Key Points Secure Tunneling is defined for network or system use. Protected tunnel for traffic across an untrusted network. Used in operational and architecture contexts. Secure tunnels can provide confidentiality, integrity, or both depending on the design. Definition Secure Tunneling…
Key Points Covers terrestrial satellite infrastructure including stations, gateways, and control sites Works with the space segment to provide end-to-end service Handles control, communications, and service transport between satellites and terrestrial networks Constraints include site availability, telemetry and control coverage,…
Key Points Produces directed thrust for propulsion and attitude control Expels mass or uses force-producing mechanisms to change velocity or orientation Can be chemical or electric depending on mission needs Operates under constraints including propellant availability, thrust level, response time,…
Key Points Follows identity verification in access flows Controls permissions and resource access Used in digital, network, and physical systems Often paired with authentication Evaluates permissions after identity has been established Definition Authorization is the process of determining what an…
Key Points Carries traffic in the forward direction from infrastructure to endpoint Important in satellite and access networks Often called the downlink from network to user perspective Service delivery often depends on robust forward link performance Operates across satellite communications,…
Key Points Operates inside a routing domain Supports internal path selection and convergence Used by routers to share network reachability Includes distance-vector and link-state families Definition An Interior Gateway Protocol is a routing protocol used to exchange reachability information within…
Key Points Operates above basic control loops Provides high-level process oversight Used in industrial systems and SCADA Focuses on supervision and coordination rather than direct regulation Coordinates operation without replacing local control loops Manages process state through high-level commands and…
Key Points Extends communications coverage from the air Useful where terrain or distance blocks direct links Can support temporary coverage or emergency response Operates as an airborne repeater or intermediate network node Enables rapid deployment in difficult environments Definition UAV…
Key Points Supports transmission of surveillance data Extends sensor coverage or communications reach Used in security and monitoring operations Can be airborne, terrestrial, or network-based Bridges surveillance sources with monitoring destinations when direct connectivity is unavailable Definition Surveillance Relay is…
Key Points Encapsulation tunnel for carrying one protocol inside another Used in enterprise networking, site-to-site connectivity, and traffic transport designs Provides flexible tunneling without inherent security encryption Tunnel overhead, routing behavior, and endpoint configuration are operational considerations Failure modes include…
