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1

GATE CSE 2003 | Question: 30
Consider the following SQL query Select distinct $a_1, a_2, , a_n$ from $r_1, r_2, , r_m$ ... $\Pi_{a_1, a_2, a_n} \sigma_p \left(r_1 \cap r_2 \cap \dots \cap r_m \right)$

answered in Databases Jul 20, 2015

7.2k views

5 answers

2

GATE CSE 2003 | Question: 29, ISRO2009-73
Which of the following scenarios may lead to an irrecoverable error in a database system? A transaction writes a data item after it is read by an uncommitted transaction A transaction reads a data item after it is read by an ... it is written by a committed transaction A transaction reads a data item after it is written by an uncommitted transaction

answered in Databases Jul 20, 2015

12.3k views

7 answers

3

GATE CSE 2003 | Question: 28
Which of the following functionality must be implemented by a transport protocol over and above the network protocol? Recovery from packet losses Detection of duplicate packets Packet delivery in the correct order End to end connectivity

answered in Computer Networks Jul 20, 2015

10.7k views

4 answers

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GATE CSE 2003 | Question: 27
Which of the following assertions is FALSE about the Internet Protocol (IP)? It is possible for a computer to have multiple IP addresses IP packets from the same source to the same destination can take different routes in the network IP ensures that a ... set the route of an outgoing packets; the route is determined only by the routing tables in the routers on the way

answered in Computer Networks Jul 20, 2015

12.3k views

6 answers

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GATE CSE 2003 | Question: 26
In a system with $\text{32 bit}$ virtual addresses and $\text{1 KB}$ page size, use of one-level page tables for virtual to physical address translation is not practical because of the large amount of internal ... large amount of external fragmentation the large memory overhead in maintaining page tables the large computation overhead in the translation process

answered in Operating System Jul 20, 2015

12.8k views

7 answers

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GATE CSE 2015 Set 3 | Question: 7
Consider the following C program segment. # include <stdio.h> int main() { char s1[7] = "1234", *p; p = s1 + 2; *p = '0'; printf("%s", s1); } What will be printed by the program? $12$ $120400$ $1204$ $1034$

answered in Programming Jul 20, 2015

10.8k views

8 answers

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GATE CSE 2015 Set 3 | Question: 6
Consider a CSMA/CD network that transmits data at a rate of $100\;\textsf{Mbps}\; (10^8\;\text{bits}$ per second) over a $1\;\textsf{km}$ (kilometre) cable with no repeaters. If the minimum frame size required for this network is $1250\;\text{bytes},$ What is the signal speed $\textsf{(km/sec)}$ in the cable? $8000$ $10000$ $16000$ $20000$

answered in Computer Networks Jul 20, 2015

10.7k views

5 answers

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GATE CSE 2015 Set 3 | Question: 4
Consider the equality $\displaystyle{\sum_{i=0}^n} i^3 = X$ and the following choices for $X$: $\Theta(n^4)$ $\Theta(n^5)$ $O(n^5)$ $\Omega(n^3)$ The equality above remains correct if $X$ is replaced by Only I Only II I or III or IV but not II II or III or IV but not I

answered in Algorithms Jul 20, 2015

12.4k views

3 answers

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GATE CSE 2015 Set 3 | Question: 3
Consider the following relation Cinema($\textit{theater, address, capacity}$) Which of the following options will be needed at the end of the SQL query SELECT P1.address FROM Cinema P1 such that it always finds the addresses of theaters with maximum ... (select max(P2.capacity) from Cinema P2) WHERE P1.capacity > Any (select max(P2.capacity) from Cinema P2)

answered in Databases Jul 20, 2015

8.9k views

3 answers

10

GATE CSE 2015 Set 3 | Question: 2
Let $\#$ be the binary operator defined as $X\#Y = X'+Y'$ where $X$ and $Y$ are Boolean variables. Consider the following two statements. $(S_1)$ $(P\#Q)\#R = P\#(Q\#R)$ $(S_2)$ $Q\#R = (R\#Q)$ Which are the following is/are true for the Boolean ... $P, Q$ and $R$? Only $S_1$ is true Only $S_2$ is true Both $S_1$ and $S_2$ are true Neither $S_1$ nor $S_2$ are true

answered in Set Theory & Algebra Jul 20, 2015

4.1k views

4 answers

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GATE CSE 2015 Set 3 | Question: GA-10
The exports and imports (in crores of $Rs$.) of a country from the year $2000$ to $2007$ are given in the following bar chart. In which year is the combined percentage increase in imports and exports the highest?

commented in Quantitative Aptitude Jul 20, 2015

4.3k views

2 answers

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GATE CSE 2015 Set 3 | Question: GA-9
Most experts feel that in spite of possessing all the technical skills required to be a batsman of the highest order, he is unlikely to be so due to lack of requisite temperament. He was guilty of throwing away his wicket several time after ... starts count. Improving his technical skills will guarantee success. iii and iv ii and iii i, ii and iii ii only

answered in Verbal Aptitude Jul 20, 2015

2.0k views

3 answers

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GATE CSE 2015 Set 3 | Question: GA-8
Choose the most appropriate equation for the function drawn as thick line, in the plot below. $x=y-|y|$ $x=-(y-|y|)$ $x=y+|y|$ $x=-(y+|y|)$

answered in Quantitative Aptitude Jul 20, 2015

3.5k views

7 answers

14

GATE CSE 2015 Set 1 | Question: 55
The least number of temporary variables required to create a three-address code in static single assignment form for the expression $q + r / 3 + s - t * 5 + u * v/w$ is__________________.

