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Recent questions tagged gate1988

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GATE CSE 1988 | Question: 17i-ii-iii
The following table gives the cost of transporting one tonne of goods from the origins A, B, C to the destinations F, G, H. Also shown are the availabilities of the goods at the origins and the requirements at the destinations. The ... . For the solution of (ii) above, calculate the values of the duals and determine whether this is an optimal solution.

go_editor asked in Others Dec 20, 2016

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GATE CSE 1988 | Question: 16ii-iii
If $x \| \underline{x} \| \infty = 1< i^{max} < n \: \: max \: \: ( \mid x1 \mid ) $ for the vector $\underline{x} = (x1, x2 \dots x_n)$ ... known property of this norm. Although this norm is very easy to calculate for any matrix, explain why the condition number is difficult (i.e. expensive) to calculate.

go_editor asked in Linear Algebra Dec 20, 2016

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6 votes

3 answers

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GATE CSE 1988 | Question: 16i
Assume that the matrix $A$ given below, has factorization of the form $LU=PA$, where $L$ is lower-triangular with all diagonal elements equal to $1, U$ is upper-triangular, and $P$ ... $L, U,$ and $P$ using Gaussian elimination with partial pivoting.

go_editor asked in Linear Algebra Dec 20, 2016

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8 votes

2 answers

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GATE CSE 1988 | Question: 15
Consider the DFA $M$ and NFA $M_{2}$ as defined below. Let the language accepted by machine $M$ be $L$. What language machine $M_{2}$ accepts, if $F2=A?$ $F2=B?$ $F2=C?$ $F2=D?$ $M=(Q, \Sigma, \delta, q_0, F)$ $M_{2}=(Q2, \Sigma, \delta_2, q_{00}, F2)$ ... $D=\{\langle p, q, r \rangle \mid p,q \in Q; r \in F\}$

go_editor asked in Theory of Computation Dec 20, 2016

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GATE CSE 1988 | Question: 14ii
Consider the following well-formed formula: $\exists x \forall y [ \neg \exists z [ p (y, z) \wedge p (z, y) ] \equiv p(x,y)]$ Show using resolution principle that the well-formed formula, given above, cannot be satisfied for any interpretation.

go_editor asked in Mathematical Logic Dec 20, 2016

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1 vote

1 answer

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GATE CSE 1988 | Question: 14i
Consider the following well-formed formula: $\exists x \forall y [ \neg \: \exists z [ p (y, z) \wedge p (z, y) ] \equiv p(x,y)]$ Express the above well-formed formula in clausal form.

go_editor asked in Mathematical Logic Dec 20, 2016

461 views

12 votes

4 answers

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GATE CSE 1988 | Question: 13iv
Solve the recurrence equations: $T(n)= T( \frac{n}{2})+1$ $T(1)=1$

go_editor asked in Algorithms Dec 20, 2016

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7 votes

3 answers

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GATE CSE 1988 | Question: 13iii
Are the two digraphs shown in the above figure isomorphic? Justify your answer.

go_editor asked in Graph Theory Dec 20, 2016

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22 votes

2 answers

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GATE CSE 1988 | Question: 13ii
If the set $S$ has a finite number of elements, prove that if $f$ maps $S$ onto $S$, then $f$ is one-to-one.

go_editor asked in Set Theory & Algebra Dec 20, 2016

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1 vote

1 answer

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GATE CSE 1988 | Question: 13ic
Verify whether the following mapping is a homomorphism. If so, determine its kernel. $f(x)=x^3$, for all $x$ belonging to $G$.

go_editor asked in Set Theory & Algebra Dec 20, 2016

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1 vote

0 answers

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GATE CSE 1988 | Question: 13ib
Verify whether the following mapping is a homomorphism. If so, determine its kernel. $\overline{G}=G$

go_editor asked in Graph Theory Dec 20, 2016

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1 vote

0 answers

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GATE CSE 1988 | Question: 13ia
Verify whether the following mapping is a homomorphism. If so, determine its kernel. $G$ is the group of non zero real numbers under multiplication.

go_editor asked in Set Theory & Algebra Dec 20, 2016

319 views

4 votes

2 answers

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GATE CSE 1988 | Question: 12iv
Select SNAME from S Where SNOin (select SNO from SP where PNOin (select PNO from P Where COLOUR='BLUE')) What relations are being used in the above SQL query? Given at least two attributes of each of these relations.

go_editor asked in Databases Dec 20, 2016

966 views

8 votes

3 answers

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GATE CSE 1988 | Question: 12iii
Describe the relational algebraic expression giving the relation returned by the following SQL query. Select SNAME from S Where SNOin (select SNO from SP where PNOin (select PNO from P Where COLOUR='BLUE'))

go_editor asked in Databases Dec 20, 2016

1.4k views

5 votes

1 answer

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GATE CSE 1988 | Question: 12iic
Using Armstrong’s axioms of functional dependency derive the following rules: $\{ x \rightarrow y, \: z \subset y \} \mid= x \rightarrow z$ (Note: $x \rightarrow y$ denotes $y$ is functionally dependent on $x$, $z \subseteq y$ denotes $z$ is subset of $y$, and $\mid =$ means derives).

go_editor asked in Databases Dec 20, 2016

841 views

4 votes

1 answer

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GATE CSE 1988 | Question: 12iib
Using Armstrong’s axioms of functional dependency derive the following rules: $\{ x \rightarrow y, \: wy \rightarrow z \} \mid= xw \rightarrow z$ (Note: $x \rightarrow y$ denotes $y$ is functionally dependent on $x$, $z \subseteq y$ denotes $z$ is subset of $y$, and $\mid =$ means derives).

