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18 votes

1

GATE CSE 2003 | Question: 79
A processor uses $\text{2-level}$ page tables for virtual to physical address translation. Page tables for both levels are stored in the main memory. Virtual and physical addresses are both $32$ bits wide. The memory is byte addressable. For virtual to physical address translation, ... tables of this process is $\text{8 KB}$ $\text{12 KB}$ $\text{16 KB}$ $\text{20 KB}$

answered in Operating System Sep 27, 2020

23.8k views

0 votes

2

Morris Mano Edition 3 Exercise 1 Question 12 (Page No. 33)
Noting that $3 ^2 = 9$, Formulate a simple procedure for converting base-3 numbers to base-9 directly.use the procedure to convert the $(2110201102220) _3$ to base-9.

answered in Digital Logic Aug 2, 2020

3.7k views

9 votes

3

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'))

answered in Databases Jul 19, 2020

2.0k views

22 votes

4

GATE CSE 2012 | Question: 50
Consider the following relations $A, B$ and $C:$ ... is the same as that of $A$. $(A\cup B)\bowtie _{A.Id > 40 \vee C.Id < 15} C$ $7$ $4$ $5$ $9$

answered in Databases Jul 16, 2020

29.2k views

0 votes

5

MadeEasy Subject Test: CO & Architecture - Cache Memory
A cache memory is 30 times faster than main memory (MM) and 50% of the time cache is referred for the execution of instruction. The performance is gained by introducing this cache is ________. What I did EMAT = 0.5(M/30)+0.5(M/30+M) = 32M/60 speed up= (M)/32M/60) =60/32=1.875 answer given is 1.90-1.97 (using amdhal’s law)

answered in CO and Architecture Jan 13, 2019

906 views

1 vote

6

gatebook CN 2
A router is emitting out IP packets whose total length (data plus header) is 1024 bytes.Assuming that packets live for 10 sec, what is the maximum line speed the router can operate at without danger of cycling through the IP datagram identification number space? A. 53.6 Mbps B. 3.5 Tbps C. 5.36 Mbps D. 35 Tbps

answered in Computer Networks Jan 1, 2019

234 views

7 votes

7

GATE CSE 2000 | Question: 2.4
A polynomial $p(x)$ satisfies the following: $p(1) = p(3) = p(5) = 1$ $p(2) = p(4) = -1$ The minimum degree of such a polynomial is $1$ $2$ $3$ $4$

answered in Set Theory & Algebra Jan 1, 2019

7.7k views

0 votes

8

self doubt
L1 $\cap$ L2 = $\phi$ This problem is decidable or undecidable in case of CSL, REL, & REnL ????

answered in Theory of Computation Dec 27, 2018

301 views

16 votes

9

GATE CSE 1999 | Question: 2.1
Consider two events $E_1$ and $E_2$ such that probability of $E_1$, $P_r[E_1]=\frac{1}{2}$, probability of $E_2$, $P_r[E_{2}]=\frac{1}{3}$, and probability of $E_1$, and $E_2$, $P_r[E_1 \: and \: E_2] = \frac{1}{5}$. Which of the ... Events $E_1$ and $E_2$ are independent Events $E_1$ and $E_2$ are not independent $P_r \left[{E_1}\mid{E_2} \right] = \frac{4}{5}$

answered in Probability Dec 15, 2018

4.1k views

1 vote

10

GATE CSE 2008 | Question: 61
Choose the correct option to fill $?1$ and $?2$ so that the program below prints an input string in reverse order. Assume that the input string is terminated by a new line character. void reverse(void) { int c; if(?1) reverse(); ?2 } main() { printf("Enter text"); ... $?2$ is $putchar(c);$ $?1$ is $((c = getchar() ) != '\setminus n')$ $?2$ is $putchar(c);$

answered in Programming in C Dec 14, 2018

7.9k views

0 votes

11

answered in Programming in C Dec 13, 2018

514 views

1 vote

12

Which of the following condition is sufficient to detect cycle in a directed graph?
Which of the following condition is sufficient to detect cycle in a directed graph? (A) There is an edge from currently being visited node to an already visited node. (B) There is an edge from currently being visited node to ... seen twice in DFS. (D) None of the bove here option B is right, but why not option A?

