CompTIA Cloud+ Practice Test

Which technology combines multiple network storage devices into a single storage unit?

1. Virtual switch

2. Virtual HBA

3. Virtual NIC

4. Storage virtualization

The correct answer is: Storage virtualization

Storage virtualization is the correct answer because it is specifically designed to abstract and pool multiple network storage devices into a single, manageable storage unit. This technology allows organizations to manage their storage resources more effectively, creating an environment where storage can be dynamically allocated based on demand, improving efficiency and flexibility. With storage virtualization, various physical storage devices can be combined and presented as a single logical storage resource. This enables easier management, resource allocation, and improved performance, particularly in environments where large amounts of data are handled. It simplifies storage management by allowing administrators to treat diverse storage devices as a single unit, regardless of their physical location or the underlying technologies they utilize. Other options, such as a virtual switch, virtual HBA (Host Bus Adapter), and virtual NIC (Network Interface Card), do not relate directly to combining storage devices. A virtual switch manages network traffic for virtual machines, while a virtual HBA and virtual NIC facilitate communication between servers and storage devices or networks but do not combine storage resources in the way that storage virtualization does. Thus, they do not fulfill the requirement of the question.