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Tag Archives: GATE CS 2018

A lexical analyzer uses the following patterns to recognize three tokens T1, T2, and T3 over the alphabet {a,b,c}. T1: a?(b∣c)*a T2: b?(a∣c)*b T3: c?(b∣a)*c… Read More
Consider the following four relational schemas. For each schema, all non-trivial functional dependencies are listed, The underlined attributes are the respective primary keys. Schema I:… Read More
Consider a matrix P whose only eigenvectors are the multiples of . Consider the following statements. (I) P does not have an inverse (II) P… Read More
Let G be a simple undirected graph. Let TD be a depth first search tree of G. Let TB be a breadth first search tree… Read More
The instruction pipeline of a RISC processor has the following stages: Instruction Fetch (IF), Instruction Decode (ID), Operand Fetch (OF), Perform Operation (PO) and Writeback… Read More
Consider the weights and values of items listed below. Note that there is only one unit of each item. The task is to pick a… Read More
Consider the relations r(A, B) and s(B, C), where s.B is a primary key and r.B is a foreign key referencing s.B. Consider the query… Read More
Let N be the set of natural numbers. Consider the following sets, P: Set of Rational numbers (positive and negative) Q: Set of functions from… Read More
The number of possible min-heaps containing each value from {1, 2, 3, 4, 5, 6, 7} exactly once is _______. Note –This was Numerical Type… Read More
Let G be a graph with 100! vertices, with each vertex labelled by a distinct permutation of the numbers 1, 2, …, 100. There is… Read More
In a system, there are three types of resources: E, F and G. Four processes P0, P1, P2 and P3 execute concurrently. At the outset,… Read More
Consider the first-order logic sentence φ ≡ ∃s∃t∃u∀v∀w∀x∀y ψ(s, t, u, v, w, x, y) where ψ(s, t, u, v, w, x, y) is a… Read More
Consider the unsigned 8-bit fixed point binary number representation, below, b7b6b5b4b3 ⋅ b2b1b0 where the position of the binary point is between b3 and b2… Read More
Consider the following C program: #include <stdio.h> void fun1(char *s1, char *s2) {   char *temp;   temp = s1;   s1 = s2;   s2 = temp; }… Read More
Assume that multiplying a matrix G1 of dimension p×q with another matrix G2 of dimension q×r requires pqr scalar multiplications. Computing the product of n… Read More

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