Please, explain them 1. In Windows 8 operating systems, a unit of execution that
ID: 3856954 • Letter: P
Question
Please, explain them
1. In Windows 8 operating systems, a unit of execution that must be manually scheduled by the application is called (A) Job (B) Fiber (C) Thread Pool (C) UMS (D) Multithread (E) None of the above
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2. In Solaris operating systems, a thread that has been terminated is in the state of (A) Sleep (B) Stop (C) Zombie (D) Free (E) None of the above
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3. Which of the following statement regarding Linux operating systems is incorrect? (A) A new process can be cloned with identical resources by using clone() system call (B) fork() is a system call in Linux to create a new thread (C) The use of namespaces allows the implementation of control groups (D) The UTS namespace allows administrators to initialize and configure parameters for different processes on the same system. (E) None of the above
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4. Which of the following statement regarding Android operating systems is incorrect? (A) The activities are arranged in first-in-first-out in the order where each activity is created. (B) Killing one or more activities may reclaim memory. (C) The user may revoke and return to killed activities (D) An Empty process can be used for caching purpose to improve startup time. (E) None of the above
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5. In Android operating systems, the installation and removal of an app is handled by (A) Activity Manager (B) Resource Manager (C) Package Manager (D) Content Providers (E) None of the above
Explanation / Answer
1. B) Fiber. - This is the unit of execution manually scheduled and runs in the context of scheduling thread.
2. C) Zombie. - Zombie is the process state when process/thread is terminated and parent thread is not waiting for it.
3. A) Processes cannot be cloned using clone() function, they are cloned using fork() with identical resources.
4. A) The activities are arranged in a back stack with first in last out arrangement in order of which activity is created.
5. C) Package Manager. - Activity manager manages various activities of application, Resource manager manages the resources of file system. Package manager deals with install, uninstall of all the packages.