1.
A disc queue with requests for I/O to blocks on
cylinders 98, 183, 37, 122, 14, 124, 65, 67 If the head is initially at 53rd
cylinder, what will be the total number of cylinders traversed if we are using
SSTF disc scheduling algorithm.
1) 156
2) 236
3) 366
4) 456
Answer: 2
2.
The Best-Fit algorithm for allocating regions of
contiguous memory does_________
1) Scan memory
region list from start for first fit
2) Pick the
closest free region in the entire list.
3) There is no
such algorithm
4) Find the worst
fit in the entire list
Answer: 2
3.
Question: From the given data Bytes/Sector = 500
Sectors/Track = 50
Tracks/Platter = 150
Platters/ Hard Disk = 10
Data Transfer rate = 10 millisecs per byte
Total number of millisecs taken to transfer
all the bytes in the hard disk?
1) 500 x 50 x 10 x 10
2) 500 x 50 x 150 x 10
3) 500 x 50 x 150 x 10 x10
4) 500 x 150 x 10 x10
Answer: 3
4.
From the given data Bytes/Sector = 500
Sectors/Track = 50
Tracks/Platter = 150
Platters/ Hard Disk = 10
Data Transfer rate = 10 millisecs per byte
Total number of millisecs taken to transfer
the bytes from one single platter?
1) 500 x 50 x 150
x 10
2) 500 x 50 x 10
3) 500 x 150 x 50 x 10
4) 500 x 150 x 10 x10
Answer: 1
5.
From the given data Bytes/Sector = 500
Sectors/Track = 50
Tracks/Platter = 150
Platters/ Hard Disk = 10
Data Transfer rate = 10 millisecs per byte
Total number of ms taken to transfer all
the bytes from a cylinder cylinder?
1) 500 x 50 x 10 x
10
2) 500 x 150 x 50
3) 500 x 150 x 10
x10
4) 50 x 150 x 10
x10
Answer: 1
6.
In a Hard
disk, Bytes per sector = 512
Sectors/track = 63
Number of Magnetic disks = 5
Tracks / platter = 50
Total number of bytes in a cylinder is
________
1) 512X 63X 5
2) 512X 50X 5
3) 512X 63 X 50
4) 512 X 5
Answer: 1
7.
In a Hard disk,
Bytes per sector = 512
Sectors/track = 63
Number of Magnetic disks = 5
Tracks / platter = 50
The total number of bytes/platter is _____
1) 512X 63X 5
2) 512X 50X 5
3) 512X 63 X 50
4) 512 X 5
Answer: 3
8.
In a Hard disk,
Bytes per sector = 512
Sectors/track = 63
Number of Magnetic disks = 5
Tracks / platter = 50
The total number of cylinders in the hard
disk is_______.
1) 63
2) 50
3) 512
4) 63 X 5
Answer: 2
9.
The size of single unit of allocation on disk is
called ____.
1) Sector
size
2) Page size
3) Segment
size
4)File size
Answer: 1
10.
Memory utilization factor shall be computed as
follows
(A) memory in use/allocated
memory.
(B) memory in use/total memory
connected.
(C) memory allocated/free existing memory.
(D) memory committed/total memory
available.
Answer:
B
11.
‘LRU’
page replacement policy is
(A) Last Replaced Unit.
(B) Last Restored
Unit.
(C) Least Recently Used.
(D) Least Required
Unit.
Ans: (C)
12.
Nested
Macro calls are expanded using the
(A) FIFO rule (First in first out)
(B)
LIFO (Last in First out)
(C) FILO rule (First in last out)
(D) None of the above
Ans: (B)
13.
A parser
which is a variant of top-down parsing without backtracking is
(A) Recursive
Descend.
(B) Operator Precedence.
(C) LL(1) parser.
(D) LALR Parser.
Ans: (A)
14.
The
expansion of nested macro calls follows
(A) FIFO rule.
(B) LIFO rule.
(C) LILO rule.
(D)
priority rule.
Ans: (B)
15.
In a
two-pass assembler, the task of the Pass II is to
(A) separate the symbol, mnemonic
opcode and operand fields.
(B) build the symbol table.
(C) construct intermediate
code.
(D)
synthesize the target program.
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