answered in Algorithms Dec 12, 2018

13.4k views

3 votes

13

Doubt : ACE OTS 1
Prove S1 without using venn -diagram ( using boolean algebra )

answered in Set Theory & Algebra Dec 11, 2018

417 views

2 votes

14

Static Single Assignment form
Consider the following code generation: a=b+c; c=a+x; d=b+c; b=a+x; The minimum no. of total variables required to convert the above code to static single assignment form is______

answered in Compiler Design Dec 10, 2018

2.9k views

0 votes

15

Computer Organization
What is a TRAP instruction and how it is used?

answered in CO and Architecture Dec 10, 2018

454 views

1 vote

16

made easy test series

answered in Compiler Design Dec 10, 2018

523 views

4 votes

17

DCFL Grammar
Equality of languages in DCFL decidable or not???

answered in Theory of Computation Dec 10, 2018

2.2k views

40 votes

18

GATE CSE 1993 | Question: 01.1
The eigen vector $(s)$ of the matrix $\begin{bmatrix} 0 &0 &\alpha\\ 0 &0 &0\\ 0 &0 &0 \end{bmatrix},\alpha \neq 0$ is (are) $(0,0,\alpha)$ $(\alpha,0,0)$ $(0,0,1)$ $(0,\alpha,0)$

answered in Linear Algebra Dec 10, 2018

11.5k views

1 vote

19

MadeEasy Test Series: Operating System - Prcocess
Consider the following statements: S1: Long term scheduler sends the process from ready state to running state. S2: Medium term scheduler controls the degree of multiprogramming. which of the following is correct? Only S1 Only S2 Both S1 & S2 Neither S1 & S2

answered in Operating System Dec 9, 2018

3.1k views

1 vote

20

Self doubt
Predictive parser and non recursive parser are same or non recursive parser is a type of predictive parser. If sure then answer.

answered in Compiler Design Dec 9, 2018

1.8k views

0 votes

21

ACE Testseries
In a connected simple graph with 30 edges the maximum number of vertices possible are

answered in Graph Theory Nov 29, 2018

1.3k views

1 vote

22

Gateforum Test Series: Computer Networks - Lan Technologies
Let cluster of stations share 48kbps of pure aloha channel. Every station outputs frame of length 1024 bit in every 50 seconds. Then what is the maximum value of number of stations?

answered in Computer Networks Nov 28, 2018

708 views

1 vote

23

Application layer protocol
Which of the following Application Layer Protocol cannot be used between mail server and receiver’s client machine? SMTP HTTP POP3 IMAP4

answered in Computer Networks Nov 28, 2018

2.6k views

0 votes

24

answered in Digital Logic Nov 16, 2018

272 views

2 votes

25

GATE CSE 2014 Set 3 | Question: 31
A system contains three programs and each requires three tape units for its operation. The minimum number of tape units which the system must have such that deadlocks never arise is _________.

answered in Operating System Nov 14, 2018

13.5k views

0 votes

26

SQL self doubt
In this question:- https://gateoverflow.in/8225/gate2015-1-27 I am not understanding how the query is returning 2 . I think DISTINCT must be there to give the correct answer. Can you give some logical explanation?

answered in Databases Nov 12, 2018

407 views

1 vote

27

GATE CSE 2011 | Question: 14
The simplified SOP (Sum of Product) from the Boolean expression $(P + \bar{Q} + \bar{R}) . (P + \bar{Q} + R) . (P + Q +\bar{R})$ is $(\bar{P}.Q+\bar{R})$ $(P+\bar{Q}.\bar{R})$ $(\bar{P}.Q+R)$ $(P.Q+R)$

answered in Digital Logic Nov 5, 2018

9.6k views

1 vote

28

ibpsso2012
data security include 1 hardware failure 2 privacy invasion 3 fraudulent manipulation of data 4 all of these

answered in Computer Networks Nov 2, 2018

157 views

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