Description: Unavailability refers to a state in which a service, application, or resource is unavailable for use, which can occur for various reasons, such as technical failures, scheduled maintenance, or cyberattacks. This phenomenon is critical in the technology realm, as it affects user experience and business operations. In the context of cloud computing, unavailability can arise due to issues in the underlying infrastructure or Internet connectivity. In the case of public key infrastructure, unavailability may involve the inability to access digital certificates necessary for authentication and encryption. On the other hand, in DDoS (Distributed Denial of Service) protection, unavailability is the result of an attack aimed at saturating a server’s resources, rendering it inoperative. Managing unavailability is essential to ensure service continuity and customer satisfaction, which involves implementing recovery and redundancy strategies to mitigate its effects.
