Questions by HeadShot

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1

Google foo-bar
Hi guys , I got Google's invitation for foo-bar challenge. I think i can go for one or two level but not further with current level of practice. So without requesting for the problem , does anyone know how long I can keep it logged in ?

asked in Others May 30, 2019

244 views

0 votes

0 answers

2

Doubt : Indexing (Test By Bikram Sir )
I used multilevel indexing and got 5+1 i e 6 block transfers. answer given is 18+1 i.e 19 how to know which method to be used ? ( is that 19 bcoz of 'BST' ? )

asked in Databases Jan 10, 2019

458 views

0 votes

0 answers

3

Set Theory Doubt
Approach : 1. Select given number say 1, then find combination of rest of the elements. e.g select 1 , now remaining 4 elements, make subsets of 2 elements and add "1" in each subsets ie C(4,2) = 6. Suggest any another method please.

asked in Set Theory & Algebra Jan 8, 2019

391 views

0 votes

0 answers

4

Site Feedback
Just a small tweak. Probably on mobile browser ( i use chrome and found the same when I switched to desktop site on phone itself) when we use "$" with just a single space left and type further context, things get overlapped. Snapshot :

asked in Others Jan 7, 2019

440 views

0 votes

0 answers

5

Doubt : Recursion ( snippet by testbook )
Its always a confusion how Recursion works with for loop. Explain a brief.

asked in Programming in C Jan 7, 2019

275 views

2 votes

2 answers

6

ME OTS 1 : Finite Automata
Doubt: ( Even if we take compliment , its wont satisfy it )

asked in Theory of Computation Jan 5, 2019

607 views

0 votes

0 answers

7

Doubt : GBN packet retransmission
Station A wants to send 10 packets to station B using Go Back N ARQ, where N = 4. Moreover consider every 3 rd packet lost while transmission (ACK's from B never get lost). Calculate the number of transmissions that A has to make in GBN respectively to ensure safe delivery to B. ( This has been already asked but need some clarification ) Approach :

asked in Computer Networks Jan 5, 2019

568 views

0 votes

1 answer

8

ME OTS : Memory Mapped I/O
Which of the following best characterizes about memory mapped I/O? A.Additional hardware for bus is required to control the 1/0 bus and memory bus. B.Some of the address space is separated from the memory space and assigned them to II/0 ... differentiate between memory and I/O different control signals is used for memory and I/0. Please explain the options in short.

asked in CO and Architecture Jan 5, 2019

825 views

1 vote

0 answers

9

ME OTS : TCP timers
Assume in TCP client is sending segment to server. After successfully receiving segments from client, server is waiting for next segments and clients is also waiting for acknowledgment from the server and this lead to deadlock situation. Which timer is used and ... , client C. Persistenttimer, client D. Keep alive timer, client Answer given : C It should be B right ?

asked in Computer Networks Jan 5, 2019

624 views

0 votes

0 answers

10

ME OTS : Pipelining
Consider the following statements (I) Execution time for single instruction on six stage pipelined CPU is less than or equal to identical non- pipelined CPU. (ii) In a uniform delay pipeline execution time for a single instruction is equal to the ... if stage delay exist then for single execution, pipeline time will not be equal. Hence 2nd statement wont be true always.

asked in CO and Architecture Jan 5, 2019

1.2k views

0 votes

0 answers

11

Group Theory : Lagrange's Theorem
Please explain me with simple 1-2 examples how order of a subgroup divide order of a group and why it is always true.

asked in Set Theory & Algebra Jan 5, 2019

336 views

0 votes

0 answers

12

SSLC Number
What is SSCL number ? Marksheet SSC : Certificate SSC :

asked in Others Jan 3, 2019

292 views

0 votes

0 answers

13

ME ots 2
how O(logn) ? if no such a[i] exist in array then in worst case we have to apply binary search for every element and it will take O(nlogn) so better we can have linear search that would take O(n) as we have to travrset it only once .

asked in Algorithms Jan 2, 2019

197 views

0 votes

0 answers

14

ME ots 1
I think they asked something different and expected something different. " not all vowels together " and "no vowels together" has totally different meaning and they calculate the later one and expected former one.

asked in Combinatory Jan 2, 2019

375 views

0 votes

0 answers

15

ME OTS
If DMA dont use interrupt then how CPU get to know whether DMA finished his data transfer / data transfer was not successful ?

asked in CO and Architecture Jan 2, 2019

311 views

0 votes

0 answers

16

Time Per Question
I couldn't track how much time I spent per question while solving paper. Should I always note the time when i start solving a new question ? How to keep track of a question when i started solving it and how much time i am spending on it ?

asked in GATE Jan 2, 2019

813 views

0 votes

0 answers

17

Basic Doubt
Statement : "Every Euler Graph is a simple graph" Please comment whether it is true always or need not to be. ( My concern is whether multi edge or self loop is allowed in euler graph or not i. e non-simple graph allowed or not )

asked in Graph Theory Jan 2, 2019

586 views

0 votes

0 answers

18

ME OTS 3
Last level isnt consider as index ? is it because it does not point to any block ? but it does point to record right then why we dont consider it as index level ? ( may be i am missing some basic thing but explain it please )

asked in Databases Jan 2, 2019

213 views

0 votes

0 answers

19

ME OTS 1
I didn't get the solution.

asked in Theory of Computation Jan 1, 2019

342 views

1 vote

0 answers

20

Application
I just got notification about recruitment in isro but cse is not there so dont they have any seats this time or application for cse will be notified soon ?

asked in ISRO Dec 27, 2018

587 views

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