IT Security and Fault Tolerance Concepts

These flashcards cover key vocabulary and concepts related to IT security, fault tolerance, and network systems as discussed in the lecture.

Principle of Least Common Mechanism

Mechanisms used to access resources should not be shared to limit vulnerabilities affecting multiple systems.

SPOF

Single Point of Failure; a component whose failure would lead to the entire system becoming unavailable.

Fault Tolerant Network

A network designed to remain operational despite the failure of one or more of its components.

Redundant Array of Independent Drives (RAID)

A storage technology that combines multiple hard drives into a single unit for redundancy and performance.

MTTF

Mean Time To Failure; the predicted average time until a device fails.

Google File System (GFS)

A file system designed to handle large data sets across distributed clusters of machines with redundancy.

Master-Slave Replication

A database replication model where one primary node (master) handles write operations while one or more secondary nodes (slaves) handle read operations.

Masterless Replication

A replication model where no single node is designated as the master, allowing for more flexible and fault-tolerant data storage.

Multi Master Replication

A database replication technique where multiple nodes can act as masters, allowing simultaneous read and write operations.

FCAPS

A network management model encompassing Fault, Configuration, Accounting, Performance, and Security.