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A school has a certain number of students out of which 40% come to school by bus and 50% come to school by auto and 20% students come by both transport and remaining 750 students come by walking. The total number of students who come to school only by bus is what percent of the total number of students who come to school only by Auto?
What is concerned with the prediction of replacement costs and determination of the most economic replacement policy ?
Recall that Belady’s anomaly is that the page-fault rate may increase as the number of allocated frames increases. Now, consider the following statements: S1: Random page replacement algorithm (where a page chosen at random is replaced) Suffers from Belady’s anomaly S2: LRU page replacement algorithm suffers from Belady’s anomaly Which of the following is CORRECT?
The question given below consists of a statement and /or a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statement(s) is/are sufficient to answer the given question. A card is picked at random from a well shuffled regular pack of cards. What card is it? I. If another card is drawn without replacement, the probability that it is a red queen is not 2/51 II. If another card is drawn without replacement, the probability that it is not a diamond is 13/17
A computer has twenty physical page frames which contain pages numbered 101 through 120. Now a program accesses the pages numbered 1, 2, …, 100 in that order, and repeats the access sequence THRICE. Which one of the following page replacement policies experiences the same number of page faults as the optimal page replacement policy for this program?
Segment replacement algorithms are more complex than page replacement algorithms because ____________
_________ replacement allows a process to select a replacement frame from the set of all frames, even if the frame is currently allocated to some other process.
A phrase in the following sentence has been underlined. Choose the most appropriate phrase from the given alternatives to improve the sentence. Pick ‘No improvement’ in case no improvement is required.   For most people, money is the driving force behind their dedication of work.  
Given below are two premises (A and B). Four conclusions are drawn from them. Select the code that states validly drawn conclusion(s) (taking the premises individually or jointly). Premises : (A) Most of the dancers are physically fit. (B) Most of the singers are dancers. Conclusions : (a) Most of the singers are physically fit. (b) Most of the dancers are singers. (c) Most of the physically fit persons are dancers. (d) Most of the physically fit persons are singers
Choose the most appropriate replacement from the options given for the quotation word/words of the following sentences. He quickly "looked" at his watch.