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Recent questions tagged gate2002
Questions from GATE 2002
+4
votes
3
answers
1
My doubt of security concern while using Dynamic linking
"Dynamic linking can cause security concerns as till run time path for searching dynamic library is not known." Can someone explain this in his own and simple words?
asked
Mar 28, 2018
in
Operating System
by
Akash Kumar Roy
Junior
(
559
points)

193
views
operatingsystem
compilerdesign
dynamic
linking
gate2002
+4
votes
3
answers
2
GATE200218b
The functionality of atomic TESTANDSET assembly language instruction is given by the following C function int TESTANDSET (int *x) { int y; A1: y=*x; A2: *x=1; A3: return y; } Complete the following C functions for implementing code for ... starvationfree? For the above solution, show by an example that mutual exclusion is not ensured if TESTANDSET instruction is not atomic?
asked
Feb 28, 2018
in
Operating System
by
jothee
Veteran
(
105k
points)

602
views
gate2002
operatingsystem
processsynchronization
normal
descriptive
+4
votes
1
answer
3
UGCNETJune2015III12
In the indexed scheme of blocks to a file, the maximum possible size of the file depends on: The number of blocks used for index and the size of index Size of Blocks and size of Address Size of index Size of block
asked
Jul 31, 2016
in
Operating System
by
jothee
Veteran
(
105k
points)

531
views
ugcnetjune2015iii
gate2002
operatingsystem
filesystem
+14
votes
2
answers
4
GATE20025b
Determine whether each of the following is a tautology, a contradiction, or neither ("$\lor$" is disjunction, "$\land$" is conjunction, "$\rightarrow$" is implication, "$\neg$" is negation, and "$\leftrightarrow$" is biconditional (if and only if). $A \leftrightarrow (A \lor A)$ $(A \lor B) \rightarrow B$ $A \land (\neg (A \lor B))$
asked
Nov 7, 2014
in
Mathematical Logic
by
Arjun
Veteran
(
430k
points)

1.2k
views
gate2002
mathematicallogic
easy
descriptive
propositionallogic
+22
votes
1
answer
5
GATE200222
Construct all the parse trees corresponding to $i + j * k$ for the grammar $E \rightarrow E+E$ $E \rightarrow E*E$ $E \rightarrow id$ In this grammar, what is the precedence of the two operators $*$ and $+$? If only one parse tree is desired for any string in the same language, what changes are to be made so that the resulting LALR(1) grammar is unambiguous?
asked
Sep 16, 2014
in
Compiler Design
by
Kathleen
Veteran
(
52.2k
points)

975
views
gate2002
compilerdesign
parsing
normal
descriptive
+18
votes
1
answer
6
GATE200221
We require a four state automaton to recognize the regular expression $(a\mid b)^*abb$ Give an NFA for this purpose Give a DFA for this purpose
asked
Sep 16, 2014
in
Theory of Computation
by
Kathleen
Veteran
(
52.2k
points)

947
views
gate2002
theoryofcomputation
finiteautomata
normal
descriptive
+19
votes
2
answers
7
GATE200220
The following solution to the single producer single consumer problem uses semaphores for synchronization. #define BUFFSIZE 100 buffer buf[BUFFSIZE]; int first = last = 0; semaphore b_full = 0; semaphore b_empty = BUFFSIZE void producer() { while(1) { ... $c1$ and immediately before $c2$ so that the program works correctly for multiple producers and consumers.
asked
Sep 16, 2014
in
Operating System
by
Kathleen
Veteran
(
52.2k
points)

1.8k
views
gate2002
operatingsystem
processsynchronization
normal
descriptive
+24
votes
3
answers
8
GATE200219
A computer uses $32bit$ virtual address, and $32bit$ physical address. The physical memory is byte addressable, and the page size is $4$ $\text{kbytes}$ . It is decided to use two level page tables to translate from virtual address to ... entries that can be contained in each page? How many bits are available for storing protection and other information in each page table entry?
asked
Sep 16, 2014
in
Operating System
by
Kathleen
Veteran
(
52.2k
points)

