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1
Pg 345 Question 23, 6th Edition KH Rosen
How many strings of three decimal digits do not contain the same digit three times? have exactly two digits that are 4s? I know question is easy but the answer is not matching with the one given over here Please someone verify.. Does the word “string” mean that we can take 0 as the first digit as well?
asked
in
Combinatory
Feb 27, 2019
196
views
kenneth-rosen
discrete-mathematics
0
votes
0
answers
2
Made Easy Gate Mock-2 Question 56
In the given network system, station A needs to send a payload of 1600 B from its network layer to station B. If fragmentation is done, then the actual data size to be transmitted is ______________
asked
in
Computer Networks
Jan 18, 2019
500
views
made-easy-test-series
3
votes
0
answers
3
MadeEasy Full Length Test 2019: Databases - Er Diagram
Consider the following ER diagram: How many number of relations are required for the above ER diagram? 2 3 5 1 Solution: My doubt is: Since $E_2$ isn't involved in total participation with $E_1$ so on merging we might get 2NF ... 2-NF violation. So by default which case is to be considered when normalization form is not mentioned?? 1-NF?
asked
in
Databases
Jan 18, 2019
440
views
databases
er-diagram
made-easy-test-series
1
vote
0
answers
4
MadeEasy Full Length Test 2019: Theory of Computation - Identify Class Languages
Consider the following language over ∑={0,1} $L_{1} = \left \{ a^{\left \lfloor \frac{m}{n} \right \rfloor}| m,n \geq 1; n<m \right \}$ $L_{2} = \left \{ a^{m^{n}}| m,n \geq 1; n<m \right \}$ Which of them are regular? Both L1 and L2 Only L2 Only L1 None Ans. A. Both Please explain.
asked
in
Theory of Computation
Jan 15, 2019
536
views
identify-class-language
theory-of-computation
made-easy-test-series
0
votes
0
answers
5
MadeEasy Full Length Test 2018: Digital Logic - Number Representations
2’s complement representation of the number $(-89)_{10}$ is 7 5 4 3 I don’t understand their solution. Please help.
asked
in
Digital Logic
Jan 15, 2019
395
views
digital-logic
number-representation
made-easy-test-series
5
votes
0
answers
6
MadeEasy Test Series 2019: Computer Networks - Congestion Control
Consider a TCP connection using the multiplicative additive congestion control algorithm where the window size is 1 MSS and the threshold is 32 MSS. At the $8^{th}$ transmission timeout occurs and enters in the congestion detection ... transmission. So we have to take the window size after the 12 RTTs right and not at 12th RTT?
asked
in
Computer Networks
Jan 15, 2019
1.1k
views
computer-networks
congestion-control
made-easy-test-series
0
votes
0
answers
7
MadeEasy Test Series 2019: Theory of computation - Grammer
Let L be the language of all strings on [0,1] ending with 1. Let X be the language generated by the grammar G. $S \rightarrow 0S/1A/ \epsilon $ $A \rightarrow 1S/0A$ Then $L \cup X= $ ∅ ∑* L X Ans given : B. ... a language which contains all strings that do not end with 1. But is it so? Can't we generate 11 from the grammar? Please verify.
asked
in
Theory of Computation
Jan 15, 2019
519
views
theory-of-computation
grammar
made-easy-test-series
1
vote
1
answer
8
MadeEasy Test Series: Programming & DS - Hashing
Consider the hashing table with m' slots and n' keys. If the expected number of probes in an unsuccessful search is 3, the expected number of probes in successful search is _____(Up to 2 decimals) Ans. 1.647 Here by default ... given here in the table http://cs360.cs.ua.edu/notes/hashing_formulas.pdf With linear hashing, I am getting around 1.61
asked
in
Programming
Jan 2, 2019
552
views
made-easy-test-series
data-structures
hashing
0
votes
0
answers
9
MadeEasy Full Length Test: Programming & DS - Programming in C
Consider the following function foo() void foo(int n) { if(n<=0) printf("Bye"); else { printf("Hi"); foo(n-3); printf("Hi"); foo(n-1); } } Let P(n) represent the recurrence relation indicating ... P(-2) But nothing is mentioned about P value when n<0. How to solve for P(-2) and other negative values?
asked
in
Programming
Jan 2, 2019
320
views
made-easy-test-series
programming-in-c
2
votes
1
answer
10
MadeEasy Full Length Test 2019: General Aptitude - Probability
A packet of 20 batteries is known to include 4 batteries that are defective. If 8 batteries are randomly chosen and tested, the probability that finding among them not more than 1 defective is Ans: 0.5033 Solution provided: How can we apply Binomial distribution ...
