Description: Network availability refers to the degree to which a network is operational and accessible to users and systems that depend on it. This concept is fundamental in the fields of telecommunications and computing, as a network with high availability ensures that services and applications are accessible at all times, minimizing downtime. Network availability is often measured in percentage terms, where 99.9% availability means that the network can be down for a maximum of approximately 8.76 hours per year. Factors influencing availability include hardware redundancy, fault recovery capabilities, traffic management, and security. In a business environment, high availability is crucial for maintaining business continuity and customer satisfaction, as any interruption can result in significant losses. Furthermore, in the era of cloud computing and mobility, network availability has become even more critical, as users expect constant access to services and data from anywhere at any time.
