CompTIA Cloud+ Practice Test

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What technique provides data access control exclusively to authorized hosts for a LUN?

RAID Masking
LUN Masking
RAID Mirroring
LUN Binding

The correct answer is: LUN Masking

LUN masking is a technique used in storage area networks (SANs) to provide data access control exclusively to authorized hosts for a Logical Unit Number (LUN). This process involves defining which specific hosts or initiators have permission to access a particular LUN while preventing others from seeing or using that LUN. By employing LUN masking, storage administrators can effectively manage and enhance security for sensitive data. Only authorized servers can interact with specific data sets, which minimizes the risks of unauthorized access and data breaches. This is particularly critical in environments where data privacy and compliance with regulations are paramount. In contrast, RAID masking is not a standard term recognized in relation to host access; it typically refers to redundancy strategies that distribute data across multiple disks. RAID mirroring involves creating an exact copy of data onto another disk, focusing on data protection rather than access control. LUN binding, though related to LUN configurations, does not serve the primary purpose of restricting access.