Question Detail A public key encryption system Allows only the correct sender to decode the dataAllows only the correct receiver to decode the dataAllows anyone to decode the datanone of above Answer: Option B Similar Questions : 1. A hardware device which is capable of executing a sequence of instructions, is known as CPUALUCUProcessor Answer: Option D 2. Dispatcher function is to put tasks in I/O waitschedule tasks in processorchange task prioritiesAll of above Answer: Option A 3. In real time OS, which is most suitable scheduling scheme round robinFCFSpre-emptive schedulingrandom scheduling Answer: Option C 4. Which of following is not a condition of Dead Lock ? Mutual ExclusionNo PreemptionHold and WaitData Transfer Answer: Option D 5. Reference bit is used for Implementing LRU page replacement algorithmImplementing NRU algorithmTo check the page table entry in the cache memorynone of above Answer: Option B Read more from - Operating System Questions Answers - Chapter 1