asked
in
Quantitative Aptitude
Jan 2, 2019
805
views
general-aptitude
quantitative-aptitude
probability
made-easy-test-series
1
vote
0
answers
11
MadeEasy Test Series: Operating System - Process Synchronization
Consider the following 2 functions P and Q which share 2 common variables A and B: P() Q() { { A=A+5; A=B+6; B=A-3; B=A-2; } } If P and Q execute concurrently, the initial value of A=2 and B=3 then the sum of all different values that B can take ____ (do not count B=3) Why have they taken intermediate values of B like 4..? :/
asked
in
Operating System
Jan 2, 2019
501
views
made-easy-test-series
operating-system
process-synchronization
0
votes
0
answers
12
Made Easy Basic FT-2 Question 11
In a 4-bit binary ripple counter, for every input clock pulse All the flip flops get clocked simultaneously Only one flip flop get clocked at a time Two flip flops get clocked at a time All the above statements are false Ans. D Why not B? The i/p clock is given to the LSB flip flop isn’t it?
asked
in
Digital Logic
Jan 2, 2019
3.6k
views
made-easy-test-series
digital-logic
0
votes
1
answer
13
MadeEasy Test Series: General Aptitude - Geometry
Triangles ABC and CDE have a common vertex C with the side AB of triangle ABC being parallel to side DE of triangle CDE. If the length of side AB=4 cm and length of side DE=10 cm and perpendicular distance between sides AB and DE is 9.8 cm ... $cm^2$ . Now here I don't understand why they have taken BCD and ACE on the same line! Isn't this possible?
asked
in
Quantitative Aptitude
Jan 2, 2019
560
views
made-easy-test-series
general-aptitude
geometry
0
votes
0
answers
14
Condition for regular language to be infinite
Given M = (Q,Σ,δ,q0,F) a DFA with n states. Prove: The language L(M) is infinite iff it contains a string with length t, where n ≤ t < 2n. Please provide a prove. I am not getting it from the resources available on the ... we can accept infinite no. of strings isn't it? Then why doesn't this condition suffice? Please point out where I am going wrong.
asked
in
Theory of Computation
Nov 30, 2018
1.9k
views
theory-of-computation
finite-automata
regular-language
2
votes
2
answers
15
Test Series : Checking Bounded Waiting
How does option B ensure Bounded Waiting? Process A can keep on entering the CS while process B tries to enter the CS but keeps on spinning over Wait(P). I mean if there is no context switch from A to B then A can keep on visiting the CS as many times as possible(no bound on the no. of times it enters) making B to wait.
asked
in
Operating System
Oct 2, 2018
1.8k
views
operating-system
bounded-waiting
process-synchronization
0
votes
0
answers
16
Test Series - Compiler Design Doubts
Doubt 1 : The answer is 3. When it is asked to find min. no. of temporary variables then we get 3. But here temporary is not mentioned still we have to assume that temporary is implicit? Doubt 2: The answer given is 4. But my ... the rules it shouldn't be in a separate block right? Doubt 4: Is this statement True or False. Please give reason to support.
asked
in
Compiler Design
Aug 16, 2018
228
views
compiler-design
0
votes
0
answers
17
ISI 2016 C2 B
The CPU of a system having an execution rate of 1 million instructions per second needs 4 machine cycles on an average for executing an instruction. On an average, 50% of the cycles use memory bus. For execution of the programs, the system utilizes ... in-status, check-status, branch and read/write in memory, each requiring one machine cycle. Please explain the solution with details.
asked
in
CO and Architecture
May 10, 2018
136
views
userisi2016
usermod
0
votes
1
answer
18
ISI-2017 C3 (a)
Let R(A,B,C) be a relation with primary key (A) and S(A,D,E) a relation with primary key (A,D). Each of the relations has n tuples. If the number of tuples in R natural join S is m, then determine the number of tuples in R natural left outer join S.
asked
in
Databases
May 9, 2018
371
views
userisi2017
usermod
databases
1
vote
1
answer
19
Finding max value of X in MST
I have this doubt that if the maximum value of x is to be found so that it is included in MST, then will it be 3 or 4? Because if it is 3 then there is no doubt that it would be included in the MST but if it is 4 then also it may get ... one should I consider? If the opposite was asked i.e. the minimum value of x so that it never gets included in MST then it is 5.
asked
in
Algorithms
Feb 2, 2018
374
views
algorithms
minimum-spanning-tree
9
votes
0
answers
20
MadeEasy Test Series 2018: Programming & DS - Stack
Given finite alphabet S = {A, B, C} and stack S of size 100. There are only three stack operations we can perform as mentioned below. Stack is initially empty and we do not perform pop ( ) on empty stack. Assume that only emit ( ) can print output ... to get A B C A C B A as output are ______. I am getting 15 but it is given 14. Please help.
asked
in
DS
Jan 26, 2018
1.0k
views
data-structures
stack
made-easy-test-series
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