answered in Compiler Design Jul 20, 2015

24.3k views

2 answers

15

explain
If R and S are two relation in BCNF the natural join of R and S is also in BCNF. above statement true or false.??

answered in Databases Jul 20, 2015

870 views

5 answers

16

GATE CSE 2015 Set 3 | Question: 1
The maximum number of processes that can be in $\textit{Ready}$ state for a computer system with $n$ CPUs is : $n$ $n^2$ $2^n$ Independent of $n$

answered in Operating System Jul 13, 2015

24.9k views

8 answers

17

GATE CSE 2015 Set 3 | Question: 13
While inserting the elements $71, 65, 84, 69, 67, 83$ in an empty binary search tree (BST) in the sequence shown, the element in the lowest level is $65$ $67$ $69$ $83$

answered in DS Jul 13, 2015

5.7k views

6 answers

18

GATE CSE 2015 Set 3 | Question: 12
The result evaluating the postfix expression $10 \ 5 + 60 \ 6 / * 8 -$ is $284$ $213$ $142$ $71$

answered in DS Jul 13, 2015

10.9k views

11 answers

19

GATE CSE 2015 Set 3 | Question: 25
Consider a binary tree T that has $200$ leaf nodes. Then the number of nodes in T that have exactly two children are ______.

answered in DS Jul 13, 2015

17.4k views

5 answers

20

GATE CSE 2015 Set 3 | Question: 34
For the processes listed in the following table, which of the following scheduling schemes will give the lowest average turnaround time? ... First Come First Serve Non-preemptive Shortest job first Shortest Remaining Time Round Robin with Quantum value two

answered in Operating System Jul 13, 2015

15.0k views

3 answers

21

GATE CSE 2015 Set 3 | Question: 35
Consider the equation $(43)_x = (y3)_8$ where $x$ and $y$ are unknown. The number of possible solutions is _____

answered in Digital Logic Jul 12, 2015

7.6k views

2 answers

22

UGC NET CSE | June 2013 | Part 3 | Question: 55
Given code word $1110001010$ is to be transmitted with even parity check bit. The encoded word to be transmitted for this code is $11100010101$ $11100010100$ $1110001010$ $111000101$

asked in Computer Networks Jul 12, 2015

3.0k views

3 answers

23

UGC NET CSE | December 2013 | Part 2 | Question: 43
Which of the following is widely used inside the telephone system for long-haul data traffic? ISDN ATM Frame Relay ISTN

answered in Computer Networks Jul 12, 2015

2.5k views

12 answers

24

GATE CSE 2015 Set 2 | Question: 10
A binary tree T has $20$ leaves. The number of nodes in T having two children is ______.

answered in DS Jul 12, 2015

24.3k views

3 answers

25

GATE CSE 2015 Set 2 | Question: 12
Consider the basic COCOMO model where $E$ is the effort applied in person-months, $D$ is the development time in chronological months, $KLOC$ is the estimated number of delivered lines of code (in thousands) and $a_b, b_b, c_b, d_b$ have their useful meanings. The basic ... $E=a_b exp(b_b), D=c_b (KLOC) exp(d_b)$ $E=a_b exp(d_b), D=c_b (KLOC) exp(b_b)$

answered in IS&Software Engineering Jul 12, 2015

3.0k views

4 answers

26

GATE CSE 2015 Set 2 | Question: 18
The cardinality of the power set of $\{0, 1, 2, \dots , 10\}$ is _______

answered in Set Theory & Algebra Jul 12, 2015

4.0k views

4 answers

27

GATE CSE 2015 Set 2 | Question: 20
Identify the correct order in which a server process must invoke the function calls accept, bind, listen, and recv according to UNIX socket API. $\textsf{listen, accept, bind, recv}$ $\textsf{bind, listen, accept, recv}$ $\textsf{bind, accept, listen, recv}$ $\textsf{accept, listen, bind, recv}$

answered in Computer Networks Jul 12, 2015

7.5k views

4 answers

28

GATE CSE 2015 Set 2 | Question: 24
Assume that for a certain processor, a read request takes $50\:\text{nanoseconds}$ on a cache miss and $5\:\text{nanoseconds}$ on a cache hit. Suppose while running a program, it was observed that $80\%$ of the processor's read requests result in a cache hit. The average read access time in nanoseconds is ______.

answered in CO and Architecture Jul 12, 2015

11.2k views

3 answers

29

GATE CSE 2015 Set 2 | Question: 36
Given below are some algorithms, and some algorithm design paradigms. ... $\text{1-iii, 2-ii, 3-i, 4-iv}$ $\text{1-iii, 2-ii, 3-i, 4-v}$

answered in Algorithms Jul 12, 2015

5.3k views

6 answers

30

GATE CSE 2015 Set 1 | Question: 22
Which of the following fields of an IP header is NOT modified by a typical IP router? Check sum Source address Time to Live (TTL) Length

answered in Computer Networks Jul 12, 2015

8.0k views