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Q.54) A multithreaded program P executes with x number of threads and uses y number of locks for ensuring mutual exclusion while operating on shared memory locations. -gate computer science 20171 AnswerIn a compiler, keywords of a language are recognized during -computer science-gate-20111 AnswerQ.53) Consider the following grammar: -gate computer science 20171 AnswerConsider the following grammar p --> xQRS Q --> yz|z R --> w|∈ S -> y Which is FOLLOW(Q)? -gate computer science 20171 AnswerThe probability that a k-digit number does NOT contain the digits 0, 5 or 9 is -gate computer science 20171 AnswerQ.8) The expression [(x + y)-|x - y|]/2 is equal to : -gate computer science 20171 AnswerThe statement (¬ p) → (¬ q) is logically equivalent to which of the statements below? I. p → q II. q → p III. (¬ q) ∨ p IV. (¬ p) ∨ q -gate computer science 20171 AnswerQ.58) The number of integers between 1 and 500 (both inclusive) that are divisible by 3 or 5 or 7 is ______. -gate computer science 20171 AnswerWhat is Program counter1 AnswerQ.61) Let u and v be two vectors in R2 whose Euclidean norms satisfy |u| = 2|v|. What is the value α such that w = u + αv bisects the angle between u and v ? -gate computer science 20171 AnswerFind the smallest number y such that y x 162 (y multiplied by 162) is a perfect cube. -gate computer science 20171 AnswerQ.11) Let X be a Gaussian random variable with mean 0 and variance σ2. Let Y = max(X,0) where max(a,b) is the maximum of a and b. The median of Y is _____. -gate computer science 20171 AnswerQ.55) Consider the following C program. -gate computer science 20171 AnswerIf G is grammar with productions S → SaS | aSb | bSa | SS | ∈ where S is the start variable, then which one of the following is not generated by G? -gate computer science 20171 AnswerConsider the first-order logic sentence F: ∀ x (∃ y R(x,y)). Assuming non-empty logical domains, which of the sentences below are implied by F? -gate computer science 20171 AnswerLet S be a sample space and two mutually exclusive events A and B be such that AÈB = S. If P(.) denotes the probability of the event, the maximum value of P(A)P(B) is? - Gate Computer Science 20141 AnswerFill in the blanks: GATE-Computer-Science-Engineering-20171 AnswerQ.51) A computer network uses polynomial over GF(2) for error checking with 8 bits as information bits and uses x3 + x + 1 as the generator polynomial to generate the check bits. In this network, the message 01011011 is transmitted as -gate computer science 20171 AnswerQ.64) The output of executing the following C program is ________. -gate computer science 20171 Answer Let T be a tree with 10 vertices. The sum of the degrees of all the vertices in T is _____. -gate computer science 20171 Answer