3.8k
views
gate2002
operatingsystem
virtualmemory
normal
descriptive
+15
votes
2
answers
9
GATE200218a
Draw the process state transition diagram of an OS in which (i) each process is in one of the five states: created, ready, running, blocked (i.e., sleep or wait), or terminated, and (ii) only nonpreemptive scheduling is used by the OS. Label the transitions appropriately.
asked
Sep 16, 2014
in
Operating System
by
Kathleen
Veteran
(
52.2k
points)

1.7k
views
gate2002
operatingsystem
processsynchronization
normal
descriptive
+25
votes
2
answers
10
GATE200217
The following table refers to search items for a key in $B$trees and $B^+$ ... $(2,11)$ and $(11,6)$ are now inserted into $R.$ What are the additional tuples that are inserted in $V$?
asked
Sep 16, 2014
in
Databases
by
Kathleen
Veteran
(
52.2k
points)

2k
views
gate2002
databases
btree
normal
descriptive
+35
votes
3
answers
11
GATE200216
For relation R=(L, M, N, O, P), the following dependencies hold: $ M \rightarrow O,$ $NO \rightarrow P,$ $P \rightarrow L$ and $L \rightarrow MN$ R is decomposed into R1 = (L, M, N, P) and R2 = (M, O). Is ... Is the above decomposition dependencypreserving? If not, list all the dependencies that are not preserved. What is the highest normal form satisfied by the above decomposition?
asked
Sep 16, 2014
in
Databases
by
Kathleen
Veteran
(
52.2k
points)

3.1k
views
gate2002
databases
databasenormalization
normal
descriptive
+19
votes
4
answers
12
GATE200215
A university placement center maintains a relational database of companies that interview students on campus and make job offers to those successful in the interview. The schema of the database is given below: ... $five$ students were offered jobs, the name of the degree and the average offered salary of students in this degree program.
asked
Sep 16, 2014
in
Databases
by
Kathleen
Veteran
(
52.2k
points)

1.5k
views
gate2002
databases
normal
descriptive
relationalalgebra
sql
+17
votes
1
answer
13
GATE200214
The aim of the following question is to prove that the language $\{M \mid M$ $\text {is the code of the Turing Machine which, irrespective of the input, halts and outputs a}$ $1\}$ ... is the second step $M$ must make? What key property relates the behaviour of $M$ on $w$ to the behaviour of $M'$ on $x$?
asked
Sep 16, 2014
in
Theory of Computation
by
Kathleen
Veteran
(
52.2k
points)

1.1k
views
gate2002
theoryofcomputation
decidability
normal
turingmachine
descriptive
difficult
+21
votes
3
answers
14
GATE200213
In how many ways can a given positive integer $n \geq 2$ be expressed as the sum of $2$ positive integers (which are not necessarily distinct). For example, for $n=3$ the number of ways is $2$, i.e., $1+2, 2+1$. Give only the answer ... integer $n \geq k$ be expressed as the sum of $k$ positive integers (which are not necessarily distinct). Give only the answer without explanation.
asked
Sep 16, 2014
in
Combinatory
by
Kathleen
Veteran
(
52.2k
points)

1.4k
views
gate2002
permutationandcombination
normal
descriptive
ballsinbins
+18
votes
3
answers
15
GATE200212
Fill in the blanks in the following template of an algorithm to compute all pairs shortest path lengths in a directed graph $G$ with $n*n$ adjacency matrix $A$. $A[i,j]$ equals $1$ if there is an edge in $G$ from $i$ to $j$, and $0$ otherwise. ... line containing the blanks in the Algorithm step and fill in the blanks. Fill in the blank: The running time of the Algorithm is $O$(___).
asked
Sep 16, 2014
in
Algorithms
by
Kathleen
Veteran
(
52.2k
points)

