Podcast
Questions and Answers
What is the path traced out by the hard drive read/write head as the disk rotates?
What is the path traced out by the hard drive read/write head as the disk rotates?
- A triangle
- A rectangle
- A spiral
- A circle (correct)
What is the shape formed by the sets of tracks for all the surfaces in a multi-platter disk drive?
What is the shape formed by the sets of tracks for all the surfaces in a multi-platter disk drive?
- A cylinder (correct)
- A helix
- A cone
- A sphere
What is the relationship between the linear velocity of the disk and the constant angular velocity of the drive motor?
What is the relationship between the linear velocity of the disk and the constant angular velocity of the drive motor?
- The linear velocity decreases with distance from the axis
- The linear velocity is constant
- The linear velocity is proportional to the square root of the distance from the axis
- The linear velocity increases with distance from the axis (correct)
What is the time it takes for the hard-disk read/write head to move from one track to another called?
What is the time it takes for the hard-disk read/write head to move from one track to another called?
What system performance attribute is most increased by using redundant array of independent disks (RAID)?
What system performance attribute is most increased by using redundant array of independent disks (RAID)?
What is the logic used to detect errors in a special fault-tolerant computer system with an array of 3 disks?
What is the logic used to detect errors in a special fault-tolerant computer system with an array of 3 disks?
What is the reason for waiting after the hard-disk read/write head is located over the desired track?
What is the reason for waiting after the hard-disk read/write head is located over the desired track?
What is the advantage of using mirrored arrays with multiple disks?
What is the advantage of using mirrored arrays with multiple disks?
What happens when the data from one disk differs from the other two in a fault-tolerant system?
What happens when the data from one disk differs from the other two in a fault-tolerant system?
How many disks store exactly the same data in a mirrored array with 4 disks?
How many disks store exactly the same data in a mirrored array with 4 disks?
What is the shape formed by the tracks on a single surface of a multi-platter disk drive?
What is the shape formed by the tracks on a single surface of a multi-platter disk drive?
What is the term for the circle traced out by the hard drive read/write head?
What is the term for the circle traced out by the hard drive read/write head?
In a disk drive with multiple platters, how do the heads on each surface align?
In a disk drive with multiple platters, how do the heads on each surface align?
What is the benefit of using a redundant array of independent disks (RAID)?
What is the benefit of using a redundant array of independent disks (RAID)?
