CompTIA CASP+ Practice Test

Which SAN configuration offers the MOST confidentiality for storage administrators?

1. Zoning

2. LUN masking

3. Disk stripping

4. RAID 5

The correct answer is: Zoning

The configuration that offers the most confidentiality for storage administrators is zoning. Zoning is a technique used in SAN (Storage Area Network) environments to control access to storage devices. It allows administrators to create isolated environments within the SAN, which means that only designated hosts can access specific storage resources. This isolation helps to ensure that sensitive data is protected from unauthorized access and reduces the risk of data exposure among different users or systems within the network. In zoning, you can create zones that group together specific devices or initiators and targets. This means that even if multiple systems are connected to the same SAN fabric, they can't see or access each other's data unless they are part of the same zone. By restricting visibility in this way, zoning enhances the overall security posture of the SAN, making it the most effective option for safeguarding confidentiality. Other options like LUN masking primarily focus on limiting access to logical units within a storage system, but they do not provide the same level of network-level isolation that zoning does. Disk stripping and RAID configurations relate more to performance and redundancy rather than confidentiality, making them less relevant in the context of protecting data access. RAID 5, for example, improves fault tolerance but does not inherently provide confidentiality for access to data.