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1

which of the following is true..??
Consider the following statements: S1 : Increasing the number of page frames allocated to a process sometime increase the page fault rate in FIFO page replacement policy irrespective of page reference string. S2 : It is not necessary to have loader everytime in main memory. ... S1 is true B) Only S2 is true C) Both S1 and S2 are true D) Neither S1 and S2 are true

commented in Operating System Feb 7, 2017

2.6k views

1 answer

2

Ethernet
In standard ethernet with transmission rate of 20 Mbps, the length of the cable is 2500 m and the size of a frame is 1024 bits. The propagation speed of a signal in a cable is $2 \times 10^8$ m/s. The percentage of the time medium is occupied but not used by a station is?

commented in Computer Networks Feb 7, 2017

2.6k views

1 answer

3

RTT
A) What is Round Trip Time ? B) Explain R.T.T. clearly for Stop n Wait , Go-Back-N , Selective Repeat ARQ .

answer selected in Computer Networks Feb 5, 2017

2.8k views

2 answers

4

Theory of Computatiion
How is b*a* ⋂ a*b* = a* ⋃ b*??

answered in Theory of Computation Feb 4, 2017

286 views

2 answers

5

MadeEasy Subject Test: Operating System - Process Synchronization
Reader Writer's problem How is deadlock possible in this?

answer selected in Operating System Feb 4, 2017

843 views

1 answer

6

test series
5's complement of a given number (43)base8,when it is expressed with base 5?

commented in Digital Logic Feb 4, 2017

694 views

1 answer

7

starvation
I'm looking for an explanation for this Since no bounded waiting means a process waits while others can enter the system hence that process is starving and starvation freedom implies no process should starve for a long amount of time (not necessarily infinite) ... this not true no starvation => bounded waiting I think I might be missing something so can you please highlight that

commented in Operating System Feb 4, 2017

1.4k views

0 answers

8

DBMS ERD DOUBT
i think answer is 4. given ans. is 3 pls confirm.

commented in Databases Feb 4, 2017

1.4k views

1 answer

9

database doubt
if two entities A and B are connected using total participation with relation R then minimum number of tables required in relational model is?

commented in Databases Feb 4, 2017

738 views

2 answers

10

Group Theory discrete maths
A={1,2,3,4,5,6} Given that set A is a group with respect to multiplication mod 7.Is A a cyclic group?If yes,identify the generators. Is there any theorem that i cana pply here to solve without building operation table?

commented in Set Theory & Algebra Feb 3, 2017

3.1k views

2 answers

11

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 in Databases Feb 1, 2017

2.6k views

1 answer

12

Compiler design
G : Grammar S1 : Every LALR(1) G is LR(1). S2 : Every LR(1) G is LALR(1). S3: Some LL(1) is Regular. A. TFF B.TFT C. TTF D. FTT E. NONE

answer selected in Compiler Design Feb 1, 2017

320 views

0 answers

13

comment edited in Theory of Computation Feb 1, 2017

272 views

2 answers

14

compliment in hasse diagram

commented in Mathematical Logic Jan 31, 2017

2.4k views

1 answer

15

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

commented in Digital Logic Jan 31, 2017

1.2k views

1 answer

16

ME test
Which of the following is correct? A) Every Distributive Lattice is Complimented Lattice B) Every Complimented Lattice is Distributive Lattice C) Every Distributive Lattice is Bounded Lattice D) None of these

answered in Set Theory & Algebra Jan 31, 2017

786 views

1 answer

17

slow start doubt

commented in Computer Networks Jan 30, 2017

563 views

0 answers

18

Made easy Linear algebra
Is it necessary that the lower triangular matrix should contain 1 as leading diagonal in LU decomposition? In the solution to this problem they have taken the triangular matrix diagonal as 1.

commented in Linear Algebra Jan 30, 2017

434 views

0 answers

19

commented in Computer Networks Jan 30, 2017

834 views

0 answers

20

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 in Theory of Computation Jan 30, 2017

778 views

1 answer

21

ace mock 6 max size of packet

commented in Computer Networks Jan 30, 2017

406 views

2 answers

22

Testbook Test Series: Theory Of Computation - Identify Class Language
# i confirm answer plz check???

answer selected in Theory of Computation Jan 30, 2017

922 views

1 answer

23

ACE test series

comment edited in Theory of Computation Jan 27, 2017

912 views

2 answers

24

Operating System Concepts, 7th Edition, Q12.2
Suppose that a disk drive has 5,000 cylinders, numbered 0 to 4999. The drive is currently serving a request at cylinder 143, and the previous request was at cylinder 125. The queue of pending requests, in FIFO order, is: 86,1470, 913 ... , what is the total distance (in cylinders) that the disk arm moves to satisfy all the pending requests for C-SCAN?

answer edited in Operating System Jan 27, 2017

5.7k views

5 answers

25

UGC NET CSE | January 2017 | Part 3 | Question: 2
Which of the following is incorrect for virtual memory? Large programs can be written More I/O is required More addressable memory available Faster and easy swapping of process

comment edited in Operating System Jan 27, 2017

1.8k views

1 answer

26

NET Jan17 paper-3 Q19
Q19 Which of the following are not regular A)Strings of even number of a's. B)Strings of a's , whose length is a prime number. C)Set of all palindromes made up of a's and b's. D)trings of a's , whose length is a perfect square. 1) A and B only 2) A,B,C only 3) B,C and D only 4) B and D only

answered in Theory of Computation Jan 26, 2017

1.6k views

1 answer

27

toc - doubt
how (i) is true???

answer selected in Theory of Computation Jan 26, 2017

713 views

0 answers

28

Ethernet
according to standards of ethernet minimum data size in LAN is 64bytes in some question by solving L=2Tp*B, i got L value as 60bytes. now answer for this question shud be 60bytes according to the answer or 64 bytes according to standards?

comment edited in Computer Networks Jan 25, 2017

1.1k views

1 answer

29

testbook compiler

answer selected in Compiler Design Jan 25, 2017

513 views

0 answers

30

repeted values in Relation Table
I want to know as we know codd's rule says that no two tuples in a relation should be same. i.e we can not have 2 tuples with same values in clm feilds. now to maintain these constraints, we choose to have some key over the relation ... having mutiset values, (as there are no keys present), how Dbms do indexing to retrive records? someone help me on this pls.

comment edited in Databases Jan 25, 2017

1.5k views