Recent questions without answers - GATE CSE Doubts

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Applied gate test
Suppose we have B-tree nodes with room for three keys and four-pointers. Suppose also that when we split a leaf, we divide the pointers 2 and 2, while when we split an interior node, the first 3 pointers go with the first (left) node, and the last 2 pointers ... in order, records with keys 4, 5, 6, and so on. At the insertion of what key will the B-tree first reach four levels?

asked 8 hours ago in Databases by Raj_81 (5 points) | 5 views

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database management systems
hi guys, if a lossless, dependency preserving relation is there, then it can be decomposed into 3NF if a lossless, dependency preserving relation is there, then it can be decomposed into bcnf which one is correct? and why?

asked 20 hours ago in Databases by rish1602 (7 points) | 5 views

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applied gate test series : finding number of prime implicants in presence of don't cares

asked 1 day ago in Digital Logic by ayush.5 (71 points) | 15 views

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self doubt on DAG
When we talk of Minimum nodes in a DAG, can we use code optimisation suppose TAC looks like a=a+b b=a-b c=b+c d=c-b What will be minimum number of nodes in the DAG? Should we optimize it like a=a+b b=a c=b+c d=c and then proceed?

asked 1 day ago in Compiler Design by Shashank Rustagi (513 points) | 3 views

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GATE2005-IT Qstn no 53
In the expression count[b[j++]]−− two post operations are present ,In which order will they be evaluated? [Ignore any array out of bound errors and count is an array of integers]

asked 2 days ago in Programming by deCiFer598 (5 points) | 13 views

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Recurrence Relation
In a second degree non homogenous recurrence Relation let it be (an) -4(an-1)+4(an-2)= 2 • b^n Let m1 and m2 are the roots of the characteristic equation that is m1 = m2 =2. What will be the particular solution ? 1. ( A n^2 b^n )where A is an arbitrary constant. 2. ( A b^n ) where A is an arbitrary constant 3. None of the above.

asked 4 days ago in Mathematical Logic by Sinchit (15 points) | 16 views

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Self doubt related IIB PhD exam date
IIT Bombay upload prepostponed written test scheduled for Springer PhD admission. But SCIENTIST B exam date and written test PhD are conflict that is 22 NOV. What we should do now. I think They know about exam going to held on 22 Nov. because they have updated written exam date yesterday earlier was 7 Dec.

asked 4 days ago in Written Exam by VIDYADHAR SHELKE 1 (5 points) | 9 views

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Gate Applied Test
Give the solution in a detailed manner for clearer photo of the ques see this link:https://drive.google.com/file/d/1u7M2dlAzxFIuRKlRadhsSFtf0hAVOKRi/view?usp=sharing

asked 5 days ago in Computer Networks by Ashutosh777 (67 points) | 29 views

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Applied Course Test
Consider the effect of using slow start phase with 12ms round trip time, the size of the congestion window is set to 40kB the sender side threshold is set to 20kB. after the seventh transmission ,Timeout occurs after Timeout the time taken to send the first full window of 20 KB in millisecond (assume size at the start of the slow start phase is to 2KB ,MSS is 2KB)

asked 5 days ago in Computer Networks by Ashutosh777 (67 points) | 19 views

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os timothy williams memory protection
Memory protection is normally done by A. the processor and the associated hardware B. the operating system C. the compiler D. the user program answer is given as A is it not B?

asked 5 days ago in Operating System by eyeamgj (21 points) | 8 views

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os disk timothy willliams
A certain moving arm disk storage, with one head, has the following specifications: Number of tracks/recording surface =200=200 Disk rotation speed =2400=2400 rpm Track storage capacity =62,500=62,500 bits the average latency time(assume that the head can move from one track ... entire track) is answer given as 2.5 sec is it correct ? i am getting 12.5 ms please see .

asked 5 days ago in Operating System by eyeamgj (21 points) | 7 views

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Array using function
Write a program to count multiple of 3 and 7 among n values using array using function

asked 5 days ago in Others by rakhi thakur (5 points) | 15 views

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Made Easy Test series
I am not getting the same answer. Is the given solution correct?

asked 6 days ago in Compiler Design by CSHuB (13 points) | 16 views

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Made Easy Test series
Is the given answer correct? How to solve this one?

asked 6 days ago in Databases by CSHuB (13 points) | 18 views

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telegram internet

asked 6 days ago in CO & Architecture by Love Barot (7 points) | 19 views

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Self Doubts..
What would be the minimum number of states in a DFA on {a,b} where number of a's is divisible by 2 OR number of b's divisible by 3?

asked 6 days ago in Theory of Computation by Sinchit (15 points) | 38 views

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Self doubt - lexical analysis
Macros & preprocessor are independent of lexical analysis or included in lexical analysis??

asked 6 days ago in Compiler Design by G Shaheena (5 points) | 19 views

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Testbook.com Test Series
Let L, M be any two Context Free Languages and X be a Regular Language. Which of the following statements given below are always correct ? A.) M – X is Context Free. B.) L $\cap$ M is Regular Language. C.) L $\cup$ M is Context Free. D.) M – X is Context Sensitive Language.

asked 6 days ago in Theory of Computation by Rishav Chetan (5 points) | 14 views

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Interrupt Service
In which cases does the CPU halts the currenty executing instruction and service the interrupt? and in which case does it first finishes the execution of the current instruction and then service the interrupt.

