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Seven students – P, Q, R, S, T, U, and V got the highest marks in Mathematics test among all students. Their marks out of 50 are 40, 42, 45, 46, 48, 50 (not necessarily in the same order). Two students have got the same marks as 46. P has neither got the lowest marks nor 46. Q has got the highest marks. U has got higher marks than P. R has got lower marks than T whereas T got lower than P. S has got lower marks than U. Who among the following has got the same marks as 46?
Consider the following solution to the producer-consumer synchronization problem. The shared buffer size is ?. Three semaphores empty, full and mutex are defined with respective initial values of 0, ? and 1. Semaphore empty denotes the number of available slots in the buffer, for the consumer to read from. Semaphore denotes the number of available slots in the buffer, for the producer to write to. The placeholder variables, denoted by P, Q, R, and S, in the code below can be assigned either empty or full. The valid semaphore operations are: wait ( ) and signal ( ). Producer: Consumer: do {         wait (P) ;         wait (mutex) ;         //Add item to buffer         signal (mutex) ;         signal (Q) ; } while (1) ; do {          wait (R) ;          wait (mutex) ;          //Consume item from buffer          signal (mutex) ;          signal (S) ; } while (1) ;   Which one of the following assignments to P, Q, R and S will yield the correct solution?
Four students A, B, C and D distributed 30 marbles among themselves. No two students got equal number of marbles. No student got more than 10 marbles. No student got less than 5 marbles. A and C got odd number of marbles. B and D got even number of marbles. A got more marbles than B, C got more marbles than D, B got more marbles than D.  What is the number of marbles with A? 
There are six persons Saurav, Harshita, Jay, Ashwini, Jagannath and Sakshi, who got different marks in the examination. Ashwini got more marks than all of them. Jay got more marks than two of them. Jagannath got less marks than only Ashwini. Saurav got less marks than 5 persons. Harshita got more marks than Jay while Sakshi got less marks than Jay. How many persons scored more marks than Sakshi?
Ajinkya, Ramesh and Vaibhav got first, second and third rank. But not in this sequence. After asking them they replied two answers each. Out of which one is true and other is false. But not in the same sequence. Their answers are as following. Ramesh : I got first rank. Ajinkya got second rank. Vaibhav : I got first rank. Ramesh got second rank. Ajinkya : I got first rank. Ramesh got third rank. Which is not the rank of Ajinkya?
There are seven students A, B, C, D, E, F and G, who have got highest marks in aggregate in a class. They are ranked as 1 to 7 (not necessarily in the same order). F has neither got highest nor lowest rank. D has got one rank higher than B. There are three students who have got higher marks than C and G is one of them. A has got higher rank than G but not the highest one. Which students have got the highest and the lowest rank?
Consider the following threads, T1, T2, and T3 executing on a single processor, synchronized using three binary semaphore variables, S1, S2, and S3, operated upon using standard wait() and signal(). The threads can be context switched in any order and at any time. T1 T2 T3 While(true) { Wait(S3); Print(“C”); Signal (S2); } While(true) { Wait(S1); Print(“B”); Signal (S3); } While(true) { Wait(S2); Print(“A”); Signal (S1); }   Which initialization of the semaphores would print the sequence BCABCABCA….?
This question comprises 3 sentences - A, B and C each of which comprises a sentence using the word WAIT. Identify the sentences where the word has been correctly used and mark that combination (A) Wait your options before investing (B) How long must we wait? (C) The longer we wait time the less is the chance of recovery
There are six persons A, B, C, D, E and F, who got different ranks in a coaching class. A got the best rank among all of them. F got the worst rank. B got a better rank than three persons. D’s rank was immediately above B. E got a better rank than C. Who got fifth rank among them?
H, Y, T, U and P got different ranks based on their marks in the semester examination and viva. H got 3rd rank in the semester exam and 5th rank in the viva. T got 5th position in the semester and 1st position in the viva. P got 2nd position in both exams and viva. Y got 1st position in semester examinations and 4th position in the viva. Who got 3rd position in the viva?