GATE CSE 1997


Q21.

The correct matching for the following pairs is:\begin{array}{ll} \text{(A) DMA I/O} & \text{(1) High speed RAM} \\ \text{(B) Cache} & \text{(2) Disk} \\ \text{(C) Interrupt I/O} & \text{(3) Printer} \\ \text{(D) Condition Code Register} & \text{(4) ALU} \\ \end{array}
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Q22.

RST 7.5 interrupt in 8085 microprocessor executes the interrupt service routing from interrupt vector location
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Q23.

The concatenation of two lists is to be performed on O(1) time. Which of the following implementations of a list should be used?
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Q24.

In the lattice defined by the Hasse diagram given in following figure, how many complements does the element 'e' have?
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Q25.

The correct matching for the following pairs is \begin{array}{ll|ll}\hline \text{A.} & \text{All pairs shortest path} & \text{1.} & \text{Greedy} \\\hline \text{B.} & \text{Quick Sort} & \text{2.}& \text{Depth-First Search} \\\hline \text{C.}& \text{Minimum weight spanning tree} & \text{3.} & \text{Dynamic Programming} \\\hline \text{D.} & \text{Connected Components} &\text{4.} & \text{Divide and Conquer} \\\hline \end{array}
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Q26.

For a database relation R(a, b, c, d), where the domains a, b, c, d include only atomic values, only the following functional dependencies and those that can be inferred from them hold a \rightarrow c b \rightarrow d This relation is
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Q27.

Purpose of a start bit in \text{RS-232} serial communication protocol is:
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Q28.

The trapezoidal method to numerically obtain \int_a^b f(x) dx has an error E bounded by \frac{b-a}{12} h^2 \max f''(x), x \in [a, b] where h is the width of the trapezoids. The minimum number of trapezoids guaranteed to ensure E \leq 10^{-4} in computing \ln 7 using f=\frac{1}{x} is
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Q29.

Using the forward Euler method to solve y''(t) = f(t), y'(0)=0 with a step size of h, we obtain the following values of y in the first four iterations:
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Q30.

The Newton-Raphson method is used to find the root of the equation X^2-2=0. If the iterations are started from -1, the iterations will
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