CAS-001 Question #344: Real Exam Question with Answer & Explanation

The correct answer is B: Zoning. Zoning (B) and LUN masking (E) are the two SAN mechanisms that directly enforce confidentiality by restricting access. Zoning operates at the SAN fabric (switch) level, creating logical boundaries so that only designated hosts can see specific storage ports - unauthorized hosts a

Question

Two storage administrators are discussing which SAN configurations will offer the MOST confidentiality. Which of the following configurations would the administrators use? (Select TWO).

Options

ADeduplication
BZoning
CSnapshots
DMultipathing
ELUN masking

Explanation

Zoning (B) and LUN masking (E) are the two SAN mechanisms that directly enforce confidentiality by restricting access. Zoning operates at the SAN fabric (switch) level, creating logical boundaries so that only designated hosts can see specific storage ports - unauthorized hosts are invisible to zoned-out storage. LUN masking operates at the storage controller level, restricting which host HBAs can access specific Logical Unit Numbers even if they are in the same zone. Together they provide defense-in-depth for storage access control. The other options address different concerns: deduplication and snapshots serve efficiency and recovery, while multipathing addresses availability and performance - none of these restrict which hosts can see or access data.

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