Recent questions without answers - GATE CSE Doubts

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applied gate :maths

asked 10 hours ago in Mathematical Logic by abhinav649 (45 points) | 18 views

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MADE EASY FULL TEST 7 advance level
the number of even palindromes over the alphabet {p,q,r} upto length n equals 121? what is n? I calculated for 0,2,4,6,8 and individual comes out to be 1,3,9,18,69 and it adds upto 100, so how answer can be 8?(they have given 8 as answer) what is the mistake?

asked 10 hours ago in Combinatory by Rajat Maheshwari (10 points) | 9 views

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ME CBT How is "A" regular?

asked 11 hours ago in Theory of Computation by toxicdesire (178 points) | 13 views

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MADE EASY CBT QUERY
Does anyone know how many people appear in MADE EASY CBT?

asked 12 hours ago in Others by GAITONDE (1.6k points) | 16 views

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GO Question CSMA/CD
Can anyone explain the answer to this question Two csma/cd stations are trying to send frames..After each frame is sent they contend for channel using backoff exponential algorithm?What is probability that contention ends on round k? Below is the selected answer Collision always occurs in round 1. ... https://gateoverflow.in/30257/csma-cd

asked 13 hours ago in Computer Networks by !KARAN (197 points) | 8 views

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Ace Mock Test Full length
Doubt: 1) what happens when input is ‘a’ and top of the stack is ‘a’? 2) How C can be the answer and not D?

asked 15 hours ago in Theory of Computation by Rudr Pawan (729 points) | 11 views

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applied gate:TOC

asked 17 hours ago in Theory of Computation by abhinav649 (45 points) | 34 views

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ISRO 2020 Database
If every non-key attribute functionally dependant on the primary key, then the relation will be in (a) First normal form (b) Second normal form (c) Third normal form (d) Fourth normal form

asked 17 hours ago in Databases by tp21 (224 points) | 7 views

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COA GF 2020 test

asked 17 hours ago in CO & Architecture by Debapaul (612 points) | 10 views

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Self Doubt: GATE FORUM FLT5
Can’t we solve it using $Binomial$ $theorem$ ${80}\choose{4}$ $*0.06^4 *$ $0.94^{76}$ $?$

asked 18 hours ago in Probability by Debapaul (612 points) | 15 views

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Three address code: GATE FORUM
Do we need to declare $b-c$ the second time? It can be used from $t_1$ right?

asked 18 hours ago in Compiler Design by Debapaul (612 points) | 10 views

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GATE FORUM: DISCRETE MATHS
I have solved it like this Do we need to consider $7$ also? $7$ shouldn’t be in the relation right? So minimal elements in $3$ right?

asked 18 hours ago in Mathematical Logic by Debapaul (612 points) | 15 views

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GATE FORUM FLT 5

asked 18 hours ago in Algorithms by Debapaul (612 points) | 15 views

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Made Easy test series coa cache memory t2 16
Suppose that a processor has access to three levels of memory. Level 1 contain 2000 words and has an access time of 0.02 msec. Level 2 contain 10,000 words and has an access time of 0.2 msec. Level 3 contains 20,000 words and has an access time ... The hit ratio for level 1 is 0.65 and for level 2 is 0.45. The average access time (in μsec) is ________.

asked 19 hours ago in CO & Architecture by Ram Swaroop (150 points) | 13 views

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self doubt on theory of computation
Let L1 is CFL but not regular and L2 is regular .£ ={a,b}. L1 intersection L2 is empty . Can we say L1 union L2 is CFL but not regular(always)?? in this L1 is the left one and L2 is right one I am getting confused that isn't L3 = a^ib^jc^k i,j,k>=0 and all independent whih makes L3 regular

asked 20 hours ago in Theory of Computation by Rajat Maheshwari (10 points) | 17 views

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Algorithms Directed Acyclic Graph
What is the value after evaluating given DAG when a=3? 56 b. 168 c. 504 d. 1512

asked 21 hours ago in Algorithms by haralk10 (54 points) | 6 views

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Self Doubt C.N
DVR(distance vector routing) : How many rounds does DVR algorithm runs per period?

asked 21 hours ago in Computer Networks by tp21 (224 points) | 4 views

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#Self_doubt#Database_NaturalJoin
After doing R natural join S the table will have A,B,C attributes so on natural join of this table with Table T do we need to compare A and C both or only A or C?

asked 23 hours ago in Databases by nandani17 (27 points) | 4 views

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Made Easy test series coa cache mapping single subject 33

asked 1 day ago in CO & Architecture by Ram Swaroop (150 points) | 12 views

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Average memory access time of cache
For this question, they've solved it using the formula AMAT = H1T1 + M1(H2T2 + M2 ...) and so on. However, since the question has directly given the hit time of the cache, I thought it'd be more appropriate to use the formula: ... ) + MissRate(MM)*(HitTime(Secondary))) So, which one is more appropriate and how would you differentiate between the two use cases?

asked 1 day ago in CO & Architecture by goxul (363 points) | 7 views

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MadeEasyTest
cant we use bellman ford in vm time, if we know u and v vertex? or else cant we use floyd warshell algo in (v^2)*m time?

asked 1 day ago in Algorithms by nandani17 (27 points) | 7 views

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MadeEasyTest
I think answer should be 13 (17-4=13) anyone plz confirm

asked 1 day ago in Databases by nandani17 (27 points) | 11 views

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ace testseries full length test
53.

