[2025年04月] 問題集簡単概要300-820試験問題Fast2test
300-820トレーニング認証最新版をゲットCCNP Collaboration
質問 # 101
Which user management method uses the Webex Directory Connector to add and synchronize users to the Control Hub organization?
- A. Synchronize from "Add using People API".
- B. Synchronize from Active Directory.
- C. Synchronize from Okta.
- D. Synchronize from Azure AD.
正解：B
質問 # 102
Which two licenses are required for the Expressway B2B feature to work? (Choose two)
- A. Device Provisioning
- B. Traversal Server
- C. TURN Relays
- D. Advanced Networking
- E. Rich Media Sessions
正解：B、E
質問 # 103
Cisco Collaboration deployment has video endpoints that can do B2B calls over the internet, but they also can make audio calls through a gateway. This ability means that someone from the internet can make fraud calls through the system. Which action must an engineer take to set up the search rules for calls that are being headed to the PSTN gateway?
- A. Add registered devices only in the zone for the PSTN gateway.
- B. Avoid using any wild card in the source settings in the search rules.
- C. Ensure that only requests that are authenticated are allowed to make a PSTN call.
- D. Add registered devices only in the search rule for the PSTN gateway.
正解：B
質問 # 104
Refer to the exhibit. Which inbound connection should an administrator configure on the outside firewall?
- A. Media: UDP 36000 to 36011
- B. XMPP: TCP 5222
- C. SIP: TCP 5061
- D. HTTPS (tunneled over SSH between C and E): TCP 2222
正解：B
解説：
SIP UDP: 5060
SIP TCP: 5060
SIP TLS: 5061
XMPP TCP: 5222
RTP/RTCP: 36000-59999
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X12-
5/Cisco-Expressway-IP-Port-Usage-for-Firewall-Traversal-Deployment-Guide-X12-5.pdf
質問 # 105
Which two internal SIP endpoints behind a firewall place calls to external devices? (Choose two.)
- A. A Cisco Endpoint is configured with a publicly routable static NAT SIP address to advertise instead of is private IP address.
- B. An Expressway-E is used as a VPN server to allow remote SIP edge servers to connect calls
- C. An Expressway-C rewrites the SIP SDP to advertise its own IP address to the external party.
- D. An Expressway-C communicates directly with the remote party using the ICE protocol
- E. An Expressway-C communicates with the internal endpoint and forwards the media to and from an Expressway-E.
正解：B、E
質問 # 106
A Cisco Webex Hybrid Video Mesh Node can be installed in the DMZ and on the internal network.
Which statement is true?
- A. Webex Cloud supports either a DMZ-based Mesh Node for security or an internal-based Mesh Node for media control only.
- B. Installing a Video Mesh Node in the DMZ requires you to open TCP and UDP port 4444 in your internal firewall for full clustering functionality.
- C. Installing a Video Mesh Node in the DMZ requires the external firewall to allow UDP traffic from ANY port to the address of the Video Mesh Nodes via port 5004.
- D. Using internal Video Mesh Node also works due to Mobile and Remote Access setup for Webex Teams clients. A DMZ node is added for extra security.
正解：C
解説：
The external firewall will need to allow UDP traffic from ANY port to the address of the Video Mesh Nodes via port 5004, so that roaming Webex Teams endpoints can send media to the nodes. This is not a preferred approach.
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Collaboration/hybrid/12x/hybcvd/hms.html
質問 # 107
Refer to the exhibit. What is the result of a transformation applied to alias 88514?
- A. [email protected]
- B. [email protected]
- C. [email protected]
- D. 88513@ccnpcollab com
正解：C
解説：
The answer should be [email protected], since the regex considers anything after digit 8 (excludes 1-7), leaves the rest intact, and replaces the domain. So in short terms, it simply adds the domain after the DN.
質問 # 108
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 remains in the same zone.
- B. 13358 is replaced by 135, and then is sent to the traversal zone.
