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Recent activity by Peeyush Pandey

6 answers
1
The value of $\int^{\pi/4} _0 x \cos(x^2) dx$ correct to three decimal places (assuming that $\pi = 3.14$) is ____
commented May 4 in Calculus 5.9k views
6 answers
2
The Boolean function in sum of products form where K-map is given below (figure) is _______
commented Feb 6 in Digital Logic 1.9k views
1 answer
3
why c) option wrong?
commented Jan 14, 2019 in Operating System 149 views
2 answers
4
How to solve it(clear explanation please)
answered Jan 14, 2019 in Graph Theory 141 views
6 answers
5
Let $T$ be a tree with $10$ vertices. The sum of the degrees of all the vertices in $T$ is ________
comment edited Jan 10, 2019 in DS 5.5k views
2 answers
6
A max-heap is a heap where the value of each parent is greater than or equal to the value of its children. Which of the following is a max-heap?
commented Jan 10, 2019 in DS 2.3k views
4 answers
7
Let $A$ and $B$ be any two arbitrary events, then, which one of the following is TRUE? $P (A \cap B) = P(A)P(B)$ $P (A \cup B) = P(A)+P(B)$ $P (A \mid B) = P(A \cap B)P(B)$ $P (A \cup B) \leq P(A) + P(B)$
commented Jan 8, 2019 in Probability 6.8k views
1 answer
8
$\lim_{x\rightarrow \frac{\pi }{2}}cosx^{cosx}$ can we straight away say $0^{0}=0$ ?
commented Jan 5, 2019 in Calculus 70 views
1 answer
9
The elements $42, 25, 30, 40, 22, 35, 26$ are inserted one by one in the given order into a max-heap. The resultant max-heap is sorted in an array implementation as $<42, 40, 35, 25, 22, 30, 26>$ $<42, 35, 40, 22, 25, 30, 26>$ $<42, 40, 35, 25, 22, 26, 30>$ $<42, 35, 40, 22, 25, 26, 30>$
answered Jan 3, 2019 in Unknown Category 402 views
1 answer
10
In the network 202.10.4.230/27 the last but one valid IP which can be assigned to a host from the last subnet is ___________.
commented Jan 3, 2019 in Computer Networks 73 views
4 answers
11
Which of the following does not interrupt a running process? A device Timer Scheduler process Power failure
commented Jan 3, 2019 in Operating System 7.6k views
1 answer
12
​​​​​​​A host is connected to a department network which is part of a university network. The university network, in turn, is part of the Internet. The largest network, in which the Ethernet address of the host is unique, is the Internet the university network the department network the subnet to which the host belongs
answered Jan 2, 2019 in Unknown Category 120 views
1 answer
13
​​​​​​​Dirty bit is used to show the wrong page page with corrupted data page with low frequency occurrence page that is modified after being loaded into cache memory
commented Jan 2, 2019 in Unknown Category 287 views
1 answer
14
​​​​​​​Suppose $P, Q$ and $R$ are co-operating processes satisfying Mutual Exclusion condition. Then, if the process $Q$ is executing in its critical section then Both $‘P’$ and $‘R’$ execute in critical section Neither $‘P’$ nor $‘R’$ executes in their critical section $‘P’$ executes in critical section $‘R’$ executes in critical section
answered Jan 2, 2019 in Unknown Category 551 views
2 answers
15
​​​​​​​______ system call creates new process in Unix. create create new fork fork new
answered Jan 2, 2019 in Unknown Category 198 views
1 answer
16
In computers, subtraction is generally carried out by $9$’s complement $1$’s complement $10$’s complement $2$’s complement
answered Jan 2, 2019 in Unknown Category 751 views
1 answer
17
​​​​​​​Suppose a system has $12$ instances of some resource with $n$ processes competing for that resource. Each process may require $4$ instances of the resources. The maximum value of $n$ for which the system never enters into deadlock is $3$ $4$ $5$ $6$
