Recent questions tagged gateforum-test-series

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Gateforum Test Series: Algorithms - Minimum Spanning Trees

asked Jan 20 in Algorithms by Prince Sindhiya Loyal (6.3k points) | 46 views

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Gateforum Test Series: Probability - Probability

asked Jan 20 in Probability by Prince Sindhiya Loyal (6.3k points) | 52 views

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Gateforum Test Series: Algorithms - Dynamic Programming
Given a text array $T[1…..n]$ and a pattern array $P[1….m]$ such that T and P are character taken from alphabet $\sum$, $\sum={a,b,c,…..z}$. String matching problem is to find all the occurence of P in T. A pattern occur with shift s in T if $P[1…..m]=T[s+1,…...s+m]$. Consider $T=bacacbaacacac$ $P=cac$ The sum of the value of all s is ________

asked Jan 14 in Algorithms by Gupta731 Active (4.8k points) | 52 views

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Gateforum Test Series: Databases - Transactions
Which of the following time stamp ordering protocol(s) allow the following schedules? $T:W_1(A)\ W_2(A)\ W_3(A)\ R_2(A)\ R_4(A)$ Time stamps: $T_1=5,T_2=10,T_3=15,T_4=20$ Thomas write rule Multiversion time stamp protocol Basic Time stamp All of these

asked Jan 13 in Databases by Gupta731 Active (4.8k points) | 41 views

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Gateforum Test Series: Computer Networks - Lan Technologies
Consider a scnario of CSMA/CD network. Suppose A & B attempt to transmit a frame simultaneously and collide. Using exponential backoff algorithm A chooses K=0 and B chooses K=1. Again they collide and after the 2nd collision both A & B will choose K with equal ... {0,1} and for B {0,1,2,3} For A {0,1,2,3} and for B {0,1,2,3}

asked Jan 13 in Computer Networks by Gupta731 Active (4.8k points) | 64 views

+1 vote

1 answer

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Gateforum Test Series: Compiler Design - Parsing
Which of the following is FALSE? (A) LL(k) grammars are context free grammar (B) LL(k) grammars are unambiguous (C) There are LL(k) grammars which are not context free (D) LL(k) grammars cannot have left recursion i marked a answer is given c)

asked Jan 11 in Compiler Design by Prince Sindhiya Loyal (6.3k points) | 97 views

+1 vote

1 answer

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Gateforum Test Series: Operating System - Virtual Memory
In a demand paging system page fault rate 0.60 and page fault service time 8 milliseconds, memory access time 200 nano seconds. Find out effective access time in nano seconds.

asked Jan 11 in Operating System by snaily16 (263 points) | 46 views

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Gateforum Test Series: Operating System - Virtual Memory
Let the page fault probability be 0.6 and page fault service time is 150 ms and time to replace dirty page is 200 ms. In case of a page fault the probability of being dirty is 0.5. If a memory access takes 100 ms. The effective access time is ___ ms?

asked Jan 11 in Operating System by snaily16 (263 points) | 40 views

+1 vote

1 answer

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Gateforum Test Series: Set Theory & Algebra - Sets

asked Jan 9 in Set Theory & Algebra by Gupta731 Active (4.8k points) | 64 views

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Gateforum Test Series: Algorithms - Time Complexity

asked Jan 9 in Algorithms by Gupta731 Active (4.8k points) | 56 views

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Gateforum Test Series: Databases - Transactions
Which of the following is false? a)All the schedules which are allowed under basic time stamp ordering protocols are also allowed under Thomas write rule. b)Schedules which are allowed under Thomas write rule are also allowed under ... are not allowed Thomas write rule are also not allowed in a multi-version timestamp ordering protocol. d)None.

asked Jan 5 in Databases by Parth Shah Junior (689 points) | 31 views

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Gateforum Test Series: General Aptitude - Logical Reasoning
Direction:Each data sufficiency problem consists of a question and two statements,labeled $(1)$ and $(2)$,which contain certain data.Using these data and your knowledge of mathematics and everyday fact(such as the number of days in july or the meaning of the word ... $Q2)$ Is $m>n?$ $(1)n-m+2>0$ $(2)n-m-2>0$

asked Jan 4 in Numerical Ability by Lakshman Patel RJIT Boss (34.3k points) | 43 views

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Gateforum Test Series
$a=a+100$ in function foo, does it increases the value of a by 100 or just increments the address.

