Question

which of the following is expressed as the percentage of time a system responds properly to requests? a ○ disaster recovery b ○ fault tolerance c ○ scaling d ○ availability

Explanation:

• Option A: Disaster recovery focuses on restoring a system after a disaster, not measuring response time percentage.
• Option B: Fault tolerance is about a system's ability to continue operating with faults, not expressed as a time - response percentage.
• Option C: Scaling relates to a system's ability to handle increased load, not response time percentage.
• Option D: Availability is defined as the percentage of time a system is able to respond properly to requests.

Answer:

D. Availability