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Cisco 300-820 Exam Topics:

Reference: https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/clcei-300-820.html

Intimate use mode

All exam materials in 300-820 learning materials contain PDF, APP, and PC formats. They have the same questions and answers but with different using methods. If you like to take notes randomly according to your own habits while studying, we recommend that you use the PDF format. You can print all the materials in 300-820 study engine to paper. Then you can sketch on the paper and mark the focus with different colored pens. This will be helpful for you to review the content of the materials. If you are busy with work and can't afford a lot of spare time to review, 300-820 exam questions also prepare an APP version for you. The APP version provide you with mock exams, time-limited exams, and online error correction and let you can review on any electronic device. At the same time, for any version, we do not limit the number of downloads and the number of concurrent users, you can even buy 300-820 learning materials together with your friends, which undoubtedly saves you a lot of overhead.

Mobile & Remote Access – 25%

To deal with the questions from this domain, the examinees need to prove that they are proficient in:

• Troubleshooting a Mobile & Remote Access solution.
• Configuring a Mobile & Remote Access solution (including DNS records types; certificates, HTTP allow list; Unified Communications traversal zones; Unified Communications configuration within Expressway; SIP trunk security profile within Cisco Unified Communications Manager);

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Core Concepts – 25%

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

• Describing protocol interworking within Expressway (including SIP < > H.323 as well as IPv4 & IPv6);
• Describing the Expressway Core dial plan components (including transforms; zones; regular expressions; search rules; pipes & links);
• Describing the SIP media encryption mode (including auto; best effort; force unencrypted; force encrypted);
• Describing the Expressway backup as well as restoring procedure (cluster & stand alone).
• Describing the function of TURN, STUNI, and ICE;
• Describing Expressway media traversal;
• Describing the complexities of NAT within a Collaboration environment;
• Describing Expressway Licensing (including option keys; license consumption; release key);
• Describing the core Expressway settings (including network interfaces; certificates; DNS; QoS; network firewall rules; clustering);