Recent activity by s_dr_13 - GATE CSE Doubts

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SELF DOUBT IN IMPLICATIONS
Can anybody please make me understand what's the relationship among implications in proposition logic and statements such as 1. Necessarily but not sufficient 2. Sufficient but not necessary 3. Sufficient as well as necessary 4. Neither sufficient nor necessary ( although I am ... <--> q If p is neither sufficient nor necessary is the same as ! (p <--> q)

asked Feb 9 in Mathematical Logic | 18 views

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Navathe's Fundamental of Database Systems ( 5th edition)

asked Nov 12, 2020 in Databases | 32 views

1 answer

self doubt in Normalization
Why we don’t allow a prime attribute to transitively dependent on a key in BCNF but allow in 3 NF ?

asked Nov 12, 2020 in Databases | 18 views

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Self Doubt in distribution problem
I have a small doubt which is :- Is identical to identical distribution the same as integer partition? Or in general, how to deal with distribution of identical letters to identical boxes?

commented Nov 9, 2020 in Combinatory | 16 views

1 answer

Self Doubt in regards to power of parsers
Why Bottom Up Parsers are more powerful than Top Down parsers ?

asked Oct 30, 2020 in Compiler Design | 28 views

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longest prefix match
Can anyone help to understand why does router uses longest prefix technique when there is a multiple match for a received packet ? why does it choose the one having largest no of 1s?

asked Jun 6, 2020 in Computer Networks | 7 views

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Ambiguity in Grammar
Which CFG has equivalent unambiguous CFG ? Please help me to understand between inherently ambiguous and simple ambiguous grammar. I know how to check for ambiguity in grammar,just check if there are more than 2 derivation tree possible for a given string. But I don’t know how to check if a grammar is inherently ambiguous grammar

asked Feb 1, 2020 in Theory of Computation | 22 views

1 answer

gatebook test
A RISC processor has 208 registers, 16 register windows. Each window has 4 inputs, 8 local and 4 output registers. The total number of global registers are ?

commented Nov 25, 2019 in CO & Architecture | 223 views

1 answer

Applied course test series
A pipeline P operating at 400 Mhz has a speedup factor of 6 and operating at 70% efficiency. How many stages are there in the pipeline? I think the answer should be 8 but the correct answer according to applied course is 9

asked Nov 23, 2019 in CO & Architecture | 51 views

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Subnetting and classful addressing
What is the subnet address of the IP address 192.168.5.55 with a subnet mask of 255.255.255.224 ? Is it 192.168.5.32 ??

asked Oct 19, 2019 in Computer Networks | 35 views

1 answer

ICMP echo reply request
An ICMP Echo Request and Reply can be used to determine if we have connectivity between a client and server at the Application Layer level? Is it False,right ? ping command is used to check for connectivity at network layer ?

asked Oct 19, 2019 in Computer Networks | 34 views

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C programming output
#include <stdio.h> char str1[100]; char *mystery(char str[]) { static int i = 0; if (*str) { mystery(str+1); str1[i] = *str; i++; } return str1; } int main() { char str[] = "ehT etaG kooB"; printf("%s", mystery(str)); return 0; } Plz provide a detailed explanation

asked Jul 25, 2019 in Puzzles | 40 views

1 answer

Group theory
How to tackle such proofs Prove that a group of order 9 is abelian.

asked Jul 6, 2019 in Mathematical Logic | 31 views

1 answer

Calculus Estimating Errors
what is the solution ?

asked Jun 19, 2019 in Mathematical Logic | 24 views

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