Which statement describes a dynamic disk?

The statement that describes a dynamic disk is:

“It is a type of disk with the ability to create volumes that span across more than one disk even if the unallocated space is noncontiguous.”

This statement accurately represents the key feature of dynamic disks. Dynamic disks are a type of disk management in Windows that offers more flexibility than basic disks. They allow for the creation of volumes that span multiple disks (spanned and striped volumes), as well as the ability to create volumes that can be extended without the need to restart the system. Dynamic disks can also support RAID-5 volumes and mirrored volumes. One of their notable capabilities is creating a single logical volume that spans across noncontiguous unallocated space on multiple physical disks.

The other statements describe different concepts:

• “It takes the first 512 bytes on the disk and contains the boot loader, an executable program that allows a user to choose from multiple operating systems.” This describes the Master Boot Record (MBR), not a dynamic disk. The MBR is located in the first sector of a storage device and contains the boot loader and partition table for MBR-partitioned disks.
• “It is a standard for the layout of the hard drive partition table using globally unique identifiers. All partitions are primary.” This statement refers to the GUID Partition Table (GPT). GPT is a modern partitioning scheme that uses globally unique identifiers for partitions and does not differentiate between primary and extended partitions.
• “It is often used to organize data storage by subdividing it into as many as 23 logical sections.” This description is more akin to logical partitions in an extended partition within the MBR partitioning scheme. MBR allows up to four primary partitions, or three primary and one extended partition, which can then be subdivided into multiple logical drives (though the number 23 is not a standard limit for logical drives).