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• The microinstructions stored in the control memory of a processor have a width of 26 bits. Each microinstruction is divided into three fields. a micro operation field of 13 bits, a next address field (X), and a MUX select field (Y). There are 8 status bits in the inputs of the MUX. How many bits are there in the X and Y fields, and what is the size of the control memory in number of words(A) 10, 3, 1024(B) 8, 5, 256(C) 5, 8, 2048(D) 10, 3, 512
• (A) 779(B) 679(C) 0(D) 256
• If the mean of a normal frequency distribution of 1000 items is 25 and its standard deviation is 2.5, then its maximum ordinate is(A) (1000/√2π).e-25(B) 1000/√2π(C) (1000/√2π ).e-2.5(D) 400/√2π
• A full binary tree with n leaves contains:(A) n nodes(B) log2 n nodes(C) 2n-1(D) 2n
• The cubic polynomial y(x) which takes the following values:y(0) = 1, y(1) = 0, y(2) = 1 y(3) = 10 is(A) (B) (C) (D)
• Which is the correct definition of a valid process transition in an operating system?(A) Wake up: ready → running(B) Dispatch: ready → running(C) Block: ready → running(D) Timer runout: ready → running
• The performance of Round Robin algorithm depends heavily on(A) size of the process(B) the I/O bursts of the process(C) the CPU bursts of the process(D) the size of the time quantum
• The subnet mask for a particular network is 255.255.31.0. Which of the following pairs of IP addresses could belong to this network?(A) 172.57.88.62 and 172.56.87.23(B) 10.35.28.2 and 10.35.29.4(C) 191.203.31.87 and 191.234.31.88(D) 128.8.129.43 and 128.8.161.55
• If A, B, C are any three matrices, then A’+ B’+ C’ is equal to(A) a null matrix(B) A+B+C(C) (A+B+C)’(D) -(A+B+C)
• then, find the value of x(A) 2(B) 3(C) 4(D) 5