Cisco 300-420: Why?

For anyone who is trying to use Cisco products and solutions to build his/her career in the IT industry, becoming Cisco certified is the most appropriate thing to do. A lot of companies around the world, both big and small, are using the Cisco software and network equipment. No one can deny that Cisco products tend to be superior to the options of other competing organizations. What puts this provider at the top is the fact that it is consistently enhancing technology and adding improvements. The Cisco 300-420 is the perfect choice for those who are looking to pave their career towards enterprise design. Plus, passing this exam will give you an advantage over other applicants when looking for a job.

Objectives of 300-420 Test

There are various topics that are included in the exam and they are:

• Advanced Enterprise Campus Networks (25%).
This part of the exam content measures one's skills in designing campus networks for high availability and knowledge of techniques for platform abstraction, graceful restart, etc.; designing campus Layer 2 infrastructures and multicampus Layer 3 ones, including route summarization, VRFs, convergence, etc.; describing SD-Access Architecture as well as SD-Access fabric design for wireless and wired access.
• Enterprise Networks and WAN (20%).
This section addresses the following areas: comparison of WAN connectivity options (DWDM, Layer 2 VPN, 4G/5G, Metro Ethernet, etc.); designing site-to-site VPN, including dynamic multipoint VPN, Ipsec, GRE, and others; designing high availability for enterprise WAN (failover, backip connectivity, etc.); Cisco SD-WAN architecture (on-boarding, security, control plane, and more); Cisco SD-WAN design considerations (redundancy, security design, overlay design, and others).
• Advanced Address and Routing Solutions (25%).
This domain mainly focuses on creating structured addressing plans for IPv4 and IPv6; creating scalable, stable, and secure routing designs for IS-IS, EIGRP, OSPF, and BGP, including route filtering, load sharing, address families, path preference attributes, and route reflectors; determining IPv6 migration strategies, involving native, boundaries, and overlay.
• Network Services (20%).
The last domain focuses on the ability to choose proper QoS strategies, designing network management techniques; designing end-to-end QoS policies covering shaping, queuing, marking, and more; describing multicast routing concepts, and creating multicast services, including MSDP, SSM, and PIM bidirectional.
• Automation (10%).
The Automation domain includes things like choosing the correct YANG data model taking current requirements into account; differentiating between IETF, Cisco native YANG models, and Openconfig as well as between RESTCONF and NETCONF; understanding the impact of model-drive telemetry, covering on-change and periodic publications; comparing dial-in and dial-out approaches to model-drive telemetry.

Reference: https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/ensld-300-420.html

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Automation

This section makes up 10% of the whole content and requires that the students possess an understanding of the following processes:

• Selecting the appropriate YANG data model set to meet the requirements;
• Explaining the influence of model-driven telemetry on networks such as periodic publication and on-change publication;
• Comparing the dial-in and dial-out techniques to model-driven telemetry.
• Distinguishing between NETCONF & RESTCONF;

Prerequisites for Cisco 300-420 Exam

The target audience for this certification exam is those individuals who work as a Network Engineer, a Network Design Engineer, and a System Administrator. It is also designed for any professional in the field of IT looking to validate their knowledge and skills in enterprise networking & security. This Cisco test does not have any official prerequisites, so the potential candidates do not need to fulfill the working experience requirement or hold any certificates. However, the applicants must develop competence in the exam topics before taking it.

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