問題文
A city authority publishes a live road traffic feed that every resident may read without signing in. The authority has rated the feed at the lowest of the three sensitivity levels, since what the readers need is an unbroken flow of updates. Which pillar does that rating rest on, and what does the rating ask for?
選択肢
- Among the three classifications the pillar behind this rating is confidentiality, and the feed therefore needs a strict protection level instead of a basic uptime check.
- Among the three classifications the pillar behind this rating is accountability, and the feed therefore needs a tiered protection level instead of a formal integrity review.
- Among the three classifications the pillar behind this rating is availability, and the feed therefore needs a lenient protection level instead of a compulsory penetration test.
- Among the three classifications the pillar behind this rating is integrity, and the feed therefore needs a medium protection level instead of a routine uptime check.