhibit.
Which two numbers match the regular expression? (Choose two.)
- A. 0
- B. d20d16d20d22
- C. d209d165d200d224
- D. 1
- E. 2
Answer: A,E
NEW QUESTION 42
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._udp.example.com
- D. _h323ls_tcp.example.com
- E. _sips._udp.example.com
Answer: B,C
NEW QUESTION 43
An organization wants to enable a Cisco Webex connector to synchronize all employees automatically with Cisco Webex instead of using a manual list.
Where is the Webex Hybrid Directory Service configured?
- A. Install the Cisco Express Connector and configure the device in Cisco Unified Communications Manager under Cisco Unified Serviceability and add the service in Webex Control Hub.
- B. Enable the directory service in Cisco Unified Communications Manager under Cisco Unified Serviceability and add the service in Webex Control Hub.
- C. Enable the directory service on Cisco Expressway Edge for Office 365 or Cisco Expressway Core for internal Active Directory and add the service in Webex Control Hub.
- D. Install Cisco Directory Connector on a Microsoft Windows Domain server and configure the software and Webex Control Hub.
Answer: D
NEW QUESTION 44
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 45
What is the purpose of a transform in the Expressway server?
- A. A transform is used to route calls to a destination.
- B. A transform changes the audio codec when the call goes through the Expressway.
- C. A transform has the function as a neighbor zone in the Expressway. It creates a connection with another server.
- D. A transform changes an alias that matches certain criteria into another alias.
Answer: D
NEW QUESTION 46
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