Recent activity by Dulqar

2 answers

1

error in the code
why is it showing error?? #include <stdio.h> int main() { extern int i; i=20; printf("%d",i); }

answered Mar 24, 2017 in Programming | 201 views

3 answers

2

How to make user authenticated Internet Acceess
I wanted to convert my home modem to coffee shop and give internet to my customers . But due to security reasons users should register their mobile before they get access to inernet. How can I build this project ? Where should I start with ? Currently i have got D-Link modem

commented Mar 23, 2017 in Pure Web Development | 293 views

0 answers

3

How to Prepare SOP for IIITH - PGEEE
How to prepare SOP (Statement Of Purpose ) ? What are the important points to be taken in mind while preparing SOP

asked Mar 13, 2017 in IIITH-PGEE | 722 views

1 answer

4

Does anyone having Precious Questions of IIIT Hyderbad PGEE ?
If anyone has got previous year question papers or link pls do share

answer selected Mar 13, 2017 in IIITH-PGEE | 1.7k views

1 answer

5

COA pipeline doubt
I) In a 4 stage pipeline processor, if each stage takes 4 cycles then what is CPI in case of successfull pipeline??? II) In a 4 stage pipeline processor, if each stage takes 2,3,4,5 cycles respectively then what is CPI in case ... are branch imstructions and branch address is available in 3rd stage then what should be branch pelanty??(In both the implementations mentioned above)

commented Feb 5, 2017 in CO and Architecture | 298 views

1 answer

6

Pipeline
The following sequence of instruction is executed in a basic 5 stage pipelined processor (S1, S2, S3, S4, S5). Assume that data dependency present in the program is resolved by operand forwarding techniques. Load instruction output present in 4th stage ALU instruction output ... What is the number of instructions must be inserted to achieve CPI = 1 by using operand forwarding.

commented Feb 5, 2017 in CO and Architecture | 312 views

2 answers

7

Self framed
Is the following schedule view serializable? T1 T2 T3 R(A) R(A) W(A) W(A) W(A)

commented Feb 5, 2017 in Databases | 117 views

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8

Numbers Divisible by 15
in a set of odd numbers less than 500, What is the total number of numbers divisible by 15?

commented Feb 4, 2017 in Numerical Ability | 383 views

1 answer

9

made easy
In a set of 500 first odd natural numbers. The total number divisible by 3 or 5 are

commented Feb 3, 2017 in Numerical Ability | 294 views

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10

Topological sorting
My ques. is not the no. of topological sort as i have computed it myself. My problem is can someone please telll me a efficient approach as tree method is taking a lot of time here, like by use of combinatorics, can we find it easily, i.e in less time. and if possible, pls provide general approach apart from tree method.

commented Feb 3, 2017 in Algorithms | 676 views

1 answer

11

Union of Two Language
WHat is the union of the following wo languages L=0*1+0+1* ∪ 10*1 L=001 U 0*1*

asked Feb 3, 2017 in Theory of Computation | 96 views

1 answer

12

Stacks and Permutation
A stack A has 4 entries as following sequence a,b,c,d and stack B is empty. An entry popped out of stack A can be printed or pushed to stack B. An entry popped out of stack B can only be printed. Then the number of possible permutations that the entries can be printed will be ? Stack A Stack B = empty a(TOP) b c d

commented Feb 3, 2017 in DS | 750 views

2 answers

13

MADE EASY TEST SERIES
Consider languages L1 and L2 over alphabet Σ = {a, b}. L1 is known to be a context-free language. L2 = {w|w is prefix of w' ∈ L1} Which of the following is true ? A> L2 need not be CFL B> L2 will be regular C> L2 will be CFL D> None of the above

commented Feb 3, 2017 in Theory of Computation | 227 views

2 answers

14

NPTEL-Internetwork Security-Week2-Quiz-2-Q3
Q3: What kind of ciphers Electronic Codebook (ECB) mode and Cipher Block Chaining (CBC) mode are (A) Block cipher (B) Stream cipher (C) Field cipher (D) both (A) and (B)

commented Feb 3, 2017 in Computer Networks | 266 views

1 answer

15

NPTEL-Design and Analysis of Algorithms-Week2-Quiz-2-Q3
Suppose we want to sort an array in ascending order and we implement quicksort so that we always choose the last element in the array as the pivot element. Assume that the input is a permutation of {1, 2, , n}. Which of the following ... {1, 2, . . . , n} with all odd numbers in ascending order followed by all even numbers in random order.

