Question Detail A thread is lightweight process where the context switching is low lightweight process where the context swithching is highused to speed up paging used in dead locks Answer: Option A Similar Questions : 1. Daisy chain is a device for connecting a number of controllers to a deviceconnecting a number of device to a controllerall of above none of above Answer: Option B 2. Which one is true The linkage editor is used to edit programs which have to later link togetherThe linkage editor links object module during compilingThe linkage editor links objects modules and resolves external references between them before loadingnone of above Answer: Option C 3. Which is single user operating system MS-DOSUNIXXENIXLINUX Answer: Option A 4. Semaphores function is to synchronize critical resources to prevent deadlocksynchronize processes for better CPU utilizationused for memory managementnone of above Answer: Option A 5. Fragmentation of a file system occurs only is file is not used properlycan always be preventedhappens in all file systemscan be removed by compaction Answer: Option B Read more from - Operating System Questions Answers - Chapter 1