1.5k
views
gate2002
algorithms
graphalgorithms
timecomplexity
normal
descriptive
+15
votes
2
answers
16
GATE200211
The following recursive function in C is a solution to the Towers of Hanoi problem. void move(int n, char A, char B, char C) { if (......................) { move (.............................); printf("Move disk %d from pole %c to pole %c\n", n, A,C); move (.....................); } } Fill in the dotted parts of the solution.
asked
Sep 16, 2014
in
Programming
by
Kathleen
Veteran
(
52.2k
points)

1.1k
views
gate2002
programming
recursion
normal
descriptive
+27
votes
1
answer
17
GATE200210
In a C program, an array is declared as $\text{float} \ A[2048]$. Each array element is $4 \ \text{Bytes}$ in size, and the starting address of the array is $0x00000000$. This program is run on a computer that has a direct mapped ... occur? Justify your answer briefly. Assume that the data cache is initially empty and that no other data or instruction accesses are to be considered.
asked
Sep 16, 2014
in
CO and Architecture
by
Kathleen
Veteran
(
52.2k
points)

1.7k
views
gate2002
coandarchitecture
cachememory
normal
descriptive
+28
votes
4
answers
18
GATE20029
Consider the following $32bit$ floatingpoint representation scheme as shown in the format below. A value is specified by $3$ fields, a one bit sign field (with $0$ for positive and $1$ for negative values), a $24 bit$ fraction field (with the ... the hexadecimal. What is the largest value that can be represented using this format? Express your answer as the nearest power of $10$.
asked
Sep 16, 2014
in
Digital Logic
by
Kathleen
Veteran
(
52.2k
points)

3.5k
views
gate2002
digitallogic
numberrepresentation
normal
descriptive
+8
votes
1
answer
19
GATE20028
Consider the following circuit. $A = a_2a_1a_0$ and $B=b_2b_1b_0$ are three bit binary numbers input to the circuit. The output is $Z=z_3z_2z_1z_0$. R0, R1 and R2 are registers with loading clock shown. The registers are loaded with their input data with the falling edge of a ... b. What does the circuit implement?
asked
Sep 16, 2014
in
Digital Logic
by
Kathleen
Veteran
(
52.2k
points)

786
views
gate2002
digitallogic
normal
descriptive
digitalcounter
+21
votes
4
answers
20
GATE20027
Express the function $f(x,y,z) = xy' + yz'$ with only one complement operation and one or more AND/OR operations. Draw the logic circuit implementing the expression obtained, using a single NOT gate and one or more AND/OR gates. Transform the ... circuit (without expressing its switching function) into an equivalent logic circuit that employs only $6$ NAND gates each with $2$inputs.
asked
Sep 16, 2014
in
Digital Logic
by
Kathleen
Veteran
(
52.2k
points)

1.9k
views
gate2002
digitallogic
normal
descriptive
digitalcircuits
+14
votes
1
answer
21
GATE20026
Draw all binary trees having exactly three nodes labeled $A, B$ and $C$ on which preorder traversal gives the sequence $C, B, A$.
asked
Sep 16, 2014
in
DS
by
Kathleen
Veteran
(
52.2k
points)

652
views
gate2002
datastructures
binarytree
easy
descriptive
+19
votes
4
answers
22
GATE20025a
Obtain the eigen values of the matrix$A=\begin {bmatrix} 1 & 2 & 34 & 49 \\ 0 & 2 & 43 & 94 \\ 0 & 0 & 2 & 104 \\ 0 & 0 & 0 & 1 \end{bmatrix}$
asked
Sep 16, 2014
in
Linear Algebra
by
Kathleen
Veteran
(
52.2k
points)

1k
views
gate2002
linearalgebra
eigenvalue
normal
descriptive
+13
votes
2
answers
23
GATE20024
$S=\{(1,2), (2,1)\}$ is binary relation on set $A = \{1,2,3\}$. Is it irreflexive? Add the minimum number of ordered pairs to S to make it an equivalence relation. Give the modified $S$. Let $S=\{a,b\}$ and let $\square(S)$ be the ... . Consider the binary relation '$\subseteq$ (set inclusion)' on $\square(S)$. Draw the Hasse diagram corresponding to the lattice ($\square(S), \subseteq$)
asked
Sep 16, 2014
in
Set Theory & Algebra
by
Kathleen
Veteran
(
52.2k
points)

