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Cisco 300-820 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: APIs and Programmability	10%	- Automation and integration 1. Automation use cases 2. Cisco Webex APIs 3. Programmability concepts 4. REST API fundamentals
Topic 2: Suite and Devices Management and Administration	30%	- Administration and troubleshooting 1. Troubleshoot hybrid deployments 2. Manage Control Hub services 3. Monitor collaboration services 4. Manage collaboration devices
Topic 3: Suite and Devices Configuration	25%	- Configuration tasks 1. Configure Single Sign-On (SSO) 2. Configure directory synchronization 3. Configure Hybrid Calendar Service using cloud mail services 4. Configure Control Hub calling features such as Hot Desking and Auto Attendant 5. Configure site survivability 6. Configure registration-based local gateways 7. Configure certificate-based local gateways
Topic 4: Security	10%	- Security implementation 1. Authentication and authorization 2. Certificates and trust 3. Secure collaboration communications
Topic 5: Collaboration Cloud Technologies	15%	- Cloud architecture and services 1. Webex cloud architecture 2. Cloud connectivity models 3. Hybrid service concepts 4. Identity and authentication
Topic 6: Cloud Management	10%	- Cloud administration 1. Manage users and organizations 2. Troubleshoot cloud user management

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Cisco Implementing Cisco Collaboration Hybrid and Cloud Technologies (CLHCT) v2.0 Sample Questions (Q58-Q63):

NEW QUESTION # 58
Which part of a hybrid cloud-based deployment with Cisco Webex Messenger Service is used for meeting capabilities?

A. Cisco Webex Meeting Center 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 Unified CM is always used for meeting capabilities.

Answer: C

NEW QUESTION # 59
Which two types of information does Cisco Expressway back up? (Choose two.)

A. log files
B. call records
C. security certificates
D. IP addresses
E. current call states

Answer: B,D

NEW QUESTION # 60
After enabling Media Optimization for Webex Calling, a company begins experiencing intermittent one-way audio on calls between Webex App users and PSTN endpoints. Internal calls between Webex users work normally, and SIP signaling completes successfully without errors. Call flow traces show that the Webex App attempts to create a direct media path to the Local Gateway, but the negotiation frequently fails, which causes an inconsistent fallback to relay media. This behavior mirrors the audio issues reported by users. Which area must be examined first to help identify the root cause of the one-way audio?

A. Examine Webex App diagnostics for signs of media-engine adaptation failures, including jitter buffering anomalies or RTP flow suppression during network transitions.
B. Review firewall handling of ICE-related traffic to ensure that required STUN/TURN/UDP flows and candidate exchanges are not being blocked or altered during media negotiation.
C. Inspect SIP session refresh and keepalive intervals on the Local Gateway to verify that they align with recommended cloud signaling timers during optimized media calls.
D. Evaluate the codec negotiation path in the Webex Calling region settings to confirm that all participants support the same media capabilities for optimized call.

Answer: B

Explanation:
Webex Calling Media Optimization relies on ICE negotiation to establish the best media path, including direct media when possible. If calls to PSTN through the Local Gateway intermittently fail to establish the direct path and fallback is inconsistent, the first area to check is whether firewalls or NAT devices are blocking or modifying STUN, TURN, UDP media flows, or ICE candidate exchanges required for successful media negotiation.

NEW QUESTION # 61
Which two statements about Expressway-C / Expressway-E Firewall Traversal are correct?
(Choose two.)

A. SIP or H.323 "fixup" ALG or awareness functionality must be enabled on the NAT firewalls.
B. SIP or H.323 "fixup" ALG or awareness functionality must be enabled on the NAT firewall between the DMZ and the Internet only.
C. SIP or H.323 "fixup" ALG or awareness functionality must be disabled on the NAT firewalls.
D. The communications between Expressway-C and Expressway-E are always initiated from the Expressway-E to the Expressway-C.
E. The communications between Expressway-C and Expressway-E are always initiated from the Expressway-C to the Expressway-E.

Answer: C,E

NEW QUESTION # 62
Refer to the exhibit. While troubleshooting Cisco Jabber login issues, there are some error messages.

Why is the Jabber client unable to sign in?

A. down Cisco Unified Communications Manager server
B. service discovery issues
C. XMPP bind failures
D. incorrect login credentials

Answer: C

Explanation:
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X12-
7/exwy_b_mra-deployment/exwy_m_mra-troubleshooting.pdf

NEW QUESTION # 63
......

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