[2022年03月最新リリース] 合格できる300-820試験にはリアル問題とアンサー
合格できる300-820レビューガイド、頼もしい300-820テストエンジン
Cisco 300-820 認定試験の出題範囲：
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質問 51
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 search rule must be changed to continue on match
- C. The underlying DNS issue must be resolved
- D. The existing zone using ID 7 must be deleted
正解: B
質問 52
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. Interworking in Expressway-C
- B. Transcoding in Cisco Unified Communications Manager
- C. Interworking in Cisco Unified Communications Manager
- D. Transcoding in Expressway-C
正解: B
質問 53
What is a key configuration requirement for Hybrid Message Service High Availability deployment with multiple IM and Presence clusters?
- A. Your IM and Presence Service clusters must have Multiple Device Messaging disabled.
- B. You must have the Intercluster Sync Agent working across your IM and Presence clusters.
- C. AXL service should be activated only on the publisher of each IM and Presence cluster.
- D. You must have the Intercluster Lookup Service working across all of your IM and Presence clusters.
正解: B
解説:
Explanation
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/spark/hybridservices/messageservice
質問 54
Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?
- A. _cisco-expwy._tls.<domain>
- B. _cisco-mra._tls.<domain>
- C. _collab-edge._tls.<domain>
- D. _cisco-uds._tcp.<domain>
正解: D
質問 55
Refer to the exhibit.
Which two outbound connections should an administrator configure on the internal firewall? (Choose two.)
- A. HTTPS: TCP 8443
- B. XMPP: TCP 7400
- C. SIP: TCP 7001
- D. Media: UDP 36012 to 59999
- E. SIP TCP 5061
正解: B,C
質問 56
In a Mobile and Remote Access deployment, where must communications be encrypted with TLS?
- A. Cisco Expressway-E and endpoints outside the enterprise
- B. Cisco Expressway-C, Cisco Expressway-E, and endpoints outside the enterprise
- C. Cisco Expressway-C, Cisco Unified Communications Manager, and IM&P
- D. Cisco Expressway-C, Cisco Expressway-E, and Cisco Unified Communications Manager
正解: C
質問 57
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 replaced by 135 and remains in the same zone.
- D. 13358 is sent directly to the traversal zone.
正解: D
質問 58
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 _cisco-uds SRV record has been configured.
- B. Ensure that the credential has been entered correctly.
- 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.
正解: B
質問 59 
Refer to the exhibit. Which two numbers match the regular expression? (Choose two.)
- A. 0
- B. d209d165d200d224
- C. 1
- D. d20d16d20d22
- E. 2
正解: A,E
質問 60
When determining why Mobile and Remote Access to Cisco TelePresence equipment does not work anymore for an organization. There are several administrators and configuration changes could have happened without anyone knowing. Internal communication seems to be working, but no external system can register or call anywhere. Gathering symptoms, you also discover that no internal systems can call out either.
What is TraversalZone missing that causes this issue?
- A. pipe to the DefaultZone
- B. SIP trunk to the DefaultZone
- C. route pattern to the DefaultZone
- D. link to the DefaultZone
正解: D
質問 61 
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 domain of SIP endpoint A to cisco.com.
- B. Change the interworking mode to On.
- C. Disable SIP in the external zone.
- D. Create a presearch transform.
正解: B
質問 62
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 _cisco-uds SRV record has been configured.
- B. Ensure that the credential has been entered correctly.
- 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.
正解: B
質問 63
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 _cisco-uds SRV record has been configured.
- B. Ensure that the credential has been entered correctly.
- 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.
正解: B
質問 64
Which step is taken when configuring a Cisco Expressway solution?
- A. Disable H.323 mode on the Expressway-E.
- B. Enable H.323 H.460.19 demultiplexing mode on the Expressway-C.
- C. Configure the Expressway-E by using a non-traversal server zone.
- D. Enable static NAT on the Expressway-E only.
正解: D
質問 65
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 the priority of the SRV record for cisco-uds.
- B. Change the collab-edge record to point to 5061.
- C. Change cisco-uds to point to the Expressway-E FQDN.
- D. Remove the cisco-uds SRV record for the external DNS.
正解: D
質問 66
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 local 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 traversal zone.
正解: D
質問 67
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. All
- C. Neighbor Zone
- D. Traversal Zone
正解: A
質問 68
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. The destination port for Expressway-E is set to 7400 instead of 8443 on the Expressway-C.
- B. Expressway-E is listening on the wrong IP interface.
- C. The XCP Service is not activated on Expressway-E.
- D. Rich Media Session licenses are not activated on Expressway-E.
正解: B
解説:
Explanation
https://www.cisco.com/c/en/us/support/docs/unified-communications/expressway/118798-technote-cucm-00.htm
質問 69
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. Neighbor Zone
- C. Traversal Zone
- D. All
正解: D
質問 70
What is the Cisco-recommended key length in bits for a Cisco Expressway certificate?
- A. 0
- B. 1
- C. 2
- D. 3
正解: B
質問 71
Refer to the exhibit.
Which two numbers match the regular expression? (Choose two.)
- A. 0
- B. d209d165d200d224
- C. 1
- D. d20d16d20d22
- E. 2
正解: A,E
質問 72
Which statement about scheduling Expressway backups is true?
- A. It is allowed from the application GUI of the Expressway only.
- B. It is not supported on the application.
- C. It is allowed from the application CLI of the Expressway only.
- D. It is allowed from the application CLI and GUI of the Expressway.
正解: D
質問 73
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]
正解: A
質問 74
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