Question 11 : Which of the following is not a type of optical disk?
1. DVD
2. CD
3. WORM
4. Winchester
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Question 12 : The range of access times of optical disks is generally ______
1. 100 to 300 milliseconds
2. 10 to 30 milliseconds
3. 200 to 400 milliseconds
4. 20 to 40 milliseconds
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Question 13 : CLV stands for, in terms of rotation of the optical disk ___
1. Concurrent lines value
2. Constant Linear velocity
3. constant linear value
4. concurrent linear velocity
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Question 14 : Which of the following correctly represents the track pattern of an optical disk ?
1.
2.
3.
4.
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Question 15 : Rotation of the disk must vary __________ with the radius of the disk.
1. directly
2. inversely
3. concurrently
4. accordingly
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Question 16 : The storage capacity of an optical disk is given by:
1. Number of sectors * number of bytes per sector
2. Number of sectors * 2(number of bytes per sector)
3. Number of sectors * 3(number of bytes per sector)
4. Number of sectors * 0.5(number of bytes per sector)
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Question 17 : The technology used in optical disks is ______
1. Reflective
2. Refractive
3. Laser Beam
4. Diffraction
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Question 18 : Optical disks are proved to be a promising random access medium for high capacity secondary storage.
1. True
2. False
3.
4.
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Question 19 : A ____________ disk consists of a circular disk, which is coated with a thin metal or some other material that is highly reflective.
1. magnetic
2. optical
3. compact
4. hard
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Question 20 : The time required to spin the desired sector under the read/write head, once the read/write head is positioned on the desired track.
1. Seek time
2. Arrival rate
3. Latency
4. Transfer rate
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