Protection against system failure by providing extra (redundant) capacity is the goal of which approach?

Protection against system failure by providing extra (redundant) capacity is the goal of which approach?

• A. Redundancy
• B. Fault tolerant
• C. Sanitation
• D. Certification

Answer: (B)

Fault tolerance is the ability of a system to continue operating even when some components fail. This is achieved by provisioning extra capacity and redundancy so that if one part breaks, another can take over without interrupting service. Examples include redundant power supplies, failover clusters, and hot-swappable components with automatic switchover. The goal is to protect against system failure by ensuring there’s enough backup capacity and mechanisms to keep the service running. Redundancy is a technique used to achieve fault tolerance, but the overarching aim is to maintain operation under fault conditions. Sanitation and certification do not address maintaining uptime in the face of hardware or software faults.

Fault tolerance is the ability of a system to continue operating even when some components fail. This is achieved by provisioning extra capacity and redundancy so that if one part breaks, another can take over without interrupting service. Examples include redundant power supplies, failover clusters, and hot-swappable components with automatic switchover. The goal is to protect against system failure by ensuring there’s enough backup capacity and mechanisms to keep the service running. Redundancy is a technique used to achieve fault tolerance, but the overarching aim is to maintain operation under fault conditions. Sanitation and certification do not address maintaining uptime in the face of hardware or software faults.