Key Points Covers the full key lifecycle from generation through revocation Supports encryption and authentication systems Requires secure storage and access control Critical in security operations and compliance Failure modes include key exposure, lost keys, expired keys, and broken trust…
Key Points Alignment of system time values across devices or platforms Used to coordinate logging, control, scheduling, and event ordering Operates across telecom, industrial systems, distributed computing, and measurement environments Supports consistent interpretation of when events occurred Definition Time Synchronization…
Key Points Finds shortest path from a source node to all reachable destinations Uses cumulative path cost to expand candidates Applies to routing, path planning, network engineering, and graph optimization problems Requires nonnegative edge weights Produces deterministic, globally optimal paths…
Key Points Software-based deployment model for network functions Replaces or supplements fixed-purpose network appliances with virtualized software functions Functions such as routing, firewalling, and optimization run on virtualized infrastructure Enables flexible deployment, scaling, and orchestration of network capabilities Used in…
Key Points Uses passive or minimal processing relay mechanism Common in traditional satellite links and broadcast systems Depends heavily on ground segment for signal processing Contrasts with regenerative payload designs Reduces spacecraft complexity at the cost of onboard flexibility Amplifies…
Key Points Shares route metrics with neighboring routers Uses hop count as its primary metric Simple routing protocol with limited scale Used mainly in legacy or small networks Limited ability to model complex topologies Slower convergence compared to more advanced…
Key Points Preserve local autonomy while cooperating Used in political, operational, and network contexts Can describe federated cooperation structures Often imply shared objectives with independent control Coordination without full centralization Definition Confederations are groups of autonomous systems or organizations that…
Key Points Lower microwave band with strong propagation characteristics Known for weather resilience compared to higher microwave bands Used in satellite communications, broadcasting, and fixed wireless systems Moderate bandwidth capacity with robust coverage Often selected where stability and reliability are…
Key Points Timing requirement where occasional misses degrade quality rather than cause failure Defined for network or system use in operational and control contexts Used in media, interactive systems, and latency-sensitive control applications Tolerates occasional misses while maintaining acceptable service…
Key Points Delivered as a network service over cloud infrastructure Can include file, block, or object storage models Used for applications, backups, archives, and enterprise workloads Scales with cloud infrastructure without local hardware ownership Access performance, retention cost, consistency behavior,…
