Guide (New 2024) Actual Cisco 300-820 Exam Questions [Q47-Q62]

Guide (New 2024) Actual Cisco 300-820 Exam Questions

300-820 Exam Dumps Pass with Updated 2024 Certified Exam Questions

Best Study Guides for 300-820 Exam

• David J. Bateman’s Configuring Cisco Unified Communications Manager and Unity Connection: A Step-by-Step Guide (Amazon)

  The book is created to provide you with an in-depth analysis of two remarkable Cisco systems: Unified Communications Manager and Unity Connection. With a detailed summary of the processes on how to design, configure, and manage both Cisco voice messaging and call processing, you get to maximize your skills and become well-rounded with the demands of the industry. In addition, there are lessons covering the procedures that administrators, integrators, and other professionals working with collaboration solutions should be aware of.

• Brett Hall and Nik Smith’s Practical Cisco Unified Communications Security (Amazon)

  Authored by industry experts, the book is a pivotal tool in mastering the core areas of Cisco UC system security. This material further addresses the fundamental attributes of how to effectively protect environments that aid in supporting various types like meetings, messaging, video, and voice. Likewise, it zooms in different real-time collaboration functions that are grounded on either mobile with remote access or mobile devices on BYOD initiatives.

  For a quick reference of the content, this begins with the impact of guarding your workforce through safety techniques and basic physical security features. Once you understand its importance, it’s easy to take necessary countermeasures to keep Cisco Unified CM, Cisco Meeting Server, and Cisco Unity Connection secured and functional. Other essential subjects that are accounted for are Session Border Controllers, as well as UC services, resources, and applications.

• Official exam guide

  Before you begin with the detailed training, you have to check the complete list of topics. All the relevant areas are recorded on the official site and can be downloaded at your own convenience. This PDF file breaks down the four major domains of the Cisco 300-820 exam. Each of these holds 25% of the total syllabus. This means every section is equally substantial, hence the need to be competent in all divisions.

• David Schulz’s Cisco Unity Connection, 1st Edition (Amazon)

  Though this book was already released years ago, most of its contents are still relevant to today’s Cisco Unity Connection solution. Make use of its thorough collection of concepts and techniques to efficiently master the crucial tasks involved in handling Cisco Unity Connection operations. These include planning, implementing, and maintaining voice messaging systems. Furthermore, the author delivers a more realistic approach in understanding the system lifecycle and that is by giving an extensive explanation, together with some practical examples, case studies, and industry set solutions.

NO.47 Which step is required when configuring cloud and hybrid deployments for Cisco Jabber?

 Add the Jabber user to Cisco Unity Connection.

 Add the Jabber user to Expressway-E.

 Add the Jabber user to Expressway-C.

 Add Jabber Users to the Cisco Webex Administration Tool.

NO.48 With QoS enabled, which two statements about the Cisco Webex Video Mesh Node signaling and media traffic are true? (Choose two.)

 From VMN to CUCM SIP endpoints, the source UDP ports from 52500 to 62999 is used for audio traffic.

 From VMN to Webex Teams clients, the source UDP port 5004 is used for video traffic.

 From Webex cloud to VMN, the source UDP port 9000 is used for audio traffic.

 From VMN to video endpoints, the destination UDP port 5004 is used for audio traffic.

 From VMN to Webex cloud, the destination UDP port 9000 is used for video traffic.

NO.49 How are Cisco Webex Video Mesh deployments supported?

 Video Mesh Dual NIC are supported in demilitarized deployments.

 Mixed Single NIC and Dual NIC are supported in the same data center deployments.

 Clustering Video Mesh Nodes over the WAN are supported if Round Trip Time is low.

 IPv6 and IPv4 deployments are supported for Video Mesh clusters.

NO.50 Which step is taken when configuring a Cisco Expressway solution?

 Configure the Expressway-E by using a non-traversal server zone.

 Enable static NAT on the Expressway-E only.

 Disable H.323 mode on the Expressway-E.

 Enable H.323 H.460.19 demultiplexing mode on the Expressway-C.

Explanation

NO.51 Cisco Collaboration endpoints are exchanging encrypted signaling messages. What is one complication in implementing NAT ALG for voice and video devices?

 NAT ALG is not compatible with the H.323 signaling protocol.

 NAT ALG introduces latency in the media path.

 The NAT ALG cannot inspect the contents of encrypted signaling messages.

 NAT ALG requires the use of NAT reflection, which may not be supported on all firewalls.

NO.52 A Jabber user is being prompted to trust the Expressway-E certificate when using Mobile and Remote Access.
The administrator has validated that the Expressway-E certificate is being trusted by the machine running the Jabber client.
What else can be done to solve this problem?

 Create a new CSR with new information on the SAN field.

 Include Cisco Unified Communications Manager registration domain in the Expressway-E certificate as a SAN.

 Change the domain name.

