An ISO image of a CD contains which of the following as part of its structure?

An ISO image of a CD contains which of the following as part of its structure?

• A. A complete copy of the CD's boot information
• B. RAM content from the host system
• C. The hard drive's MBR
• D. Network routing table

Answer: (A)

An ISO image is an exact, sector-by-sector copy of a CD/DVD, including its boot information when the disc is bootable. The boot information is stored in the CD’s boot sector and, for bootable discs, in the boot catalog (El Torito) and the boot image referenced by it. This is why the image can be used to boot a system from the ISO. RAM content from the host is volatile and never stored on the optical disc image. The hard drive’s MBR resides on a physical hard drive, not on the CD, and a network routing table is part of an operating system’s configuration, not embedded in the disc’s structure. Thus, an ISO image includes a complete copy of the CD’s boot information.

An ISO image is an exact, sector-by-sector copy of a CD/DVD, including its boot information when the disc is bootable. The boot information is stored in the CD’s boot sector and, for bootable discs, in the boot catalog (El Torito) and the boot image referenced by it. This is why the image can be used to boot a system from the ISO. RAM content from the host is volatile and never stored on the optical disc image. The hard drive’s MBR resides on a physical hard drive, not on the CD, and a network routing table is part of an operating system’s configuration, not embedded in the disc’s structure. Thus, an ISO image includes a complete copy of the CD’s boot information.