Cisco 300-820 Real 2021 Braindumps Mock Exam Dumps
300-820 Exam Questions | Real 300-820 Practice Dumps
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NEW QUESTION 35
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. Expressway-E is listening on the wrong IP interface.
- B. The destination port for Expressway-E is set to 7400 instead of 8443 on the Expressway-C.
- C. Rich Media Session licenses are not activated on Expressway-E.
- D. The XCP Service is not activated on Expressway-E.
Answer: A
Explanation:
Explanation
https://www.cisco.com/c/en/us/support/docs/unified-communications/expressway/118798-technote-cucm-00.htm
NEW QUESTION 36
A Jabber user is being prompted to trust the Expressway-E certificate when using Mobile and Remote Access. The administrator has validated that the Expressway-E certificate is being trusted by the machine running the Jabber client.
What else can be done to solve this problem?
- A. Include Cisco Unified Communications Manager registration domain in the Expressway-E certificate as a SAN.
- B. Change the FQDN of the Expressway.
- C. Create a new CSR with new information on the SAN field.
- D. Change the domain name.
Answer: A
NEW QUESTION 37
Refer to the exhibit.
Mobile Cisco Jabber cannot register with on-premises Cisco Unified Communications Manager using Mobile and Remote Access. Some logs were captured on Expressway Edge.
Which action corrects this problem?
- A. Ensure that the credential has been entered correctly.
- B. Ensure that the _cisco-uds SRV record has been configured.
- C. Ensure that the peer address does not match the Common Name on certificate.
- D. Ensure that the SIP domains are added on Expressway Core.
Answer: A
NEW QUESTION 38
Which part of a hybrid cloud-based deployment with Cisco Webex Messenger Service is used for meeting capabilities?
- A. Cisco Unified CM is always 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. Depending on the origin of the user, the Webex Meeting Center or local Cisco Unified Communications Manager meeting resources are used for meeting capabilities.
- D. Cisco Webex Meeting Center is always used for meeting capabilities.
Answer: D
NEW QUESTION 39
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 traversal zone.
- B. 13358 is replaced by 135, and then is sent to the local 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 40
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 current search rule does not match the call, so the search rule must be modified to include a SIP Variant of "Standards-Based".
- B. Calling parties are placing calls with the wrong domain. End-users must be instructed not to use the
- C. The calls are failing because there are insufficient licenses. Additional licenses must be installed for the Expressway to route these calls.
- 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
Explanation:
pod1.local domain as that is owned by the local system. Calls to any other domain would work.
NEW QUESTION 41
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 has the function as a neighbor zone in the Expressway. It creates a connection with another server.
- C. A transform changes an alias that matches certain criteria into another alias.
- D. A transform changes the audio codec when the call goes through the Expressway.
Answer: C
NEW QUESTION 42
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. Add an intermediate certificate to the Expressway-C that is signed by a certificate authority.
- B. Add a server certificate to the Expressway-C that is signed by a certificate authority.
- C. Configure the Expressway-C Traversal Client zone Peer 1 address with the fully qualified domain name of the Expressway-E.
- D. Configure the Expressway-C Traversal Client zone transport protocol with TCP.
Answer: A
NEW QUESTION 43
When deploying an Expressway Core and Expressway Edge cluster for mobile and remote access, which TLS verity subject name must be configured on the Expressway-E UC traversal zone?
- A. Webex CUSP Cluster Name
- B. Expressway-E Cluster Name
- C. Cisco Unified Communications Manager Publisher FQDN
- D. Expressway-C Cluster Name
Answer: B
NEW QUESTION 44
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. Cloud Node US-EAST
- B. Cloud Node US-WEST
- C. Video Mesh Cluster-2
- D. Both Cloud Node US-EAST and US-WEST
Answer: C
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/videomesh/cmgt_b_webex-vid
NEW QUESTION 45
Which two statements about Mobile and Remote Access certificate are true? (Choose two.)