answer selected Feb 3, 2017 in Algorithms | 1.7k views

1 answer

16

NPTEL-Internetwork Security-Week2-Quiz-2-Q6
Q6. ___________Data Encryption Standard (DES) was designed to increase the size of the Data Encryption Standard (DES) key. (A) Double (B) Triple (C) Quadruple (D) none of these

commented Feb 3, 2017 in Computer Networks | 392 views

1 answer

17

NPTEL-Operating System-Week1-Quiz-2-Q14
State True or False . Please explain in 2 or 3 sentences Temporal locality states if a page is accessed, then there is a high chance that the nearby pages will be accessed.

asked Feb 3, 2017 in Operating System | 218 views

1 answer

18

NPTEL-Operating System,-Week2-Quiz-2-Q5
In the Contiguous allocation for disk blocks, files cannot grow dynamically because _______ The next block could be occupied by another file The scheme does not allow files to grow (by design itself) (No answer is correct because files can grow) The disk does not have enough space I think both 1 and 2 are correct . What do you say ?

commented Feb 3, 2017 in Operating System | 243 views

1 answer

19

NPTEL-Design and Analysis of Algorithms-Week1-Quiz-2-Q12
State true or false. When a user encounters a page fault, 1) The user application informs the OS, 2) User uses API calls to the hardware Memory Management unit, 3) Memory Management unit brings the page from hard disk to main memory. Is Statement 2 correct ?

commented Feb 3, 2017 in Operating System | 546 views

1 answer

20

self doubt
If there are no attributes in common between two relations R and S then, what should be the result of (R natural join S)? 1) R x S 2) $\phi$ I think option 2 because of following definition from Korth:

commented Feb 3, 2017 in Databases | 86 views

1 answer

21

C program
What is the error in the following code . Please do correct them #include <stdio.h> int main () { char *x[5] = {"raju","ramu","tinu","ben","ali"}; printf("%s\n",(x[2][0]) ); return 0; }

comment edited Feb 3, 2017 in Programming | 102 views

2 answers

22

Mathematics
In how many different ways 10 identical ball can be distributed among 3 children, if each receives atleast 2 balls and no more than 4 balls?

commented Feb 3, 2017 in Combinatory | 485 views

2 answers

23

GATE2014 EC-1: GA-1
Choose the most appropriate phrase from the options given below to complete the following sentence. The aircraft __________ take off as soon as its flight plan was filed. Is allowed to Will be allowed to Was allowed to Has been allowed to

commented Feb 2, 2017 in Verbal Ability | 406 views

3 answers

24

GATE2013 CE: GA-5
Select the pair that best expresses a relationship similar to that expressed in the pair: Medicine: Health Science: Experiment Wealth: Peace Education: Knowledge Money: Happiness

commented Feb 1, 2017 in Verbal Ability | 766 views

4 answers

25

GATE2013 CE: GA-2
$\underset{\text{I}}{\underline{\text{The professor}}}$ $\underset{\text{II}}{\underline{\text{ordered to}}}$ $\underset{\text{III}}{\underline{\text{the students to go}}}$ $\underset{\text{IV}}{\underline{\text{out of the class.}}}$ Which of the above underlined parts of the sentence is grammatically incorrect? I II III IV

commented Feb 1, 2017 in Verbal Ability | 989 views

2 answers

26

GATE2015 ME-3: GA-2
Fill in the blank with the correct idiom/phrase. That boy from the town was a ____________ in the sleepy village. dog out of herd sheep from the heap fish out of water bird from the flock

commented Feb 1, 2017 in Verbal Ability | 1.6k views

3 answers

27

GATE2015-1-GA-2
Which of the following options is the closest in meaning of the sentence below? She enjoyed herself immensely at the party. She had a terrible time at the party She had a horrible time at the party She had a terrific time at the party She had a terrifying time at the party

