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Cisco 300-820 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: APIs and Programmability	10%	- 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 2: Collaboration Cloud Technologies	25%	- Expressway configuration and integration 1. Dial plan, B2B communication, MRA implementation 2. Network, certificates, clustering, QoS setup - Key concepts and architecture 1. NAT, ICE, TURN, STUN 2. Expressway media traversal and protocol interworking 3. Licensing and backup/restore procedures
Topic 3: Hybrid and Migration to the Cloud	10%	- 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
Topic 4: Suite and Device Configuration	25%	- Webex Meetings and Messaging setup 1. Deployment models and feature configuration 2. Endpoint registration and provisioning - Webex Calling configuration 1. Locations, numbers, dial plans, permissions 2. Trunks, route groups, translation patterns
Topic 5: Security	10%	- Security architecture and services 1. Identity, key management, compliance 2. Encryption, authentication, access control - Security configuration 1. Trunk and media security policies 2. Endpoint, meeting, administration security
Topic 6: Cloud Management, Suite and Devices Administration	20%	- Monitoring and troubleshooting 1. Endpoint and service health monitoring 2. Call routing, meetings, messages issues - Control Hub administration 1. User, organization, site management 2. Domain setup, security settings, integrations

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Cisco Implementing Cisco Collaboration Hybrid and Cloud Technologies (CLHCT) v2.0 Sample Questions (Q143-Q148):

NEW QUESTION # 143
In Cisco Expressway, which information from an incoming search request does the pre-search transform configuration allow to be modified?

A. Source IP address
B. CUD
C. calling party
D. called address

Answer: D

NEW QUESTION # 144
Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?

A. _cisco-uds._tcp.<domain>
B. _cisco-mra._tls.<domain>
C. _collab-edge._tls.<domain>
D. _cisco-expwy._tls.<domain>

Answer: C

Explanation:
_cisco-uds is used for internal communication, while _collab-edge is used for external clients.

NEW QUESTION # 145
What is a description of an Interactive Connectivity Establishment?

A. It is used to find the best media path between network elements in traversal calls.
B. It allows Mobile and Remote Access endpoints to connect video calls signaling peer-to-peer.
C. It allows calling external endpoints with reduced overhead under VPN connections.
D. It is used by B2BUA to keep the firewall ports opened for inbound/outbound calls.

Answer: A

Explanation:
Interactive Connectivity Establishment (ICE) is a protocol used to find the best media path between network elements in traversal calls. It does this by first discovering all possible paths between the two endpoints, and then selecting the path with the lowest latency and jitter. ICE is used by many different applications, including WebRTC, SIP, and H.323.

NEW QUESTION # 146
In which mode does the Cisco Expressway act as a SIP-H.323 gateway only if one or more of the endpoints are locally registered?

A. registered only
B. on
C. off
D. gateway only

Answer: A

NEW QUESTION # 147
During the deployment of a Cisco Webex Video Mesh, where do on-premises SIP endpoints send signaling?

A. to the cloud
B. On-premises endpoints cannot participate in Cisco Webex Video Mesh
C. to the switching services
D. to the call control environment (Unified CM or Expressway)

Answer: D

NEW QUESTION # 148
......

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