1k
views
gate2002
settheory&algebra
normal
lattice
descriptive
+14
votes
2
answers
24
GATE20023
Let $A$ be a set of $n(>0)$ elements. Let $N_r$ be the number of binary relations on $A$ and let $N_f$ be the number of functions from $A$ to $A$ Give the expression for $N_r,$ in terms of $n.$ Give the expression for $N_f,$ terms of $n.$ Which is larger for all possible $n,N_r$ or $N_f$
asked
Sep 16, 2014
in
Set Theory & Algebra
by
Kathleen
Veteran
(
52.2k
points)

838
views
gate2002
settheory&algebra
normal
descriptive
relations
+32
votes
6
answers
25
GATE20022.25
From the following instance of a relation schema $R(A,B,C)$ ... not functionally determine $C$ $B$ does not functionally determine $C$ $A$ does not functionally determine $B$ and $B$ does not functionally determine $C$
asked
Sep 16, 2014
in
Databases
by
Kathleen
Veteran
(
52.2k
points)

3.6k
views
gate2002
databases
databasenormalization
+31
votes
5
answers
26
GATE20022.24
Relation $R$ is decomposed using a set of functional dependencies, $F$, and relation $S$ is decomposed using another set of functional dependencies, $G$. One decomposition is definitely $\text{BCNF}$, the other is definitely $3NF$, but it is not known ... that the closures of $F$ and $G$ are available). Dependencypreservation Losslessjoin $\text{BCNF}$ definition $3NF$ definition
asked
Sep 16, 2014
in
Databases
by
Kathleen
Veteran
(
52.2k
points)

3k
views
gate2002
databases
databasenormalization
easy
+23
votes
3
answers
27
GATE20022.23, UGCNETJune2012II26
A $B^+$  tree index is to be built on the Name attribute of the relation STUDENT. Assume that all the student names are of length $8$ bytes, disk blocks are of size $512$ bytes, and index pointers are of size $4$ bytes. Given the scenario, what would be the best choice of the degree (i.e. number of pointers per node) of the $B^+$  tree? $16$ $42$ $43$ $44$
asked
Sep 16, 2014
in
Databases
by
Kathleen
Veteran
(
52.2k
points)

4.5k
views
gate2002
databases
btree
normal
ugcnetjune2012ii
+21
votes
5
answers
28
GATE20022.22
In the index allocation scheme of blocks to a file, the maximum possible size of the file depends on the size of the blocks, and the size of the address of the blocks. the number of blocks used for the index, and the size of the blocks. the size of the blocks, the number of blocks used for the index, and the size of the address of the blocks. None of the above
asked
Sep 16, 2014
in
Databases
by
Kathleen
Veteran
(
52.2k
points)

4.6k
views
gate2002
databases
indexing
normal
+32
votes
4
answers
29
GATE20022.21
Which combination of the following features will suffice to characterize an OS as a multiprogrammed OS? More than one program may be loaded into main memory at the same time for execution If a program waits for certain events such as I/O, another program is immediately scheduled for ... program is immediately scheduled for execution. (a) (a) and (b) (a) and (c) (a), (b) and (c)
asked
Sep 16, 2014
in
Operating System
by
Kathleen
Veteran
(
52.2k
points)

3.6k
views
gate2002
operatingsystem
normal
process
+24
votes
3
answers
30
GATE20022.20
Dynamic linking can cause security concerns because Security is dynamic The path for searching dynamic libraries is not known till runtime Linking is insecure Cryptographic procedures are not available for dynamic linking
asked
Sep 16, 2014
in
Operating System
by
Kathleen
Veteran
(
52.2k
points)

2k
views
gate2002
operatingsystem
runtimeenvironments
easy
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