ccna 4 (icnd2) practice certification exam

ccna 4 (icnd2) practice certification exam.CiscoASA Adaptive Security Appliances are easy-to-deploy solutions that integrate firewall capabilities, Cisco Unified Communications (voice and video) security, Secure Sockets Layer (SSL) and IPSecVPN, IPS and content security services. A key part of the CiscoSecureX architecture, the ASA provides intelligent threat prevention and secure communications services that stop attacks before they have an impact. Designed to protect networks of all sizes, ASA reduces an organization's deployment and operational costs by providing comprehensive, multi-layered security.When selecting different firewall solutions, the most important thing is to perform a cost versus risk analysis. Regardless of which firewall solution you choose to purchase, proper network security design is critical to the successful deployment of a firewall. Note: Cisco also offers the ASA5500-X Series firewall, which brings the following feature enhancements over the ASA5500 Series.4.2 Firewall Technologies 105300% increase in throughput.VPN throughput has been increased by 60%OUses a multi-core enterprise-class CPUo Supports next-generation encryption. Integrated IPS acceleration hardware on the ASA5525.X, 5545-X core 5555-X firewall. The 5512-X and 5515.X are upgrades to the 5510; the 5525-X is an upgrade to the 5520; the 5545-X is an upgrade to the 5540X is an upgraded version of the 5550. The ASA5505 is still the latest version available on the market.4.2.3 Classic Firewall4.2.3.1 Introduction to the Classic FirewallThe Classic Firewall, previously known as Context-Based AccessControl (CBAC), is a solution that can be used within the CiscoIOS firewall. The Classic Firewall intelligently filters TCP and UDP packets based on application layer protocol session information. It provides stateful application layer filtering, including application-specific protocols, as well as multimedia applications and protocols that require multiple channels for communication, such as FTP and H.232.