1
GATE CSE 1995
MCQ (Single Correct Answer)
+2
-0.6
In a virtual memory system the address space specified by the address lines of the $$CPU$$ must be __________ than the physical memory size and _______ than the secondary storage size.
A
smaller, smaller
B
smaller, larger
C
larger, smaller
D
larger, larger
2
GATE CSE 1995
MCQ (Single Correct Answer)
+2
-0.6
The capacity of a memory unit is defined by the number of words multiplied by the number of bits/word. How many separate address and data lines are needed for a memory of $$4K\,\, \times \,\,16?$$
A
$$10$$ address, $$16$$ data lines
B
$$11$$ address, $$8$$ data lines
C
$$12$$ address, $$16$$ data lines
D
$$12$$ address, $$12$$ data lines
3
GATE CSE 1994
MCQ (Single Correct Answer)
+2
-0.6
A memory page containing a heavily used variable that was initialized very early and is in constant use is removed when
A
LRU page replacement algorithm is used
B
FIFO page replacement algorithm is used
C
LFU page replacement algorithm is used
D
None of the above
4
GATE CSE 1994
MCQ (Single Correct Answer)
+2
-0.6
Consider the following heap (Figure) in which blank regions are not in use and hatched region are in use.

The sequence of requests for blocks of size $$300, 25, 125, 50$$ can be satisfied if we use.

GATE CSE 1994 Operating Systems - Memory Management Question 20 English
A
Either first fit or best fit policy (any one)
B
First fit but not best fit policy
C
Best fit but first fit policy
D
None of the above
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