# F

- [Fault Tolerance](/glossary/f/fault-tolerance.md): The ability of a system to continue operating without interruption when one or more of its components fail.
- [Firewall](/glossary/f/firewall.md): A network security device that monitors and filters incoming and outgoing network traffic based on an organization’s previously established security policies.
- [Function as a Service (FaaS)](/glossary/f/function-as-a-service-faas.md)