ccna 200-301 livelessons

ccna 200-301 livelessons. IP Source Protection: IP address spoofing is prevented through the use of DHCP spoofing forms. This book focuses on the various technologies and protocols used to protect the management plane and data plane.1.5 SummaryOver the past 40+ years, cybersecurity has evolved from a rudimentary measure originally implemented on ARPA networks. Malicious acts of hacking and the requirement to maintain business operations have driven the evolving needs of cybersecurity. The job of the cybersecurity practitioner includes ensuring that the right people are proficient in cybersecurity tools, processes, technologies, protocols, and techniques. Cybersecurity organizations provide a forum for practitioners to collaborate with each other and enhance their skills; while cybersecurity policies also provide a practical framework within which all security practices within a company should conform to the1.5 Summary 23framework. Cyber practitioners must learn techniques to mitigate a variety of threats, including end-user vulnerability threats (e.g., viruses,24 Chapter 1 Modern Network Security Threatsworms, and Trojan horses). A virus is malware that attaches to another program and is capable of performing harmful actions on the end system. A worm executes arbitrary code and installs a copy of itself in the memory of the infected computer, which then infects other hosts. Trojan horses look very similar to other things. When a Trojan is downloaded and opened, it attacks the user's computer.In addition to these threat types, there are other ways of classifying threats such as detection attacks, access attacks, and DoS attacks. By classifying cyber attacks, we have the potential to address a particular type of attack rather than addressing individual attacks. There is no standardized way to classify cyber attacks. A reconnaissance attack is the unauthorized discovery and mapping of systems, services, and vulnerabilities. Access attacks exploit known vulnerabilities in authentication services, FTP services, and Web services to gain access to Web accounts, confidential data, and other sensitive information. A DoS attack sends a fairly large number of requests across a network or Internet ±. These excessive requests can cause the target device to be overloaded, which can cause performance degradation.The Cisco Network Foundation Protection (NFP) framework provides comprehensive guidance for protecting network infrastructure from attacks.Chapter 2 Protecting Network Devices