When a program tries to access a page that is mapped in address space but not loaded in memory then?
When a program tries to access a page that is mapped in address space but not loaded in memory then?
page fault occurs is the correct answer to the given question. Explanation: The page fault arises when a code or the program tries to reach a storage block or the address space which is not located in the physical memory.
When a program tries to access a page which is not present in the main memory?
Discussion Forum
| Que. | When a program tries to access a page that is mapped in address space but not loaded in physical memory, then |
|---|---|
| b. | fatal error occurs |
| c. | page fault occurs |
| d. | no error occurs |
| Answer:page fault occurs |
What are the page replacement strategies?
Page Replacement Algorithms :
- First In First Out (FIFO) – This is the simplest page replacement algorithm.
- Optimal Page replacement – In this algorithm, pages are replaced which would not be used for the longest duration of time in the future.
- Least Recently Used – In this algorithm page will be replaced which is least recently used.
What do you mean by page replacement?
The page replacement algorithm decides which memory page is to be replaced. The process of replacement is sometimes called swap out or write to disk. Page replacement is done when the requested page is not found in the main memory (page fault).
What is highest in first out method?
Highest in, first out (HIFO) is a method of accounting for a firm’s inventories wherein the highest cost items are the first to be taken out of stock. HIFO inventory helps a company decrease their taxable income since it will realize the highest cost of goods sold.
What is FIFO method of stock valuation and where is it applied?
FIFO stands for “First-In, First-Out”. It is a method used for cost flow assumption purposes in the cost of goods sold calculation. The FIFO method assumes that the oldest products in a company’s inventory have been sold first. The costs paid for those oldest products are the ones used in the calculation.