Book Image

CCNA Security 210-260 Certification Guide

By : Glen D. Singh, Michael Vinod, Vijay Anandh
Book Image

CCNA Security 210-260 Certification Guide

By: Glen D. Singh, Michael Vinod, Vijay Anandh

Overview of this book

With CCNA Security certification, a network professional can demonstrate the skills required to develop security infrastructure, recognize threats and vulnerabilities to networks, and mitigate security threats. The CCNA Security 210-260 Certification Guide will help you grasp the fundamentals of network security and prepare you for the Cisco CCNA Security Certification exam. You’ll begin by getting a grip on the fundamentals of network security and exploring the different tools available. Then, you’ll see how to securely manage your network devices by implementing the AAA framework and configuring different management plane protocols. Next, you’ll learn about security on the data link layer by implementing various security toolkits. You’ll be introduced to various firewall technologies and will understand how to configure a zone-based firewall on a Cisco IOS device. You’ll configure a site-to-site VPN on a Cisco device and get familiar with different types of VPNs and configurations. Finally, you’ll delve into the concepts of IPS and endpoint security to secure your organization’s network infrastructure. By the end of this book, you’ll be ready to take the CCNA Security Exam (210-260).
Table of Contents (19 chapters)

Understanding Security Policies

A security policy for an organization can be defined as a set of rules, formed to secure a company's intellectual property. A security policy describes data flow limitations and restrictions to access by external sources, such as malicious programs, code files, and data. A security policy is used by the company's staff, IT users, and administrators, and so on. A security policy must be enforced on an organization's network so it helps them to protect the network from potential attack and threats.

The following should be considered before creating a security policy:

  • A security policy can be formed to balance access and security, and to minimize risk
  • A security policy created should not replace the thoughts of the user
  • When a potential threat is identified, a security policy must be created in such a way that it can be changed

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