Please can u help me solve this HW. Thank You.

Last day to submit it in 25/11/2017

NEU HW #3 Operating System Department of Computer Engineering SECTION I Multiple choice 1. An efficient operating system generally achieves throughput and a) high, high b) high, low c) low, high d) low, low A process control block (PCB) typically includes which of the following information? a) the process's execution context b) the process state c) the process identification number (PID) d) all of the above What must occur for a system to perform a context switch? a) The kernel must save the current running process's execution context to the process's 2. 3. b) The kernel must load the previous execution context of a ready process. c) both a) and b) d) none of the above 4. A disadvantage of preemptive scheduling is_ a) increased overhead b) the possibility that a process can monopolize the while executing an infinite loop c) that short processes can experience lengthy service delays while longer process complete d) both a and b 5. Under scheduling, processes execute in the order the scheduler receives them. a) SRTF b) PS c) RP d) FIFO Under SPF scheduling, important processes will be executed a) according to their estimated time to completion b) before less important processes can execute c) after less important processes have completed execution d) in a random order to ensure fairness Under fixed-partition multiprogramming, larger than the memory and data process currently loaded into it. a) Compaction b) Garbage collection c) Internal fragmentation d) External fragmentation 6. 7, occurs when a memory partition is -partition multiprogramming allows a process to occupy only as much space as needed in an attempt to prevent 1 Page