answered Jan 2, 2019 in Unknown Category 736 views
3 answers
18
Consider a disk pack with $32$ surfaces, $64$ tracks and $512$ sectors per pack. $256$ bytes of data are stored in a bit serial manner in a sector. The number of bits required to specify a particular sector in the disk is $18$ $19$ $20$ $22$
answered Jan 2, 2019 in Unknown Category 267 views
2 answers
19
The boolean expression $\overline{A} \cdot B + A \cdot \overline{B}+ A \cdot B$ is equivalenet to $\overline{A} \cdot B$ $\overline{A+B}$ $A \cdot B$ $A+B$
commented Jan 2, 2019 in Unknown Category 641 views
2 answers
20
A survey has been conducted on methods of commuter travel. Each respondent was asked to check Bus, Train and Automobile as a major method of travelling to work. More than one answer was permitted. The results reported were as follows : Bus $30$ people; Train $35$ people; ... $20$ people; and all the three methods $5$ people. How many people completed the survey form? $120$ $165$ $160$ $115$
answered Jan 2, 2019 in Unknown Category 727 views
2 answers
21
Match List-I with List-II and choose the correct answer from the code given below : ... iii), (d)-(iv) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i) (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
answered Jan 2, 2019 in Unknown Category 659 views
1 answer
22
​​​​​​In mathematical logic, which of the following are statements? There will be snow in January. What is the time now? Today is Sunday. You must study Discrete mathematics Choose the correct answer from the code given below: i and iii i and ii ii and iv iii and iv
answered Jan 2, 2019 in Unknown Category 1.1k views
0 answers
23
Let G be a directed graph whose vertex set contains numbers from 1 to 1024. There is an edge from a vertex i to a vertex j iff either j=i+1 or j=3i. The minimum number of edges in the path from vertex 1 to vertex 100 is------- # answer is 7
commented Jan 2, 2019 in Others 69 views
2 answers
24
In a file allocation system, which of the following allocation scheme(s) can be used if no external fragmentation is allowed ? Contiguous Linked Indexed 1 and 3 only 2 only 3 only 2 and 3 only
commented Jan 2, 2019 in Operating System 5.2k views
6 answers
25
From the following instance of a relation schema $R(A,B,C)$ ... $B$ does not functionally determine $C$ $B$ does not functionally determine $C$ $A$ does not functionally determine $B$ and $B$ does not functionally determine $C$
commented Jan 1, 2019 in Databases 5.2k views
7 answers
27
The stage delays in a $4$-stage pipeline are $800, 500, 400$ and $300$ picoseconds. The first stage (with delay $800$ picoseconds) is replaced with a functionality equivalent design involving two stages with respective delays $600$ and $350$ picoseconds. The throughput increase of the pipeline is ___________ percent.
commented Dec 31, 2018 in CO and Architecture 11k views
2 answers
28
Let $G$ be a graph of order $n$ in which every vertex has degree equal to $d$. How large must $d$ be in order to guarantee that $G$ is connected? $\frac{n}{2}$ $\lceil (n-1)/2 \rceil$ $\lfloor (n+1)/2 \rfloor$ $(n-1)/2$
commented Dec 31, 2018 in Graph Theory 479 views
1 answer
29
$\begin{bmatrix} 2 & 2 & 1 \\ 1 & 3 & 1 \\ 1 & 2 & 2 \end{bmatrix}$ For the above given matrix $A,$ $A^3 -7A^2 +10A = $ $5I+A$ $5I-A$ $A-5I$ $6I$
commented Dec 31, 2018 in Linear Algebra 246 views
2 answers
30
void foo(int n) { while (n! = 0) { if (!(n & 1)) printf(“*”); n = n >> 1 ; } } The number of times printf(“*”) is executed, when the value 2 raised to power 24 is passed to the function foo() is ?
answered Dec 30, 2018 in Programming 72 views
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