Fault Tolerance Flashcards, test questions and answers

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What is Fault Tolerance?

Fault tolerance is a term used in the computing world to refer to systems that are able to continue functioning even when there are errors or failures in components. In other words, it is the ability of a system to maintain operation despite hardware or software malfunctions. Fault tolerance can be achieved through redundancy and replication techniques, which allow for multiple copies of data and processes running at any given time in order to ensure availability during an outage. It also includes mechanisms such as failover clustering that allow certain services or applications to switch over from one node to another when needed due to failure or malfunctioning of the primary node.The goal of fault tolerance is twofold: first, it increases safety by ensuring continuity despite component faults; second, it reduces downtime and disruption for users who may rely on uninterrupted service levels. As businesses become more reliant on technology for their operations, fault tolerance has become increasingly important because outages can cost companies large amounts of money in lost productivity and diminished customer satisfaction. To maximize uptime while minimizing costs, organizations have adopted various strategies such as server virtualization and failover clustering that allow them to quickly identify problems with individual components while still providing reliable access and performance levels across their networks. At its core, fault tolerance ensures the integrity of mission-critical information by allowing redundant backups so that if any part fails then another copy is immediately available for use. This means should something happen like a power failure or hardware malfunction; critical systems will remain operational instead of going down entirely until repairs can be made.