Computer Architecture

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Indresh • 9.61K Points
Tutor III

Q 41. The air pressure can be countered by putting ______ in the head-disc surface arrangement.

(A) air filter
(B) spring mechanism
(C) coolant
(D) none of the mentioned
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Indresh • 9.61K Points
Tutor III

Q 42. _________ pushes the heads away from the surface as they rotate at their standard rates.

(A) magnetic tension
(B) electric force
(C) air pressure
(D) none of the mentioned
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Indresh • 9.61K Points
Tutor III

Q 43. The read/write heads must be near to disk surfaces for better storage.

(A) true
(B) false
(C) ---
(D) ---
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Indresh • 9.61K Points
Tutor III

Q 44. The drawback of Manchester encoding is 

(A) the cost of the encoding scheme
(B) the speed of encoding the data
(C) the latency offered
(D) the low bit storage density provided
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Indresh • 9.61K Points
Tutor III

Q 45. One of the most widely used schemes of encoding used is

(A) nrz-polar
(B) rz-polar
(C) manchester
(D) block encoding
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Indresh • 9.61K Points
Tutor III

Q 46. For the synchronization of the read head, we make use of a

(A) framing bit
(B) synchronization bit
(C) clock
(D) dirty bit
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Indresh • 9.61K Points
Tutor III

Q 47. The digital information is stored on the hard disk by

(A) applying a suitable electric pulse
(B) applying a suitable magnetic field
(C) applying a suitable nuclear field
(D) by using optic waves
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Indresh • 9.61K Points
Tutor III

Q 48. The main reason for the discontinuation of semi conductor based storage devices for providing large storage space is

(A) lack of sufficient resources
(B) high cost per bit value
(C) lack of speed of operation
(D) none of the mentioned
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Indresh • 9.61K Points
Tutor III

Q 49. The associatively mapped virtual memory makes use of

(A) tlb (translation look-aside buffer).
(B) page table
(C) frame table
(D) none of the mentioned
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Indresh • 9.61K Points
Tutor III

Q 50. The virtual memory basically stores the next segment of data to be executed on the

(A) secondary storage
(B) disks
(C) ram
(D) rom
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