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Recent questions tagged memory-management

6 votes
1 answer
452
Virtual Memory
If i have a Reference string with S  and page fault as N . then what is number of page fault when we take reverse of string sr ? 1)FIFO 2)LRU 3)MRU 4)OPTIMAL  // i was given this question for 1 algorithm , but the i tried to find for all page replacement algorithm .      
If i have a Reference string with S  and page fault as N . then what is number of page fault when we take reverse of string sr ?1)FIFO2)LRU3)MRU4)OPTIMAL // i was given...
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1 votes
2 answers
455
Memory management
On a system using fixed partition  with sizes 2^8, 2^16, 2^24, 2^32 and 2 ^ 64. How many bits must the limit register have ? a) 16 bits b)24 bits c)32 bits d) 64 bits
On a system using fixed partition  with sizes 2^8, 2^16, 2^24, 2^32 and 2 ^ 64. How many bits must the limit register have ?a) 16 bitsb)24 bitsc)32 bitsd) 64 bits
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1 votes
2 answers
456
FIFO belady anamoly
Is it always true that FIFO  will suffer from Belady Anamoly when i increase the frame number allocate from k to k + 1 .or it depends upon the reference string also ?
Is it always true that FIFO  will suffer from Belady Anamoly when i increase the frame number allocate from k to k + 1 .or it depends upon the reference string also ?
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7 votes
3 answers
460
ISRO2015-62
The minimum time delay between the initiation of two independent memory operations is called Access time Cycle time Rotational time Latency time
The minimum time delay between the initiation of two independent memory operations is calledAccess timeCycle timeRotational timeLatency time
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1 votes
3 answers
461
Which blocksize is considered for transfering words from mem to cache incase miss if blocksize of memory & cache differ?
Case1) cache block size is 4 Words and memory block size is 8 WordsCase2) cache block size is 8 Words and memory block size is 4 Words
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0 votes
3 answers
462
No. of bits in physical and logical address space
Is it possible to have different number of pages and frames or they need to be equal in number?
Is it possible to have different number of pages and frames or they need to be equal in number?
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68 votes
6 answers
465
GATE IT 2006 | Question: 56
For each of the four processes $P_1, P_2, P_3,$ and $P_4$. The total size in kilobytes $(KB)$ ... $\text{S < P < T}$ $\text{S < T < P}$ $\text{T < S < P}$
For each of the four processes $P_1, P_2, P_3,$ and $P_4$. The total size in kilobytes $(KB)$ and the number of segments are given below.$$\small \begin{array}{|c|c|c|}\h...
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54 votes
8 answers
466
GATE IT 2007 | Question: 11
Let a memory have four free blocks of sizes $4k$, $8k$, $20k$, $2k$ ... $J7$ will be completed will be $16$ $19$ $20$ $37$
Let a memory have four free blocks of sizes $4k$, $8k$, $20k$, $2k$. These blocks are allocated following the best-fit strategy. The allocation requests are stored in a q...
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1 votes
1 answer
470
Fragmentation is
Fragmentation is a. dividing the secondary memory into equal sized fragments b. dividing the main memory into equal size fragments c. fragments of memory world used in a page d. fragments of memory words unused in a page. Please explain.
Fragmentation isa. dividing the secondary memory into equal sized fragmentsb. dividing the main memory into equal size fragmentsc. fragments of memory world used in a pag...
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26 votes
4 answers
471
GATE CSE 1998 | Question: 2.16
The overlay tree for a program is as shown below: What will be the size of the partition (in physical memory) required to load (and run) this program? $\text{12 KB}$ $\text{14 KB}$ $\text{10 KB}$ $\text{8 KB}$
The overlay tree for a program is as shown below:What will be the size of the partition (in physical memory) required to load (and run) this program?$\text{12 KB}$$\text{...
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