commented Feb 1, 2017 in Verbal Ability | 1.1k views

2 answers

28

GATE2011-58
Choose the most appropriate word(s) from the options given below to complete the following sentence. I contemplated _________ Singapore for my vacation but decided against it. to visit having to visit visiting for a visit

commented Feb 1, 2017 in Verbal Ability | 1.1k views

2 answers

29

DBMS normalization concept problem
R(ABCDEF) FD set{ AB->CDE. CD->E, E->C } False statement? A. 2 NF decomposition possible B.3 NF decomposition possible C.BCNF decomposition possible D. ALL

commented Feb 1, 2017 in Databases | 413 views

2 answers

30

Higher normal form decomposition
$X$ is an entity set. $E$ and $F$ are multivalued attributes. How many minimum tables which satisfy 1NF ? How many minimum tables which satisfy 2NF ? How many minimum tables which satisfy 3NF ? How many minimum tables which satisfy BCNF ? How many minimum tables which satisfy 4NF ?

commented Feb 1, 2017 in Databases | 796 views

1 answer

31

Dependency Preserving or Not ?
R(ABCD) F={ A→B, B→C, C→D, D→A } Now Decompose this into D={ AB, BC, CD } Dependency is preserved or Not ? Source : http://www.gatecrack.in/following-decomposition-dependency-preserving-not/

commented Feb 1, 2017 in Databases | 121 views

4 answers

32

Determine the highest possible normal form of the given relation?
Consider the relation R(Name,courseNO,rolNO,grade) name,courseno ->grade rollno,courseno->grade name->rollno rollno->name Given answer as it is 3NF . But Im getting 1NF. is it correct ?

asked Feb 1, 2017 in Computer Networks | 247 views

1 answer

33

2s complement Notation
What is the difference betwen 2s complent of a number and 2s complement representation of a number .

commented Jan 31, 2017 in Digital Logic | 480 views

0 answers

34

Self Doubt
By seeing a grammar I can say it is ambiguous or not. But How can I say it is inherently ambiguous or not.?

commented Jan 30, 2017 in Theory of Computation | 133 views

1 answer

35

NPTEL-Operating System-Week2-Quiz-Q9
Creating many threads is advisable than creating many processes. Which of the statements below do not support this claim? Threads can share the address space and global data. None of the options. Programmer should ensure that it is ok to share data between two threads. Context switching is faster for threads as compared to Processes

asked Jan 30, 2017 in Operating System | 159 views

0 answers

36

NPTEL-Operating System,-Week2-Quiz-1-Q2
State true or false. With Reason In a Micro-Kernel based OS, different modules communicate with each other using message passing. This is a secure way to enable communication. In a Modular OS, kernel modules can directly call any other ... . In a Modular OS, kernel modules can directly call any other module. This, however, suffers from efficiency issues.

asked Jan 30, 2017 in Operating System | 359 views

2 answers

37

NPTEL-Operating Syste,-Week2-Quiz-1-Q1
Which of the following statements about Softwares is false? System Softwares provide an API that can be accessed by the Application Softwares. DBMS, Compilers, Assemblers are examples of System Software. OS Interface is used by the System Softwares to interact with the hardware/OS. System Softwares can control and coordinate the use of hardware.

asked Jan 30, 2017 in Operating System | 383 views

4 answers

38

GATE2007-IT-66
Consider the following two transactions : T1 and T2. T1 : read (A); T2 : read (B); read (B); read (A); if A = 0 then B ← B + 1; if B ≠ 0 then A ← A - 1; write (B); write (A); Which of the following schemes, using shared and exclusive locks, satisfy the requirements for ... ← B + 1; then A ← A - 1; write (B); write (A); unlock (A); unlock (A); unlock (B); unlock (B); commit; commit;

comment reshown Jan 27, 2017 in Databases | 3.9k views

1 answer

39

Difference Between
Difference between Conflict Serial schedule and Conflict Serializable Scheule

asked Jan 27, 2017 in Databases | 40 views

0 answers

40

Minimum Spanning Tree
Show the different minimum spanning Trees Possible in each of the following Algorithms Prims Algorithm Kruskal

asked Jan 26, 2017 in Algorithms | 152 views