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Cisco 300-820 Exam Topics:

Section
Weight
Objectives

Key Concepts
25%
- Describe the complications of NAT in a Collaboration environment
- Describe the purpose of ICE, TURN and STUN
- Describe Expressway media traversal
- Describe protocol interworking on the Expressway

• SIP < > H.323
• IPv4 and IPv6

- Describe Expressway Licensing

• Option keys
• Release key
• License consumption

- Describe SIP media encryption mode

• Auto
• Force encrypted
• Force unencrypted
• Best effort

- Describe Expressway Core dial plan elements

• Transforms
• Search rules
• Zones
• Regular expressions
• Pipes and links

- Describe key Expressway settings

• DNS
• Network interfaces
• Certificates
• QoS
• Clustering
• Network firewall rules

- Describe Expressway backup and restore procedure (stand alone and cluster)

Initial Expressway Configurations
25%
- Configure key Expressway settings

• DNS
• Network interfaces
• Certificates
• QoS
• Clustering
• Network firewall rules

- Configure Expressway Core dial plan elements

• Transforms
• Search rules
• Zones
• Regular expressions
• Pipes and links

- Configure toll fraud prevention on Expressway series (no custom CPL scripts)
- Configure a Business to Business (B2B) collaboration solution

• DNS records (focus on Microsoft DNS)
• Certificates (focus on Microsoft CA)
• Traversal Zones
• Neighbor Zones
• Transforms
• Search rules
• SIP trunk integration with Cisco Unified Communications Manager

- Troubleshoot a Business to Business (B2B) collaboration solution

• DNS records (focus on Microsoft DNS)
• Certificates (focus on Microsoft CA)
• Traversal Zones
• Neighbor Zones
• Transforms
• Search rules
• SIP trunk integration with Cisco Unified Communications Manager

Mobile and Remote Access
25%
- Configure a Mobile and Remote Access (MRA) solution

• DNS records types (not platform-specific)
• Certificates (not platform specific, covers Unified Communications Manager, IM&P, Expressways, Unity Connection)
• Unified Communications traversal zones
• Unified Communications configuration on Expressway
• HTTP allow list
• SIP trunk security profile on Cisco Unified Communications Manager

- Troubleshoot a Mobile and Remote Access (MRA) solution

• DNS records (focus on Microsoft DNS)
• Certificates (focus on Microsoft CA, covers Unified Communications Manager, IM&P, Expressways, Unity Connection)
• Unified Communications traversal zones
• Unified Communications configuration on Expressway
• HTTP allow list
• SIP trunk security profile on Cisco Unified Communications Manager

Cisco WebEx Technologies
25%
- Describe the signaling and media flows used in a Cisco WebEx Video Mesh deployment
- Configure WebEx Hybrid Services/Connector

• Calendar Service (Office 365, Microsoft Exchange, One Button to Push)
• Message Service (Deployment requirements; expressway requirements, certificates, Call Manager pre-requisites, IM&P prerequisites, deployment models)
• Directory Services (Deployment requirements; deployment models, infrastructure requirements, active directory configuration, synchronization, WebEx user service assignment)
• Video Mesh (Deployment requirements including; bandwidth, clustering, endpoint support, video call capacity, ports and protocols, deployment models)

- Describe Cisco Jabber for Cloud and Hybrid deployments with Cisco WebEx Messenger

 

Cisco 300-820 Exam is targeted towards professionals who are involved in designing, deploying, and managing collaboration solutions for their organizations. 300-820 exam covers a wide range of topics, including configuring and troubleshooting Cisco Unified Communications Manager, implementing Cisco Expressway, and integrating Cisco Webex with other collaboration solutions.

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Cisco 300-820 Certification Exam is intended for IT professionals who have a minimum of three years of experience in implementing collaboration solutions. 300-820 exam is also suitable for professionals who are interested in enhancing their knowledge and skills in this field. Implementing Cisco Collaboration Cloud and Edge Solutions certification is a valuable credential for professionals who are seeking to advance their careers in the field of collaboration solutions.

Cisco Implementing Cisco Collaboration Cloud and Edge Solutions Sample Questions (Q53-Q58):

NEW QUESTION # 53
Refer to the exhibit. A new neighbor zone is added for a new Cisco Meeting Server, but the zone is showing a SIP status of failed from the time the zone it was created.
What should be done to resolve this issue?

• A. The existing zone using ID 7 must be deleted
• B. The underlying DNS issue must be resolved
• C. The search rule must be changed to continue on match
• D. More bandwidth must be added to the appropriate pipes

Answer: B

 

NEW QUESTION # 54
An administrator installs a new webserver (server1.example.com - 10.1.1.90) for storing Cisco Jabber update files to the network, but all Mobile and Remote Access registered clients still run the old Jabber software version, and the update fails. Which configuration task on an Expressway server solves the Jabber software update issue?

• A. Add a rule with the server IP address 10.1.1.90 in the URL to the inbound HTTP allow list because server names and FQDNs are not supported.
• B. Add a rule with the URL http://server1.example.com:80/ to the inbound HTTP allow list manually to allow access to the new web server.
• C. Run an IM and Presence server discovery process on Expressway-C to add the new web server to the inbound HTTP allow list automatically.
• D. Add a rule with the URL http://server1.example.com:80/ to the outbound HTTP allow list manually to allow pushing the new software to the clients.

Answer: B

 

NEW QUESTION # 55
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. service discovery issues
• B. incorrect login credentials
• C. down Cisco Unified Communications Manager server
• D. XMPP bind failures

Answer: D

Explanation:
Explanation
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-5/Mobile-Remote-Ac

 

NEW QUESTION # 56
Refer to the exhibit.

Refer to the exhibit. When a user tries to sign in to the Cisco Jabber client through Mobile and Remote Access, they receive this error message: "Cannot communicate with the server." The external DNS server is configured with the SRV records listed in the exhibit.
What is the cause of the issue?

• A. The collab-edge DNS record must be added to the DNS server and the _cisco-uds DNS record must be removed.
• B. The _sips DNS record must target expE-pub.cll-collab.internal and the _cisco-uds DNS record must be removed.
• C. A Cisco CSF device must be configured in UC for the user and the _cisco-uds DNS record must be removed.
• D. The HTTP allow list is not allowing communication with the Instant Message and Presence server.

Answer: C

 

NEW QUESTION # 57
Refer to the exhibit.

In an environment SIP devices are registered to CUCM and H.323 devices to VCS. What would be required to enable these calls to setup correctly?

• A. Create a presearch transform.
• B. Change the domain of SIP endpoint A to cisco.com.
• C. Disable SIP in the external zone.
• D. Change the interworking mode to On.

Answer: D

 

NEW QUESTION # 58
......

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