300-820難易度 & 300-820勉強の資料

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Cisco 300-820 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Collaboration Cloud Technologies25%- Expressway configuration and integration
  • 1. Network, certificates, clustering, QoS setup
  • 2. Dial plan, B2B communication, MRA implementation
- Key concepts and architecture
  • 1. NAT, ICE, TURN, STUN
  • 2. Licensing and backup/restore procedures
  • 3. Expressway media traversal and protocol interworking
Topic 2: APIs and Programmability10%- Webex APIs
  • 1. Events and integration APIs
  • 2. Messaging, Meeting, Calling, People APIs
- Development tools and portals
  • 1. App Hub, Developer Portal, Room OS Portal
  • 2. Device macros and automation
Topic 3: Security10%- Security configuration
  • 1. Trunk and media security policies
  • 2. Endpoint, meeting, administration security
- Security architecture and services
  • 1. Identity, key management, compliance
  • 2. Encryption, authentication, access control
Topic 4: Cloud Management, Suite and Devices Administration20%- Control Hub administration
  • 1. User, organization, site management
  • 2. Domain setup, security settings, integrations
- Monitoring and troubleshooting
  • 1. Call routing, meetings, messages issues
  • 2. Endpoint and service health monitoring
Topic 5: Suite and Device Configuration25%- Webex Calling configuration
  • 1. Trunks, route groups, translation patterns
  • 2. Locations, numbers, dial plans, permissions
- Webex Meetings and Messaging setup
  • 1. Endpoint registration and provisioning
  • 2. Deployment models and feature configuration
Topic 6: Hybrid and Migration to the Cloud10%- Hybrid services implementation
  • 1. Calendar, directory, message connectors
  • 2. Cloud Connected UC and migration tools
- Deployment models and integration
  • 1. Video Mesh, hybrid data security
  • 2. On-premises to cloud migration

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多くの人々は高い難度のCisco認証300-820試験に合格するのは専門の知識が必要だと思います。それは確かにそうですが、その知識を身につけることは難しくないとといわれています。Cisco業界ではさらに強くなるために強い専門知識が必要です。

Cisco Implementing Cisco Collaboration Hybrid and Cloud Technologies (CLHCT) v2.0 認定 300-820 試験問題 (Q217-Q222):

質問 # 217
Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?

正解：D


質問 # 218
Refer to the exhibit. Cisco Unified Communications Manager routes the call via the Webex Meetings route list and route group to the Video Mesh cluster Node#1 in the Video Mesh cluster is hosting the meeting and has reached full capacity, but other nodes in the cluster still have spare capacity.

What happens to the participant's call?

正解：C

解説：
If the node hosting the meeting reaches full capacity, another node in the cluster will be used and an intra-cluster cascade will be formed. (The intra-cluster cascade routes from node to node, not via Webex.)
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Collaboration/hybrid/12x/hybcvd/hms.html


質問 # 219
What allows endpoints behind a NAT to discover the paths through which they will pass media?

正解：D

解説：
https://www.cisco.com/c/en/us/td/docs/solutions/PA/ICE/icepa125.html


質問 # 220
A company identifies a fraudulent toil situation. An engineer reviews the Cisco UCM call detail records and discovers that fraudulent calls originate from a Cisco Expressway-C server and are then routed to a 10-digit PSTN number. What must be configured to limit incoming Expressway calls to the internal Cisco UCM range of extensions 5XXXX?

正解：C

解説：
To prevent toll fraud and restrict what calls Cisco UCM will accept from Expressway, the control must be enforced on Cisco UCM, not on Expressway search or call policy rules. By configuring a Calling Search Space (CSS) on the UCM SIP trunk from Expressway that includes only the partition containing internal extensions (5XXXX), UCM will reject any calls from Expressway attempting to reach PSTN or other unauthorized destinations. This is the correct and recommended method to limit inbound Expressway calls to a specific internal extension range and stop fraudulent PSTN routing.


質問 # 221
Which configuration in a local gateway registered to Webex is required so that SRV queries are formatted as Secure SIP for the access SBC?

正解：D

解説：
The url sips configuration makes the Local Gateway format DNS SRV queries for Secure SIP, allowing it to resolve the access SBC using the secure SIP service records required for TLS- based signaling.


質問 # 222
......

Cisco高品質で、高い合格率とヒット率を高めることができる300-820のImplementing Cisco Collaboration Hybrid and Cloud Technologies (CLHCT) v2.0試験トレントを提供します。 当社の合格率は99％であるため、当社の製品を購入し、300-820試験の教材によってもたらされるメリットを享受することができます。 当社の製品は効率的で、短時間でImplementing Cisco Collaboration Hybrid and Cloud Technologies (CLHCT) v2.0ガイド急流を習得し、エネルギーを節約するのに役立ちます。 当社が提供する製品は専門家によって編集され、Xhs1991深い経験を後押しする専門家によって承認されています。 シラバスの変更および理論と実践の最新の開発状況に応じて改訂および更新されます。

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