Question Detail Which operating system use write through catches UNIXXENIXULTRIXDOS Answer: Option D Ad Similar Questions : 1. Poor response times are caused by Busy processorHigh I/O rateHigh paging ratesAny of above Answer: Option D 2. Memory protection is normally done by the processor and the associated hardwarethe operating systemthe compilerthe user program Answer: Option A 3. Which among following scheduling algorithms give minimum average waiting time FCFSSJFRound robinOn priority Answer: Option B 4. If the property of locality of reference is well pronounced in a program the number of page faults will be morethe number of page faults will be lessthe number of page faults will samenone of above Answer: Option B 5. Four necessary conditions for deadlock are non pre-emption, circular wait, hold and wait and mutual exclusionrace conditionbuffer overflowNone of above Answer: Option A Read more from - Operating System Questions Answers - Chapter 1