Operating System Mcqs

Page No. 31

To obtain better memory utilization, dynamic loading is used. With dynamic loading, a routine is not loaded until it is called. For implementing dynamic loading ____________


aspecial support from hardware is required

✖


bspecial support from operating system is essential

✖


cspecial support from both hardware and operating system is essential

✖


duser programs can implement dynamic loading without any special support from hardware or operating system

✓



In a paged memory, the page hit ratio is 0.35. The required to access a page in secondary memory is equal to 100 ns. The time required to access a page in primary memory is 10 ns. The average time required to access a page is?


a3.0 ns

✖


b68.0 ns

✖


c68.5 ns

✓


d78.5 ns

✖


View Answer 68.5 ns

When there is a large logical address space, the best way of paging would be ____________


anot to page

✖


ba two level paging algorithm

✓


cthe page table itself

✖


dall of the mentioned

✖



Illegal addresses are trapped using the _____ bit.


aerror

✖


bprotection

✖


cvalid – invalid

✓


daccess

✖


View Answer valid – invalid

When the valid – invalid bit is set to valid, it means that the associated page ____________


ais in the TLB

✖


bhas data in it

✖


cis in the process’s logical address space

✓


dis the system’s physical address space

✖



Memory protection in a paged environment is accomplished by ____________


aprotection algorithm with each page

✖


brestricted access rights to users

✖


crestriction on page visibility

✖


dprotection bit with each page

✓



The percentage of times a page number is found in the TLB is known as ____________


amiss ratio

✖


bhit ratio

✓


cmiss percent

✖


dnone of the mentioned

✖


View Answer hit ratio

An ______ uniquely identifies processes and is used to provide address space protection for that process.


aaddress space locator

✖


baddress space identifier

✓


caddress process identifier

✖


dnone of the mentioned

✖



If a page number is not found in the TLB, then it is known as a ____________


aTLB miss

✓


bBuffer miss

✖


cTLB hit

✖


dAll of the mentioned

✖


View Answer TLB miss

Each entry in a translation lookaside buffer (TLB) consists of ____________


akey

✓


bvalue

✖


cbit value

✖


dconstant

✖


View Answer key

Goto Page No.

Page 31 of 108

Alphabetical MCQs Categories
—

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"
—

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan