Which statement best differentiates data integrity from data availability in AMQS?

• A. Data availability ensures timely access for decision making and operations.
• B. Data integrity ensures information is accurate and unaltered.
• C. Data integrity guarantees data is never altered.
• D. Data availability ensures data is always accessible without outage.

Answer: (B)

Data integrity is about trustworthiness of data—it's supposed to be accurate and unaltered. The statement that best differentiates integrity from availability captures this: information is accurate and unaltered. Availability, by contrast, is about access to data when it's needed, focusing on timely access and the ability to use data for decision making and operations. In AMQS, you want data to be both reliable (integrity) and accessible (availability), but the core distinction is that integrity guarantees accuracy and no unauthorized changes, whereas availability concerns access and uptime. The other options describe availability aspects or use absolute claims (never altered, always accessible) that aren’t realistic, so they don’t differentiate the concept as clearly.