What is the difference between virtual address and physical address? Can physical address space be large...
Homework Answers
VIrtual Address (also known as logical address):
1. It is the address generated by the CPU during execution.
2. A user can access only the virtual address.
3. The virtual address can be used as a reference in creating the physical address.
4. It deals with compile-time address binding.
Physical Address:
1. It is the address refers to the location in the memory unit.
2. A user cannot view the physical address.
3. The memory management unit computes the physical address.
4. It deals with load-time address binding.
Yes, physical addresses can be greater than the virtual addresses as the relation between the two is given by-
Physical address = (virtual address + base address).
Add Answer to:
What is the difference between virtual address and physical
address? Can physical address space be large...
11. In a paged virtual memory system, can the computer 's physical memory address space be...
11. In a paged virtual memory system, can the computer 's physical memory address space be larger than a process's virtual memory address space? Explain your answer. (Note: A computer 's "physical memory address space" is the number of bits for the frame number plus the number of bits foir the offset. A process's "virtual memory address space" is the number of bits for a page number plus the number of bits for the offset.)
Given a virtual memory configuration with: • 4 TB virtual memory space • 32 GB physical...
Given a virtual memory configuration with: • 4 TB virtual memory space • 32 GB physical memory space • 16 KB page size How many bits are needed for the virtual address? Choose... How many bits are needed for the physical address? Choose... How many bits in the address correspond to page offset bits? Choose... - How many bits will the virtual page number (VPN) be? Choose... - How many bits will the physical page number (PPN) be? Choose... →...
SN 6 A system implements a paged virtual address space for each process using a one-level...
SN 6 A system implements a paged virtual address space for each process using a one-level page table. The maximum size of virtual address space is 4KB. The page table for the running process Includes the following valid entries: Virtual Virtual page 7 - Page frame 4 Virtual Virtual page 5 - Page frame 0 Virtual Virtual page 20 - Page frame 1 Virtual Virtual page 10 - Page frame 3 Virtual Virtual page 3 - Page frame 2 The...
The page table holds The physical address of the virtual pages The physical offset of the...
The page table holds The physical address of the virtual pages The physical offset of the virtual pages The physical page number of the virtual pages None of the above Virtual memory is A method to enable games to create virtual spaces A method to use all the RAM in the computer A technique that allows to speedup the processor A technique that enables multiprocessing A method to assign each process with its own address space A technique that allows...
A system implements a paged virtual address space for each process using a one-level page table....
A system implements a paged virtual address space for each process using a one-level page table. The maximum size of virtual address space is 8MB. The page table for the running process includes the following valid entries (the -> notation indicates that a virtual page maps to the givenpage frame, that is, it is located in that frame): Virtual page 2 -> Page frame4 Virtual page 4 -> Page frame 9 Virtual page 1 -> Page frame2 Virtual page 3...
Consider a virtual memory system with a 16-bit virtual address, a 10-bit physical address, and a...
Consider a virtual memory system with a 16-bit virtual address, a 10-bit physical address, and a 64-byte page size. The virtual address, 0x1235, is translated into a physical address using the page table below. VPN PPN Valid 44 02 1 45 05 1 46 08 0 47 --- 0 48 03 1 49 0A 1 4A --- 0 1. What is the hex VPN? (Enter as digits without 0x.) 2. What is the hex VPO? (Enter as digits without 0x.)...
What is the difference between physical carrier sense and virtual carrier sense as used in IEEE...
What is the difference between physical carrier sense and virtual carrier sense as used in IEEE 802.11 standard?
17. A computer system implements a paged virtual memory system. Assume a 16-bit virtual address space...
17. A computer system implements a paged virtual memory system. Assume a 16-bit virtual address space and a 24-bit physical address space. Assume that the first 6 bits of a virtual address index the page table and the rest of the bits are the page offset. A process has the following indexed page table. Index Page Table Entry (PTE) 0x3800 0x3600 0x3200 0x1000 2 3 Each page table entry qives a hexadecimal page frame addresses. Translate the following two hexadecimal...
1. Assume that your machine uses 16-bit virtual address and 14-bit physical address with 4KB page...
1. Assume that your machine uses 16-bit virtual address and 14-bit physical address with 4KB page size. To get full credit, show your work. a. Show bits of the virtual address and physical address. b. What is the maximum program size that can be run in this machine? c. What is the maximum physical memory that this machine can have? d. Show the numbers of virtual pages and page frames. e. What is the table size if a page entry...
Virtual memory address translation: a) Consider a machine with a physical memory of 8 GB, a...
Virtual memory address translation: a) Consider a machine with a physical memory of 8 GB, a page size of 4 KB, and a page table entry size of 4 bytes. How many levels of page tables would be required to map a 52-bit virtual address space if every page table fits into a single page? b) Without a cache or TLB, how many memory operations are required to read or write a page in physical memory? c) How much physical...
11. In a paged virtual memory system, can the computer 's physical memory address space be larger than a process's virtual memory address space? Explain your answer. (Note: A computer 's "physical memory address space" is the number of bits for the frame number plus the number of bits foir the offset. A process's "virtual memory address space" is the number of bits for a page number plus the number of bits for the offset.)
Given a virtual memory configuration with: • 4 TB virtual memory space • 32 GB physical memory space • 16 KB page size How many bits are needed for the virtual address? Choose... How many bits are needed for the physical address? Choose... How many bits in the address correspond to page offset bits? Choose... - How many bits will the virtual page number (VPN) be? Choose... - How many bits will the physical page number (PPN) be? Choose... →...
SN 6 A system implements a paged virtual address space for each process using a one-level page table. The maximum size of virtual address space is 4KB. The page table for the running process Includes the following valid entries: Virtual Virtual page 7 - Page frame 4 Virtual Virtual page 5 - Page frame 0 Virtual Virtual page 20 - Page frame 1 Virtual Virtual page 10 - Page frame 3 Virtual Virtual page 3 - Page frame 2 The...
The page table holds The physical address of the virtual pages The physical offset of the virtual pages The physical page number of the virtual pages None of the above Virtual memory is A method to enable games to create virtual spaces A method to use all the RAM in the computer A technique that allows to speedup the processor A technique that enables multiprocessing A method to assign each process with its own address space A technique that allows...
17. A computer system implements a paged virtual memory system. Assume a 16-bit virtual address space and a 24-bit physical address space. Assume that the first 6 bits of a virtual address index the page table and the rest of the bits are the page offset. A process has the following indexed page table. Index Page Table Entry (PTE) 0x3800 0x3600 0x3200 0x1000 2 3 Each page table entry qives a hexadecimal page frame addresses. Translate the following two hexadecimal...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago