ITPEC IP April 2018 Question 51
ITPEC IP April 2018 — Question 51 of 100
Availability is the degree to which system functions remain usable when required, including during or after failures. It reflects uptime and the system's ability to resist faults or recover quickly enough to continue providing service.
Answer (c)
Why not others:
- maintaining associated data integrity describes data consistency or integrity
- elapsed time from instruction to result describes response performance
- ease of changing programs describes maintainability
Key rule: Availability concerns usable service over time and is commonly related to reliability and recovery time.
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