asked 6 days ago in CO & Architecture by learner 2102 (5 points) | 8 views

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made easy test series
How to solve this?

asked Oct 22 in Digital Logic by Sinchit (15 points) | 19 views

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Gate Overflow Test
gate-overflow-test:Deterministic-Pushdown-Automata accepting by empty stack accepts all Deterministic-Context-Free-Languages having prefix property. Regular languages having prefix property is a subset of Deterministic-Context-Free-Languages having prefix property. can anyone explain what actually that means.

asked Oct 22 in Theory of Computation by Vaibhav98 (5 points) | 19 views

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Probability # Self doubt # GO test
How to solve this calculation step by step ? Ans is 99.56%.

asked Oct 22 in Mathematical Logic by Sharma9999999 (5 points) | 16 views

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made-easy relational-algebra
consider the relation R(A, B, C, D). Which relational algebra expression to return the lowest value of A?

asked Oct 21 in Databases by kalin (5 points) | 18 views

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Applied gate mock 1
Whether the given schedule is serializable or not? The given schedule is clearly not conflict serializable as precedence graph contains cycle.. But will it be view serializable or not?? I used For View Equivalence: (1) If transaction Ti reads initial value of any ... satisfied.. (if you got any violation then let me know) But the given answer says it is not view serializable..

asked Oct 21 in Databases by Verma Ashish (697 points) | 19 views

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Database Systems by Elmasri and Navathe(4th edition)

asked Oct 21 in Databases by ayush.5 (71 points) | 11 views

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Database System (4th edition) by Elmasri and Navathe. ER model to relational model conversion.

asked Oct 21 in Databases by ayush.5 (71 points) | 11 views

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applied gate test series
Two disk drives are available for a particular computer. Disk A has 5400 rpm and drives B has 7200 rpm. Which disk drive provides better performance? a) Drive A b) drive B c) Both have the same performance d) Insufficient information to decide

asked Oct 21 in CO & Architecture by CSHuB (13 points) | 11 views

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Self Doubt Algorithms
what is time complexity to insert a node based on key in a priority queue? O(nlogn) O(logn) O(n) (n2) i am unable to get the meaning of the question . is it a simple insertion in the priority queue?? . what is the meaning of “based on key”.Please explain this….

asked Oct 20 in Programming by manal jain (5 points) | 15 views

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Computer Apllications
import java.io.*; import java.util.*; class str_unicode { public static void main() { Scanner ob=new Scanner(System.in); System.out.println("\u000c"); for(int i=32;i<=47;i++) System.out.println("\t"+i+""+(char)i); } }

asked Oct 20 in Compilers, Architecture, HPC by Shashank.l (5 points) | 12 views

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online search
there are 5 pairs of different shoes.in how many ways can each person so that at least two person get a complete pair

asked Oct 20 in Combinatory by ajay05908 (5 points) | 10 views

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Made Easy Test series
what would be the answer? please explain how to solve such question?

asked Oct 20 in Digital Logic by Sinchit (15 points) | 19 views

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Theory of computer science
regular language closed under intersection with any language true or false

asked Oct 20 in Theory of Computation by nihal singh parihar (5 points) | 26 views

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Token Bucket Doubt
Imagine a flow specification that has a maximum packet size of 1000 bytes, a token bucket rate of 10 million bytes/sec, a token bucket size of 1 million bytes, and a maximum transmission rate of 50 million bytes/sec. How long can a burst at maximum speed last.

asked Oct 20 in Computer Networks by ghostman23111 (5 points) | 18 views

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Gate 2021, self doubt
HI Guys cliche question but still ?i have forgotten all that i had studied in may / june etc like COA, TOC etc, i am struggling to revise , solve previous year questions and have not yet started test series , can you please suggest some plans so that i enhance my confidence level as well as motivation...

asked Oct 20 in GATE by vibhorsoni19 (5 points) | 16 views

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MADEEASY WORK BOOK
THE AVERAGE DEVIATION OF ALL THE ITEMS IN THE DATA FROM ZERO IS EQUAL TO………… ARITHMETIC MEAN MEDIAN, MODE, STANDARD DEVIATION , VARIANCE I THINK ITS MEAN……? IS IT CORRECT?

asked Oct 20 in Probability by eyeamgj (21 points) | 12 views

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C programming self doubt
int a=14; a=a++; Why is the final output of a is 14 and not 15? Since post operator is used so first the value 14 will be assigned to “a” and then “a” will get incremented to 15.So final value should be 15.But why it is coming output as 14?

asked Oct 19 in Programming by vishal burnwal (65 points) | 26 views

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Self Doubt in Theory of Computation, Regular Language

asked Oct 19 in Theory of Computation by nvs16 (9 points) | 46 views

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Peter Linz 5th edition
Find grammars for the following languages on ∑ = {a}, L = {w : |w| mod 3 > 0}.

asked Oct 19 in Theory of Computation by PrinceSoni (5 points) | 8 views

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ACE test :Compiler1
Please tell me, how C) should be correct ans in RMD?

asked Oct 18 in Compiler Design by srestha (1k points) | 15 views

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Made Easy Full Length Demo Test 2021
I am confused! Is bounded waiting satisfied here? And isnt it the definition of progress that the admin is speaking? Am I missing something?

asked Oct 18 in Operating System by nvs16 (9 points) | 24 views

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