Implementing Cisco Collaboration Cloud and Edge Solutions

Here you have the best Cisco 300-820 practice exam questions

  • You have 201 total questions across 41 pages (5 per page)
  • These questions were last updated on February 26, 2026
  • This site is not affiliated with or endorsed by Cisco.
Question 1 of 201
Which complication does a NAT introduce in SDP for a SIP call?
Answer

Suggested Answer

The suggested answer is C.

In the context of SIP calls, NAT (Network Address Translation) can cause issues related to the IP address specified in the connection data field within the SDP (Session Description Protocol). If the client is behind a NAT, the IP address in the SDP might be a private, unrouteable internal address. This means that the receiving client will not be able to directly route packets back to the originating client, leading to communication failures.

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Question 2 of 201
A company already has a Cisco Unified Communications Manager for internal audio and video traffic, but it requires video communication with external partners and customers. It is important to ensure security for the deployment and the connectivity.
What must be set up to enable this requirement?
Answer

Suggested Answer

The suggested answer is C.

To enable secure video communication with external partners and customers while ensuring security for the deployment and connectivity, Cisco Expressway-C and Cisco Expressway-E are required. Cisco Expressway-C is deployed inside the corporate network and Cisco Expressway-E is deployed in the DMZ (Demilitarized Zone). This setup allows for secure traversal of firewalls and NAT (Network Address Translation) devices, thus ensuring both connectivity and security for external video communication with the Cisco Unified Communications Manager.

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Question 3 of 201
When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?
Answer

Suggested Answer

The suggested answer is C.

When an Expressway-E is configured for static NAT, the Session Description Protocol (SDP) c-line is modified to reflect the NAT address. The c-line specifies the connection information, including the IP address where media should be sent. If a device is behind a NAT, the c-line will be updated to show the public NAT address to ensure proper routing of media packets.

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Question 4 of 201
A company is installing Cisco Collaboration infrastructure and one of the requirements is that they must be able to communicate with many external parties that are using H.323 and SIP. Internally they want to register the endpoints only on SIP.
Which functionality would describe the feature that needs to be enabled and where to achieve this?
Answer

Suggested Answer

The suggested answer is A.

Interworking is the required functionality to enable communication between SIP and H.323 protocols. The company wants to register endpoints internally using SIP and communicate with external parties using SIP and H.323. Expressway-C is designed to handle interworking between SIP and H.323, facilitating communication between these different protocols. Therefore, enabling interworking in Expressway-C would be the correct approach.

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Question 5 of 201
What is a key configuration requirement for Hybrid Message Service High Availability deployment with multiple IM and Presence clusters?
Answer

Suggested Answer

The suggested answer is A.

For a Hybrid Message Service High Availability deployment with multiple IM and Presence clusters, it is essential to have the Intercluster Sync Agent working across all IM and Presence clusters. This configuration ensures that data is synchronized properly among the clusters, which is critical for maintaining high availability and consistent service.

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About the Cisco 300-820 Certification Exam

About the Exam

The Cisco 300-820 (Implementing Cisco Collaboration Cloud and Edge Solutions) validates your knowledge and skills. Passing demonstrates proficiency and can boost your career prospects in the field.

How to Prepare

Work through all 201 practice questions across 41 pages. Focus on understanding the reasoning behind each answer rather than memorizing responses to be ready for any variation on the real exam.

Why Practice Exams?

Practice exams help you familiarize yourself with the question format, manage your time, and reduce anxiety on the test day. Our 300-820 questions are regularly updated to reflect the latest exam objectives.