0 votes 0 votes Ans is given d) Pawan Kumar 2 asked Dec 28, 2017 Pawan Kumar 2 368 views answer comment Share Follow See all 5 Comments See all 5 5 Comments reply Show 2 previous comments Pawan Kumar 2 commented Dec 28, 2017 reply Follow Share yes sir got it ... thank u 0 votes 0 votes gauravkc commented Dec 28, 2017 reply Follow Share The question seems to be ambiguous. Why round robin doesn't qualify to be the answer? I googled and even wikipedia page has both RR and Priority 0 votes 0 votes saxena0612 commented Dec 28, 2017 reply Follow Share @ gauravkc A key characteristic of an Real time OS is the level of its consistency concerning the amount of time it takes to accept and complete an application's task. Therefore if you wound use RR then it will have high amount of JITTER which is not permitted in HARD REAL TIME OS. 0 votes 0 votes Please log in or register to add a comment.