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Cisco 300-820 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Security	10%	- Security implementation 1. Authentication and authorization 2. Secure collaboration communications 3. Certificates and trust
Topic 2: Collaboration Cloud Technologies	15%	- Cloud architecture and services 1. Identity and authentication 2. Cloud connectivity models 3. Webex cloud architecture 4. Hybrid service concepts
Topic 3: APIs and Programmability	10%	- Automation and integration 1. REST API fundamentals 2. Cisco Webex APIs 3. Programmability concepts 4. Automation use cases
Topic 4: Suite and Devices Management and Administration	30%	- Administration and troubleshooting 1. Troubleshoot hybrid deployments 2. Monitor collaboration services 3. Manage Control Hub services 4. Manage collaboration devices
Topic 5: Suite and Devices Configuration	25%	- Configuration tasks 1. Configure Single Sign-On (SSO) 2. Configure registration-based local gateways 3. Configure directory synchronization 4. Configure Hybrid Calendar Service using cloud mail services 5. Configure certificate-based local gateways 6. Configure Control Hub calling features such as Hot Desking and Auto Attendant 7. Configure site survivability
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 (Q156-Q161):

NEW QUESTION # 156
You must install an Expressway Edge server pair to enable mobile and remote access for a customer network. Which two requirements are used to install an MRA solution successfully?
(Choose two.)

A. Configure your firewalls to allow traffic from Expressway-Core to Expressway-Edge servers and to allow traffic from internet hosts to Expressway-Edge servers.
You do not need to configure firewall rules for traffic from Expressway-Edge to Expressway Core servers.
B. You can deploy Edge servers with multiple network interfaces or with a single network interface.
In both scenarios, you must enable NAT for the Internet-facing interface if you are using private Ip addresses.
C. Make sure that Expressway-Edge and Expressway-Core servers have their server certificates signed by the same certification authority and the CA certificate is uploaded to the trusted CA store otherwise the Traversal zone will not work.
D. Configure DNS SRV records according. Make sure that you can resolve DNS SRV record_collab- edge_tls.yourdomain.com outside your company network.
Make sure that you cannot resolve it inside your company network.

Answer: C,D

NEW QUESTION # 157
Refer to the exhibit.

Refer to the exhibit. A Cisco UCM cluster in mixed mode is integrated with Cisco Expressway-C for Mobile and Remote Access endpoint registration. TLS verify mode is enabled and self-signed certificates with the same common name for Cisco Tomcat and Cisco Call Manager are uploaded to Expressway-C. A Cisco Jabber client fails to register using secure SIP. Which two configurations are the cause of the issue? (Choose two.)

A. The Call Manager certificate is causing a conflict.
B. The incorrect secure device profile was applied to the Jabber client.
C. The Jabber client cannot connect to its associated phone device by using Cisco Computer Telephony Integration.
D. The Expressway-C does not allow two self-signed certificates with the same CN to be trusted.
E. The Tomcat certificate has the incorrect FQDN for the Cisco UCM server.

Answer: A,D

NEW QUESTION # 158
An engineer learns from an end user that calls from outside the company are not being received.
Calls are being made to other businesses outside of the company on video using URL addresses.
The change management log shows no changes in the configuration of the collaboration solutions. The engineer examines the endpoint, which seems to be registered to the Cisco UCM, and the SIP trunk between the Cisco UCM and sees that the Expressway is also up. In addition, the traversal link shows no errors between the Expressways. Which action must the engineer take to troubleshoot this issue?

A. On the Expressway-E, check the NTP settings to ensure that TLS will be able to terminate. If the clock is out of sync, incoming calls from other working systems would work bur not outgoing calls from the company.
B. On the Cisco UCM, run the Real-Time Monitoring Tool to see if any incoming calls fail.
C. On the Expressway-E, run diagnostic logging under maintenance to see if any requests reach the system.
D. On the Expressway-C, run a network log under administrative tools to see if any requests reach the system.

Answer: C

NEW QUESTION # 159
Refer to the exhibit.

Which inbound connection should an administrator configure on the outside firewall?

A. HTTPS (tunneled over SSH between C and E): TCP 2222
B. Media: UDP 36000 to 36011
C. XMPP TCP 5222
D. SIP TCP 5061

Answer: B

NEW QUESTION # 160
Which two internal SIP endpoints behind a firewall place calls to external devices? (Choose two.)

A. An Expressway-C communicates directly with the remote party using the ICE protocol
B. An Expressway-C rewrites the SIP SDP to advertise its own IP address to the external party.
C. An Expressway-C communicates with the internal endpoint and forwards the media to and from an Expressway-E.
D. A Cisco Endpoint is configured with a publicly routable static NAT SIP address to advertise instead of is private IP address.
E. An Expressway-E is used as a VPN server to allow remote SIP edge servers to connect calls

Answer: C,E

NEW QUESTION # 161
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