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Answer:
1. option A simultaneously
2.option A undo
Answer:
A. 31 bits
B. 13 bits, 18 bits
C. 256k
Explanation:
A.
We have total size of physical memory as 2gb
This means that 2¹ x 2³⁰
Using the law of indices,
= 2³¹
So physical address is equal to 31 bits
B.
We get page size = 8kb = 2³
1 kb = 2¹⁰
2³ * 2¹⁰ = 2¹³
So page replacement = 13 bits
Page frame number
= physical address - replacement bits
= 31 - 13
= 18 bits
C.
The number of frames is given as
2¹⁸ = 2⁸ x 2¹⁰ = 256K
So number of frames = 256K
D
Logical add space is 256K
Page size= physical pages = 8kb
Logical address layout= 28biys
Page number = 15 bits
Displacement = 12 bits
256k/8k = 32 pages in address space process
Answer:
B. False
Explanation:
When a value is placed in a memory location, the previous value in that location is not moved to the next available location in memory. Rather than that happening, the previous value is totally discarded or removed from memory. In other words, the previous value is over-written. To prevent this from happening, the programmer has to explicitly or expressly move the previous value to another location in memory.