go_editor asked in Databases Dec 20, 2016

723 views

8 votes

1 answer

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GATE CSE 1988 | Question: 12iia
Using Armstrong’s axioms of functional dependency derive the following rules: $\{ x \rightarrow y, \: x \rightarrow z \} \mid= x \rightarrow yz$ (Note: $x \rightarrow y$ denotes $y$ is functionally dependent on $x$, $z \subseteq y$ denotes $z$ is subset of $y$, and $\mid =$ means derives).

go_editor asked in Databases Dec 19, 2016

911 views

8 votes

1 answer

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GATE CSE 1988 | Question: 12i
What are the three axioms of functional dependency for the relational databases given by Armstrong.

go_editor asked in Databases Dec 19, 2016

1.2k views

7 votes

4 answers

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GATE CSE 1988 | Question: 11
A number of processes could be in a deadlock state if none of them can execute due to non-availability of sufficient resources. Let $P_i, 0 \leq i \leq 4$ represent five processes and let there be four resources types $r_j, 0 \leq j \leq 3$. Suppose the following ... Is the system currently in a safe state? If yes, explain why.

go_editor asked in Operating System Dec 19, 2016

2.2k views

12 votes

2 answers

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GATE CSE 1988 | Question: 10iib
Given below is solution for the critical section problem of two processes $P_0$ and $P_1$ ... until false Determine of the above solution is correct. If it is incorrect, demonstrate with an example how it violates the conditions.

go_editor asked in Operating System Dec 19, 2016

2.6k views

1 vote

1 answer

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GATE CSE 1988 | Question: 10iia
Translate the executable statements of the following Pascal Program into quadruples. Assume that integer and real values require four words each. repeat flag[i]:=true; while turn !=i do begin while flag[j] do skip turn:=i; end critical section flag[i]:=false; until false Program Test; ... 1...10] of real; begin i:=0; While i:<=10 do begin a[i]:=0; i:=i+1 end; end.

go_editor asked in Compiler Design Dec 19, 2016

652 views

4 votes

2 answers

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GATE CSE 1988 | Question: 10ib
Consider the following grammar: $S \rightarrow S$ $S \rightarrow SS \mid a \mid \epsilon$ Indicate the shift-reduce and reduce-reduce conflict (if any) in the various states of the $\text{LR(0)}$ parser.

go_editor asked in Compiler Design Dec 19, 2016

1.4k views

9 votes

2 answers

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GATE CSE 1988 | Question: 10ia
Consider the following grammar: $S \rightarrow S$ $S \rightarrow SS \mid a \mid \epsilon$ Construct the collection of sets of $\text{LR (0)}$ items for this grammar and draw its goto graph.

go_editor asked in Compiler Design Dec 19, 2016

2.2k views

10 votes

1 answer

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GATE CSE 1988 | Question: 9iii
In the program scheme given below indicate the instructions containing any operand needing relocation for position independent behaviour. Justify your answer. ...

go_editor asked in CO and Architecture Dec 19, 2016

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GATE CSE 1988 | Question: 9ii
The code for the implementation of a sub-routine to convert positive numeric data from binary to appropriate character string in a $PDP-11$ like machine has been given below Note-that $SP$ is the stack pointer and $R_i$ represents $i^{th}$ ...

go_editor asked in CO and Architecture Dec 19, 2016

364 views

5 votes

3 answers

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GATE CSE 1988 | Question: 9i
The following program fragment was written in an assembly language for a single address computer with one accumulator register: LOAD B MULT C STORE T1 ADD A STORE T2 MULT T2 ADD T1 STORE Z Give the arithmetic expression implemented by the fragment.

go_editor asked in CO and Architecture Dec 19, 2016

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GATE CSE 1988 | Question: 8iv
Consider the following Ada program: Procedure P is BAD-FORMAT: exception Procedure Q is begin ... if S/='b' then raise BAD-FORMAT end if; ... end Q; Procedure R is begin Q; exception when BAD-Format => ... handler body 1 end R; begin R; Q; exception when BAD-FORMAT => ... handler body 2 end P; Under what conditions are the two handler bodies $1$ and $2$ executed?

go_editor asked in Programming Dec 19, 2016

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GATE CSE 1988 | Question: 8iii
Write a LISP function to compute the product of all the numbers in a list. Assume that the list contains only number.

go_editor asked in Programming Dec 19, 2016

280 views

4 votes

2 answers

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GATE CSE 1988 | Question: 8ii
Consider the two program segments below: for i:=1 to f(x) by 1 do S end i:=1; While i<=f(x) do S i:=i+1 end Under what conditions are these two programs equivalent? Treat $S$ as any sequence of statements and $f$ as a function.

go_editor asked in Programming Dec 19, 2016

1.7k views

5 votes

1 answer

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GATE CSE 1988 | Question: 8i
Consider the procedure declaration: Procedure P (k: integer) where the parameter passing mechanism is call-by-value-result. Is it correct if the call, P (A[i]), where A is an array and i an integer, is implemented as below. create a new local variable, ... P using z for k; set A [i] to z; Explain your answer. If this is incorrect implementation, suggest a correct one.

go_editor asked in Compiler Design Dec 19, 2016

1.3k views

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