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Questions by saxena0612

4 votes
0 answers
1
Combinatorics(Bookshelf_Problem)
Consider a bookshelf with $15$ books placed in sequential manner. In how many ways one can choose a set of $5$ books from this shelf so that no $2$ books in this set should be adjacently positioned at the time of picking $?$
asked in Combinatory Jan 17, 2018
306 views
  • engineering-mathematics
2 votes
1 answer
2
Semaphores_Implemenation
Consider this implementation of semaphores b/w these $2$ processes : PROCESS-1 : V(s) CS P(S) PROCESS-2: P(s) CS V(S) Assume that semaphore "s" is intialized to $0$ at initial stage . Comment on these statments : Process -$1$ can starve$.$ Process=$2$ can starve$.$
asked in Operating System Jan 16, 2018
220 views
  • semaphore
1 vote
1 answer
3
Probability_Balls_problem
There are $2$ boxes, $1$ containing $10$ red balls and the other containing $10$ green balls. You are allowed to move the balls between the boxes so that when you choose a box at random and a ball at random from the chosen box, the probability of getting a red ball is maximized. What is the maximized Probability?
asked in Probability Jan 15, 2018
515 views
  • probability
1 vote
0 answers
4
Offset Displacement
If A $4$ B long PC-relative branch instruction is stored at location in memory at $(920)_{10}$. The branch is located at $(724)_{10}$. Then Signed displacement present in instruction is $?$ Mention you answer in decimal please!
asked in CO and Architecture Jan 15, 2018
557 views
  • co-and-architecture
1 vote
0 answers
5
Probability Problem
Suppose we have 2 bags. Bag 1 contains 3 red and 7 green balls. Bag 2 contains 4 red and 8 green balls. A person tosses a coin and if it is heads goes to bag 1 and draws a ball. If it is tails, he goes to bag 2 and draws a ball. Given that the ball draw is red, then what is probability that it came from bag 1? $0.317$ or $0.4737 \ ?$
asked in Mathematical Logic Jan 11, 2018
869 views
  • probability
  • engineering-mathematics
3 votes
2 answers
6
Pipeline Efficiency
The speed up of a pipelined processor is $5.4,$ operating at $2$ GHZ frequency with efficiency $82\%$. What will be no. of stages available in this processor$?$
asked in CO and Architecture Jan 10, 2018
567 views
  • co-and-architecture
  • pipelining
2 votes
0 answers
7
Turing Computatbe Function
Which of the following functions are Turing Machine computable? $1) \ n \times (n-1) \times (n-2) ......1$ $2)\{log_2n\}$ $3)\Large2^{2^n}$
asked in Theory of Computation Jan 9, 2018
434 views
  • theory-of-computation
2 votes
1 answer
8
TOC - Regularity
Which of the following languages are regular?
asked in Theory of Computation Jan 9, 2018
438 views
  • theory-of-computation
  • regular-language
2 votes
1 answer
9
TOC - Language Interpretation
$L_1=\{a^nb^nc^n\ |n>=0\}$ $L_2=\{a^{2n}b^{2n}c^{2n}\ |n>=0\}$ $L_3=\{ a^{2n}b^{2n}c^n\ |n>=0\}$ Options : $1)\ L_2 \subseteq L_1 \&L_2 \subseteq L_3 $ $2)\ L_2 \subseteq L_1 \&L_2 \not\subset L_3 $
asked in Theory of Computation Jan 9, 2018
332 views
  • theory-of-computation
  • identify-class-language
1 vote
0 answers
10
Addressing Sectors
I am getting $ \Large1374845$ Is it right? Please explain your logic if you got other from this !
asked in CO and Architecture Jan 5, 2018
257 views
  • co-and-architecture
5 votes
1 answer
11
Questions Doubt
Doubt: 1) If its asked that what address does $PC$ hold after execution of $HALT$ what it should be? 2) If the question does not clue about access mechanism for cache what mechanism to hold $hierarchical$ or $simultaneous$ ... ? 8) Processor access $TLB$ first or $Cache$? if its mentioned both then whose access considered first? Thank you for your time!
asked in Others Jan 2, 2018
597 views
4 votes
1 answer
12
Associative mapping in cache
If main memory $=128 \ KB$ and cache memory is of $2KB$ with $16B$ lines .and uses associative mapping . What would be the # of bits used for Tag for each block?
asked in CO and Architecture Jan 1, 2018
1.5k views
  • co-and-architecture
  • cache-memory
4 votes
1 answer
13
Limit and Continuity
Evaluate the given limit : $lim_{x\rightarrow0} \ {\Large \frac{(1+x)^{\frac{1}{x}}-e}{x}}$ options : $ \\ a) \frac{e}{8} \\ b) -\frac{e}{2} \\ c)- \frac{e}{4} \\ d) 1$
asked in Calculus Dec 31, 2017
3.6k views
  • engineering-mathematics
  • calculus
  • limits
2 votes
0 answers
14
Process_Scheduling
Consider this table : Using SRTF policy what is the avg waiting time? given options : $2 \ 3 \ 4 \ 5$ I am getting $\Large {\frac{5}{3}} $\approx 1.67$
asked in Operating System Dec 28, 2017
372 views
  • operating-system
  • process-scheduling
1 vote
0 answers
15
Self_doubt
1) If a binary relation itself is transitive , then the transitive closure is same as that relation- $True \ OR \ False?$ 2)If a node in BST has $2$ children,then its inorder successor has no left child and similarly its inorder predecessor has no right child - $True \ OR \ False?$ 3)Thrashing slow down the process execution time by several magnitute - $True \ OR \ False?$
asked in Others Dec 28, 2017
237 views
  • discrete-mathematics
  • operating-system
0 votes
2 answers
16
Theory_of_computation
Q-1) What are the things that are not decidable about DCFL or DCFG? 2)How complexity theory is related to formal langauages ,I know that pure complexity lies in decidable region but question like this confuses me : 3) Apart from this this question : ... how we calculate the quotient and moreover question asks to draw the dfa for the same language,how to work with quotient .?
asked in Theory of Computation Dec 27, 2017
536 views
  • theory-of-computation
  • decidability
0 votes
0 answers
17
Mathematics
1) No of Equivalence relation on a set of 5 distinct elements? - 2)What kind of graphs are represented as $Q_k$ where k $\epsilon \ \mathbb{N}$ 3)No of string upto length $3$ on alphabet {$a,b,c,d$} ? Answers : 1)52 2)?? 3)85
asked in Set Theory & Algebra Dec 25, 2017
259 views
  • discrete-mathematics
  • set-theory&algebra
1 vote
1 answer
18
Comp.Architecture-2
Here $128$ block actually refers to Lines right? So it should be $8+4+7=19$ Assume memory is word addessable?Thanks!
asked in CO and Architecture Dec 24, 2017
159 views
  • co-and-architecture
  • cache-memory
0 votes
1 answer
19
Comp.Architecture-3
My work: $1+0.1*5+0.05*50=4ns$ Now please give me reasoning about : missing in $L1$ i will access $L2$ and i did that now When i am missing in $L2$ isn`t this obvious that i have actually missed in $L1 $ or should i mention it by $0.05*0.1*50$ Thanks!
asked in CO and Architecture Dec 24, 2017
264 views
  • co-and-architecture
  • multilevel-cache
1 vote
0 answers
20
Test_series
Answers given in test series are as follows: 1)B 2)D 3)B 4)B Ps: I posted all these 4 question in one because i thought most of them are erroneous so better to make one thread!
asked in Theory of Computation Dec 22, 2017
521 views
  • theory-of-computation
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