asked 1 day ago in Databases by Rahul Burman (19 points) | 11 views

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applied gate :CN(congestion window)
this sunday immmediately after sam initiates the connection ,alice decides to send him a 60 KB pic using TCP.assuming she sends the pic in 2500 B segments including 50 B header over a 2Mbps link with a propagation delay of 30 ms, ... last ACK ?tcp implements a slow start mechanism with initial congestion window of 1.neglect all other delays amd packet looses.

asked 1 day ago in Computer Networks by abhinav649 (45 points) | 4 views

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Self Doubt: Adding attributes/relations to BCNF to convert it into dependency preserving

asked 1 day ago in Databases by shashin (1.2k points) | 6 views

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Made easy test series :Algorithms
What is the time complexity of Merge sort if no extra array is available while combining ?

asked 1 day ago in Algorithms by Chirag Shilwant (143 points) | 6 views

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GATEBOOK MOCK TEST 1 Q59
In an NGO study on the effect of sleep on call center workers, following were the observations made on a certain number of volunteers in the study. 75% of the volunteers receive fewer than 6 hours of sleep and report feeling tired during ... volunteers receive fewer than 6 hours of sleep, what percent of the volunteers report no feelings of tiredness during their shifts ?

asked 1 day ago in Numerical Ability by Rajat Maheshwari (10 points) | 7 views

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GATEBOOK MOCK TEST 1 Q49
A sequence detector has to be designed to detect a sequence with at most 3 runs of consecutive zeros of length 3. 001000010001000 This sequence has exactly 2 such runs If we implement a sequential circuit with J-K flip flops then minimum number of flip flops required is ----?

asked 1 day ago in Digital Logic by Rajat Maheshwari (10 points) | 3 views

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Self doubt coa what is target address after if interrupt occurs after halt instructions

asked 1 day ago in CO & Architecture by Ram Swaroop (150 points) | 10 views

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Self doubt coa clock frequency
Memory cycle for immediate mode should be 0 is it correct? Consider 1GHz clock frequency processor,uses different operand accessing models shown below: Operand Accessing ModeFrequency(%) Register10 Immediate20 Direct30 Memory Indirect20 ... -series-co-%26-architecture-clock-frequency https://gateoverflow.in/25891/memory-addressing Please check above questions

asked 1 day ago in CO & Architecture by Ram Swaroop (150 points) | 7 views

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Self Doubt: Previous GO DBMS
Query 1 is right and query 2 is wrong right? Query 2 returns SID who has NOT supplied every red part right?

asked 2 days ago in Databases by Debapaul (612 points) | 13 views

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SELF DOUBT: TAKEN FROM GO
Consider that the relation has only one attribute $A$.

asked 2 days ago in Databases by Debapaul (612 points) | 43 views

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Doubt on Loop join
https://gateoverflow.in/295638/nested-loop-join Please provide the answer to this question and also what if index would have given in this https://gateoverflow.in/154100/nested-loop-jooin question Please help me in clearing this .

asked 2 days ago in Databases by vijay kumar 2 (29 points) | 8 views

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matrices self doubt
The vale f ‘a’ for which the matrix becomes a singular matrix i feel for any value f ‘a’ the determinant would be zero however the answer mentioned is a=3. can someone please help me with this.

asked 2 days ago in Mathematical Logic by Divyaok (20 points) | 8 views

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applied gate grand test co

asked 2 days ago in CO & Architecture by abhinav649 (45 points) | 5 views

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applied gate co test
A full adder is implemented using XOR ,AND,OR gates.the propagation delay of AND and OR gates are half of XOR gates .and propagation delay of XOR gate is 2 ms.a 4 bit ripple carry adder is implemented using 4 full adders . The total propagation delay of 4 bit ripple carry adder will be____? Note:the input given to gates is not restricted to 2.the gates have fan-in more than 2.

asked 2 days ago in CO & Architecture by abhinav649 (45 points) | 6 views

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Made Easy Test Series -DBMS
Now given an instance of a schema we cant conclude whether A functionally determines B for the entire relation itself as $A\rightarrow B$ holds for this instance, but it might not hold for the entire schema. But we can conclude this for sure that B doesn’t functionally determine C. So the given 2 statements are not correct. Am I, right?

asked 2 days ago in Databases by Rishav_Bhatt (12 points) | 1 view

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Ace test series : Programming and Data Structure

asked 2 days ago in Programming by Chirag Shilwant (143 points) | 9 views

+1 vote

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GATE GURU: TIME COMPLEXITY
In this question if we solve using logarithm we get time complexity of $g(n)>f(n)=h(n)$ But is taking $logarithm$ to find out the complexity always a safe way? I believe $NOT$. To support my claim I provide u with this link→ https://cs.stackexchange.com/ ... $logf(n)=O(log$ $g(n))$ So what is the approach to solve this problems to be $100\%$ sure about the ans?

asked 2 days ago in Operating System by Debapaul (612 points) | 18 views

+1 vote

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Made easy Test series-Quicksort
How much time it will take to sort n numbers by quicksort if some arbitrary algorithm takes (n2) time to choose pivot?

asked 2 days ago in Algorithms by Rishav_Bhatt (12 points) | 32 views

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