Question
Which of the following accurately describes the role of
virtual memory in modern operating systems?Solution
Detailed Explanation:Virtual memory is a memory management technique that gives the illusion of a larger memory space than physically available. It does this by using disk space as an extension of RAM, enabling processes to run even when their memory requirements exceed the physical memory's capacity. This is achieved through paging and swapping mechanisms, which divide memory into fixed-size pages and swap them between RAM and disk storage as needed. Virtual memory is essential for multitasking, as it isolates processes, prevents conflicts, and ensures efficient utilization of memory resources. It also enables features like memory protection, allowing secure execution of multiple programs simultaneously. Why Other Options Are Incorrect:
- Option A: Virtual memory complements physical memory but does not eliminate its need. Physical RAM is still required for efficient execution.
- Option C: Paging is the primary method used, often combined with segmentation for added flexibility. Virtual memory does not replace paging.
- Option D: Virtual memory is not restricted to distributed systems; it is a fundamental feature of most modern operating systems.
- Option E: Memory allocation algorithms are still required to manage physical and virtual memory effectively.
If the annual sales of a business are ₹X, what is the Maximum Permissible Bank Finance (MPBF) as per the Turnover Method?
Which of the following is not covered under Financial Services?
Which of the following statements is FALSE with regard to working capital management?
What is the statutory limit u/s 16(ii) for deduction of entertainment allowance in case of government employee?
The rule for recording transactions in a Personal Account is:
X Ltd. is absorbed by Y Ltd. Purchase consideration = ₹10,00,000. Assets taken over = ₹12,00,000, Liabilities = ₹3,00,000. What is the goodwill or...
The form of Annual Financial Statement and Demand for Grants shall be laid down to Parliament by whom?
Under IFRS 13, which level of the fair value hierarchy uses observable inputs other than quoted prices?
Once the Prospectus is filed with the Registrar of Companies, it is valid for how many days?
ICDS IV primarily deals with which aspect of financial reporting