 Change the FQDN of the Expressway.

NO.53 When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?

 SDP b-line

 SIP record route

 SDP c-line

 SDP m-line

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

NO.54 What is the first step to restoring an Expressway cluster from a backup?

 use the backup that is specific to each Expressway peer in the cluster

 upgrade each Expressway peer to the latest Expressway software

 remove each Expressway peer from the cluster

 add all the Expressway peers to the cluster

NO.55 Which dial plan component is configured in Expressway-C to route a call to the Cisco UCM?

 call routing

 traversal subzone

 call policy

 search rule

Reference:
https://cmslab.ciscolive.com/pod8/cucm/expctrunk

NO.56 When a Cisco Webex Video Mesh Node is configured for an organization, which process does the Webex Teams client use to discover the optimal bridging resource?

 the lowest STUN round-trip delay to each node and cloud

 a reachable Video Mesh Node and then overflows to the cloud, if needed

 the SIP delay header during call setup

 an HTTPS speed and latency test to each node and the cloud

NO.57 Refer to the exhibit showing logs from the Expressway-C, a copy of the Expressway-E certificate, and the UC traversal zone configuration for the Expressway-C.
An office administrator is deploying mobile and remote access and sees an issue with the UC traversal zone. The zone is showing “TLS negotiation failure”. What is causing this issue?

 The Expressway-E certificate includes the Expressway-C FQDN as a SAN entry

 The Expressway-C is missing the FQDN of Cisco UCM in the Common Name of its certificate

 In the UC Traversal Zone on the Expressway-C, the peer address is set to the IP of the Expressway- E, which is not a SAN entry in the Expressway-E certificate

 The Expressway-E does not have the FQDN of Cisco UCM listed as a SAN in its certificate

Note that if you use an IP address (not recommended), that address must be present in the Expressway-E server certificate.
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X14-0-
1/mra/exwy_b_mra-deployment-guide-x1401/exwy_m_basic-configuration.html

NO.58 What it is the purpose of using ICE for Mobile and Remote Access endpoints in the Cisco Collaboration infrastructure?

 ICE controls the bandwidth usage for Cisco Collaboration endpoints if the endpoints are located outside the company network.

 ICE enables Cisco Collaboration endpoints to determine if there is direct connectivity between them.

 ICE uses FAST updates to optimize the video quality in case of packet loss. This technology is available only from Cisco Unified CM version 11.5 and later.

 ICE enablement allows for the Cisco Collaboration endpoint to register through Expressway servers to Cisco Unified Communications Manager behind a firewall.

https://www.cisco.com/c/en/us/td/docs/solutions/PA/ICE/icepa125.html

NO.59 Refer to the exhibit.

An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9.
Which value should be entered into the “Source” field to prevent toll fraud regardless at origin of the call?

 Traversal Zone

 Any

 Neighbor Zone

 All

NO.60 Which zone is required on a B2B deployment between Expressway-C and Expressway-E?

 traversal zone

 DNS zone

 default zone

 neighbor zone

NO.61 In a Mobile and Remote Access deployment, where must communications be encrypted with TLS?

 Cisco Expressway-E and endpoints outside the enterprise

 Cisco Expressway-C, Cisco Unified Communications Manager, and IM&P

 Cisco Expressway-C, Cisco Expressway-E, and Cisco Unified Communications Manager

 Cisco Expressway-C, Cisco Expressway-E, and endpoints outside the enterprise

NO.62 What it is the purpose of using ICE for Mobile and Remote Access endpoints in the Cisco Collaboration infrastructure?

 ICE controls the bandwidth usage for Cisco Collaboration endpoints if the endpoints are located outside the company network.

 ICE enables Cisco Collaboration endpoints to determine if there is direct connectivity between them.

 ICE uses FAST updates to optimize the video quality in case of packet loss. This technology is available only from Cisco Unified CM version 11.5 and later.

 ICE enablement allows for the Cisco Collaboration endpoint to register through Expressway servers to Cisco Unified Communications Manager behind a firewall.

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Cisco 300-820 exam covers a wide range of topics, including Cisco Webex Teams hybrid services, Cisco Expressway configurations, SIP federation, and Cisco Unified Border Element (CUBE) functionality. Candidates are required to have a thorough understanding of these topics to pass the exam. Moreover, the exam tests the candidate’s ability to troubleshoot and resolve issues related to Cisco Collaboration Cloud and Edge Solutions.

Cisco 300-820 exam is intended for professionals who want to enhance their career prospects in the field of Cisco Collaboration Cloud and Edge Solutions. Implementing Cisco Collaboration Cloud and Edge Solutions certification is particularly beneficial for network engineers, system administrators, solution architects, and technical support personnel. Implementing Cisco Collaboration Cloud and Edge Solutions certification not only validates the candidate’s knowledge and skills but also provides them with a competitive edge in the job market.

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