Server Ch 4
Which RAID type provides no fault tolerance? A. RAID 0 B. RAID 1 C. RAID 3 D. RAID 5
A. RAID 0 is also known as disk striping. This is RAID that doesn't provide fault tolerance. Data is written across multiple drives, so one drive can be reading or writing while the next drive's read/write head is moving. This makes for faster data access. However, if any one of the drives fails, all content is lost
If a hard drive has 120 GB as calculated using the Base 10 number system, what will be the capacity reported by Windows? A. 120 GB B. 110 GB C. 111.8 GB D. 122.5 GB
C. When the hard disk manufacturer advertises a 120 GB hard drive, they are selling you 120,000,000,000 bytes. Windows divides this number by what it considers a GB (1073741824) and reports the hard disk size as: 120000000000 (bytes) / 1073741824 (bytes per GB) = 111.8 GB
Raid 1
Disk Mirroring
Raid 0
Disk Striping
Which RAID type is also called mirroring? A. RAID 0 B. RAID 1 C. RAID 3 D. RAID 5
B. RAID 1 is also known as disk mirroring. This is a method of producing fault tolerance by writing all data simultaneously to two separate drives.