asked Jan 2 in Programming by Gupta731 Active (4.8k points) | 44 views

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Gateforum Test Series: Graph Theory - Graph Matching

asked Jan 2 in Graph Theory by Gupta731 Active (4.8k points) | 42 views

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Gateforum Test Series

asked Jan 2 in Algorithms by Gupta731 Active (4.8k points) | 48 views

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Gateforum Test Series

asked Jan 2 in Set Theory & Algebra by Gupta731 Active (4.8k points) | 25 views

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Gateforum Test Series: Computer Networks - Sliding Window
Suppose you are designing a sliding window protocol for a $1Mbps$ point to point link which has one way latency of $1.25s$. Assuming that each frame carries $1kB$ of data, determine the minimum number of bits required for the sequence number. Answer provided - $9$ bits.

asked Dec 24, 2018 in Computer Networks by Gupta731 Active (4.8k points) | 61 views

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Gateforum Test Series: Programming & DS - Linked Lists

asked Dec 24, 2018 in DS by Gupta731 Active (4.8k points) | 92 views

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Gateforum Test Series: Digital Logic - Floating Point Representation
What is the largest mantissa we can store in floating-point format if the size of the mantissa field is m-bit and exponent field is e-bit? The mantissa is normalized and has an implied $1$ in the left of the point. Normalized form of mantissa is 1.M

asked Dec 24, 2018 in Digital Logic by Gupta731 Active (4.8k points) | 59 views

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Gateforum Test Series: Algorithms - Minimum Spanning Trees

asked Dec 23, 2018 in Algorithms by Gupta731 Active (4.8k points) | 123 views

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Gateforum Test Series: Operating System - Process Synchronization
which of the following statement is true with respect to the following program? unsigned long flags; Acquire(lock); .. if(something_bad){ return ERROR; } Release(lock); return 0; The program acquires and release lock ... lock, The Release(lock) statement should be moved inside the If(something_bad) , block Both B and C

asked Dec 21, 2018 in Operating System by Shivam Kasat Active (3.1k points) | 77 views

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Gateforum Test Series: Digital Logic - Flip Flop

asked Dec 20, 2018 in Digital Logic by Gupta731 Active (4.8k points) | 108 views

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23

Gateforum Test Series: Databases - Sql
the table “Sales89” contains information about the address,zip,sale-date,price and inflamation-adjusted “real-price” of 222 sales of single family homes in calcutta during 1989.Here is the table schema

asked Dec 19, 2018 in Databases by Shivam Kasat Active (3.1k points) | 61 views

+1 vote

2 answers

24

Gateforum Test Series: Databases - Indexing
suppose that in a file organization record size(R)=150 bytes , block size (B)=512 bytes. there are totally 30000 records. the data field on which indexing is done is 9 bytes and block pointer size is 7 bytes how many block access will be needed to access a data item in case of single level primary indexing?

asked Dec 19, 2018 in CO & Architecture by Shivam Kasat Active (3.1k points) | 62 views

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1 answer

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Gateforum Test Series: Programming & DS - Programming In C
Can anyone explain how will the second parameter gets passed ?

asked Dec 15, 2018 in Programming by Shivam Kasat Active (3.1k points) | 97 views

+2 votes

2 answers

26

Gateforum Test Series: Programming & DS - Binary Tree
Suppose binary tree has only three nodes A,B and C, and you are given the post order traversal of tree as B-A-C . The exact pre order traversal of the tree is? A)C-A-B B)A-B-C C)C-B-A D)Can't be determined from given information.

asked Dec 11, 2018 in DS by Parth Shah Junior (689 points) | 90 views

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27

Gateforum Test Series: Digital Logic - Digital Counter
The MOD value (or) number of states in the ripple counter as shown in the figure is? Answer given: Mod 7 counter. My doubt is that won't it go till 111 and then the counter is cleared as the input to NAND gate is taken from the output of the flipflops?

asked Dec 11, 2018 in Digital Logic by Parth Shah Junior (689 points) | 26 views

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28

Gateforum Test Series: Digital Logic - Digital Counter
The circuit shown in figure is using one 4-bit BCD counter and one 4-bit binary counter. The MOD value for the counter is ?

asked Dec 11, 2018 in Digital Logic by Parth Shah Junior (689 points) | 50 views

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Gateforum Test Series: Databases - Indexing
Can anyone explain this in detail???

asked Dec 9, 2018 in Databases by nag.swarna (235 points) | 40 views

+1 vote

2 answers

30

Gateforum Test Series: Programming & DS - Programming In C
What is the output of the following program? $main()$ { $char *s[]=\left \{ “ice”, “green”, “cone”, “please”\right \};$ $char **ptr[]=\left \{ s+3, s+2, s+1, s\right \};$ $char ***P=ptr;$ $printf(“\%s”,**++P);$ } Ice Green Cone Please I think the answer should be $B$ but $C$ is provided as answer.

asked Dec 9, 2018 in Programming by Gupta731 Active (4.8k points) | 102 views

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