- A. Expressway Core can use private CA signed certificate.
- B. The Jabber client can work with public or private CA signed certificate.
- C. Expressway Edge must use public CA signed certificate.
- D. Expressway must generate certificate signing request.
- E. You must upload the root certificates in the phone trust store.
Answer: A,D
NEW QUESTION 46
Refer to the exhibit.
Which description of the transformation is true?
- A. It converts [email protected]:<port> to [email protected]
- B. It converts [email protected]:<port> to [email protected]
- C. It changes [email protected]:<port> to [email protected]
- D. It changes all patterns that begin with [email protected]:<port> to [email protected]
Answer: A
NEW QUESTION 47
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. Cloud Node US-EAST
- B. Cloud Node US-WEST
- C. Video Mesh Cluster-2
- D. Both Cloud Node US-EAST and US-WEST
Answer: C
NEW QUESTION 48
Which zone is required on a B2B deployment between Expressway-C and Expressway-E?
- A. default zone
- B. traversal zone
- C. DNS zone
- D. neighbor zone
Answer: B
NEW QUESTION 49
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 and Expressway-E server certificate
- B. Cisco Unified Communications Manager server certificate
- C. Expressway-C server certificate
- D. C.Expressway-E server certificate
Answer: D
NEW QUESTION 50
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. Any
- B. Traversal Zone
- C. Neighbor Zone
- D. All
Answer: D
NEW QUESTION 51
A company is installing Cisco Collaboration infrastructure and one of the requirements is that they must be able to communicate with many external parties that are using H.323 and SIP. Internally they want to register the endpoints only on SIP.
Which functionality would describe the feature that needs to be enabled and where to achieve this?
- A. Transcoding in Expressway-C
- B. Interworking in Cisco Unified Communications Manager
- C. Transcoding in Cisco Unified Communications Manager
- D. Interworking in Expressway-C
Answer: D
NEW QUESTION 52
Refer to the exhibit.
What is the result of a transformation applied to alias 88514?
- A. [email protected]
- B. [email protected]
- C. 88513@ccnpcollab com
- D. [email protected]
Answer: A
NEW QUESTION 53
An organization with a domain name of example.com.
Which two SRV records are valid for a SIP and H.323 communication? (Choose two.)
- A. _sips._udp.example.com
- B. _h323ls._udp.example com
- C. _h323ls._tcp.example.com
- D. _sips._tcp.example.com
- E. _collab-edge._tls.example.com
Answer: B,D
NEW QUESTION 54
When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?
- A. SDP m-line
- B. SDP b-line
- C. SIP record route
- D. SDP c-line
Answer: D
Explanation:
Explanation
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-5/Cisco-Expressway-
NEW QUESTION 55
Which step is required when configuring Cisco Webex Hybrid Message Service?
- A. Add Expressway-C and Cisco United CM to the Cisco Webex Cloud.
- B. Add Cisco Unity Connection to Expressway-E.
- C. Register Expressway-C to Cisco Unified Communications Manager.
- D. Register Expressway-C Connector Hosts to the Cisco Webex Cloud.
Answer: D
NEW QUESTION 56 
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. Write a custom normalization script since the "vcs-interop" normalization script does not allow registrations
- B. Change the "Incoming Port" in the SIP Trunk Security Profile for the Expressway-C to not match SIP line registrations
- C. Enable autoregistration for the appropriate DN range on the Cisco UCM servers running the CallManager service
- D. Change the SIP profile on the SIP trunk for the Expressway-E to Standard SIP Profile for TelePresence Endpoint
Answer: B
NEW QUESTION 57
Refer to the exhibit.
Which two outbound connections should an administrator configure on the internal firewall? (Choose two.)
- A. XMPP: TCP 7400
- B. Media: UDP 36012 to 59999
- C. HTTPS: TCP 8443
- D. SIP: TCP 7001
- E. SIP TCP 5061
Answer: A,D
NEW QUESTION 58
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