- C. 13358 is replaced by 135, and then is sent to the local zone.
- D. 13358 is sent directly to the traversal zone.
正解：D
質問 # 109
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
正解：B
質問 # 110
Which statement about the Cisco Webex hybrid service is true?
- A. Directory Connector must be deployed for OBTP to work with on-premises video devices.
- B. Directory Connector is required for Azure AD.
- C. Expressway Connector is required for an on-premises Exchange server.
- D. Hybrid Message service works only with Jabber cloud deployment.
正解：C
質問 # 111
With QoS enabled, which two statements about the Cisco Webex Video Mesh Node signaling and media traffic are true? (Choose two.)
- A. From VMN to Webex cloud, the destination UDP port 9000 is used for video traffic.
- B. From Webex cloud to VMN, the source UDP port 9000 is used for audio traffic.
- C. From VMN to Webex Teams clients, the source UDP port 5004 is used for video traffic.
- D. From VMN to CUCM SIP endpoints, the source UDP ports from 52500 to 62999 is used for audio traffic.
- E. From VMN to video endpoints, the destination UDP port 5004 is used for audio traffic.
正解：C、D
解説：
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/videomesh/cmgt_ b_webex-video-mesh-deployment-guide/cmgt_b_hybrid-media-deployment- guide_chapter_010.html#reference_CAE1A60E80AE6EC7BF96DAE7980D792D
質問 # 112
Which attribute in the SDP for a call is affected by the static NAT address configuration in an Expressway-E?
- A. bandwidth
- B. version
- C. connection
- D. name
正解：C
解説：
c-line shows the connection information, Media IP address.
質問 # 113
Refer to the exhibit. Logins and failing via mobile and remote access. How is this resolved?
- A. No Cisco UCM servers are configured in the Expressway-C. Servers must be added for CallManager and IM and Presence services.
- B. SIP is disabled on the Expressway-E. The SIP protocol must be enabled on the server.
- 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.
正解：A
質問 # 114
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 CLI of the Expressway only.
- C. It is allowed from the application GUI of the Expressway only.
- D. It is not supported on the application.
正解：D
解説：
Scheduling backups is not supported in the Expressway code.
質問 # 115
Which media encryption mode can be configured on an Expressway zone?
- A. Advanced Encryption Standard
- B. Triple Data Encryption Standard
- C. force unencrypted
- D. IPsec
正解：A
質問 # 116
When configuring a Cisco Expressway solution and need to design the dial plan with various rules for URIs and numbers coming through the device. To do so, it is important that some dial plan rules are applied in a certain order. When configuring the transform section, you must know the range of the priorities.
Which range is correct?
- A. any number in the dialog box
- B. any number between 1-65534
- C. any number between 1-128
- D. any number in the drop-down menu
正解：B
解説：
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/admin_guide/Cisco- Expressway-Administrator-Guide-X8-6.pdf
質問 # 117
Refer to the exhibit.
Which two numbers match the regular expression? (Choose two.)
- A. 0
- B. d209d165d200d224
- C. 1
- D. 2
- E. d20d16d20d22
正解：C、D
質問 # 118
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この試験は、Cisco Webex Teams、Cisco Unified Communications Manager（CUCM）、Cisco Expressway、およびCisco Meeting Server（CMS）などのさまざまなコラボレーション技術について確固たる理解を持っていることが必要です。また、候補者は、クラウド環境でこれらの技術を展開、設定、およびトラブルシューティングする経験を持っていることが期待されています。
Cisco 300-820試験は、90分で回答する必要がある60〜70の質問から構成されています。この試験は、Cisco Webex Hybrid Services、Cisco Unified IMおよびPresence、Cisco Expressway、およびCisco Cloud Messagingなどのさまざまな領域での候補者の知識をテストします。この試験はコンピュータベースであり、世界中の任意のPearson VUEテストセンターで受験することができます。
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