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Core Concepts – 25%

Within this topic, the applicants should prove that they are capable of performing the following tasks:

Describing the Expressway Core dial plan components (including transforms; zones; regular expressions; search rules; pipes & links);
Describing the Expressway backup as well as restoring procedure (cluster & stand alone).
Describing the core Expressway settings (including network interfaces; certificates; DNS; QoS; network firewall rules; clustering);
Describing Expressway media traversal;

Cisco 300-820 Certification Exam is an excellent way for IT professionals to demonstrate their expertise in implementing and managing Cisco collaboration solutions. It is also a great way to enhance their career prospects by becoming a certified specialist in this field. By passing 300-820 exam, candidates can demonstrate their proficiency in deploying and managing collaboration solutions in a cloud or on-premises environment, which can help them stand out in a competitive job market.

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As you all know that the Implementing Cisco Collaboration Hybrid and Cloud Technologies (CLHCT) v2.0 (300-820) exam is the most challenging exam, since it's difficult to find preparation material for passing the Cisco 300-820 exam. ExamCost provides you with the most complete and comprehensive preparation material for the Cisco 300-820 Exam that will thoroughly prepare you to attempt the 300-820 exam and pass it with 100% success guaranteed.

Cisco 300-820: Topics

The Cisco 300-820 Exam validates the knowledge and skills of the professionals in a wide range of areas. The content of this certification test revolves around four domains. Let’s have a closer look at these topics and the skills covered within them.

Cisco Implementing Cisco Collaboration Hybrid and Cloud Technologies (CLHCT) v2.0 Sample Questions (Q274-Q279):

NEW QUESTION # 274
A remote branch office reports that Webex Board endpoints experience audio dropouts during active meetings, especially when file transfers occur simultaneously. WAN link utilization shows
95% usage during peak hours. Which two troubleshooting actions should be taken first? (Choose two.)

A. Increase the MTU size on the WAN interface to allow larger packets.
B. Use packet captures to confirm whether Webex RTP packets are being queued in the correct QoS class.
C. Verify that audio RTP streams are marked with DSCP EF end-to-end.
D. Apply WAN optimization appliances to compress all traffic, which reduces utilization.
E. Validate that the WAN QoS policy contains a low-latency queue for voice traffic.

Answer: C,E

Explanation:
Webex audio dropouts during high WAN utilization indicate that real-time voice media may not be receiving proper QoS treatment. Audio RTP should be marked DSCP EF end-to-end and placed into a low-latency queue so voice traffic is prioritized during congestion.

NEW QUESTION # 275
Which statement about the Cisco Webex hybrid service is true?

A. Hybrid Message service works only with Jabber cloud deployment.
B. Directory Connector is required for Azure AD.
C. Expressway Connector is required for an on-premises Exchange server.
D. Directory Connector must be deployed for OBTP to work with on-premises video devices.

Answer: D

NEW QUESTION # 276
Cisco Collaboration endpoints are exchanging encrypted signaling messages.
What is one major complication in implementing NAT ALG for voice and video devices?

A. NAT ALG introduces jitter in the voice path.
B. Source addresses cannot provide the destination addresses that remote endpoints should use for return packets.
C. The NAT ALG cannot inspect the contents of encrypted signaling messages.
D. Internal endpoints cannot use addresses from the private address space.

Answer: C

Explanation:
Explanation
https://www.voipinfo.net/docs/cisco/collab11.pdf

NEW QUESTION # 277
Refer to the exhibit. What is the result of a transformation applied to alias 88514?

A. 88515@ccnpcollab.com
B. 98851@ccnpcollab.com
C. 88513@ccnpcollab com
D. 88514@ccnpcollab.com

Answer: D

Explanation:
The answer should be 88514@ccnpcollab.com, since the regex considers anything after digit 8 (excludes 1-7), leaves the rest intact, and replaces the domain. So in short terms, it simply adds the domain after the DN.

NEW QUESTION # 278
Refer to the exhibit.

Cisco Unified Communications Manager routes the call via the Webex Meetings route list and route group to the Video Mesh cluster Node#1 in the Video Mesh cluster is hosting the meeting and has reached full capacity, but other nodes in the cluster still have spare capacity.
What happens to the participant's call?

A. Another node in the cluster is used and an intra-cluster cascade between Webex and the new Video Mesh node is formed.
B. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.
C. The call fails.
D. The call is queued.

Answer: A

NEW QUESTION # 279
......

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