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UGC-NET | UGC NET CS 2014 Dec - III | Question 26
How many characters per second (7 bits + 1 parity) can be transmitted over a 3200 bps line if the transfer is asynchronous ? (Assuming 1 start bit and 1 stop bit)(A) 300(B...
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UGC-NET
UGC-NET | UGC NET CS 2014 Dec - III | Question 25
For n devices in a network, ________ number of duplex-mode links are required for a mesh topology.(A) n(n + 1)(B) n (n – 1)(C) n(n + 1)/2(D) n(n – 1)/2 Answer: (D) Explana...
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UGC-NET
UGC-NET | UGC NET CS 2014 Dec - III | Question 24
Regular expression for the complement of language L = {an bm | n ≥ 4, m ≤ 3} is(A) (a + b)* ba(a + b)*(B) a* bbbbb*(C) (λ + a + aa + aaa)b* + (a + b)* ba(a + b)*(D) None o...
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UGC-NET
UGC-NET | UGC NET CS 2014 Dec - III | Question 23
Given two languages:L1 = {(ab) n ak | n > k, k ≥ 0}L2 = {an bm| n ≠ m}Using pumping lemma for regular language, it can be shown that(A) L1 is regular and L2 is not regula...
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UGC-NET
Implementation of Locking in DBMS
Locking protocols are used in database management systems as a means of concurrency control. Multiple transactions may request a lock on a data item simultaneously. Hence,...
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Misc
Technical Scripter
DBMS
GATE CS
UGC-NET | UGC NET CS 2014 Dec - III | Question 22
The pushdown automation M = ({q0, q1, q2 }, {a, b}, {0, 1}, δ, q0 , 0, {q0}) withδ (q0, a, 0) = {q1 , 10} δ (q1, a, 1) = {q1 , 11} δ (q1, b, 1) = {q2 , λ} δ (q2, b, 1) = {...
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UGC-NET
Discrete Mathematics | Representing Relations
Prerequisite - Introduction and types of RelationsRelations are represented using ordered pairs, matrix and digraphs:Ordered Pairs -In this set of ordered pairs of x and y...
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GATE CS
Engineering Mathematics
Discrete Mathematics
UGC-NET | UGC NET CS 2014 Dec - III | Question 21
Which of the following statements is not true?(A) MPI_Isend and MPI_Irecv are non-blocking message passing routines of MPI.(B) MPI_Issend and MPI_Ibsend are non-blocking m...
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UGC-NET
UGC-NET | UGC NET CS 2014 Dec - III | Question 20
How many tokens will be generated by the scanner for the following statement ?x = x ∗ (a + b) – 5;(A) 12(B) 11(C) 10(D) 07 Answer: (A) Explanation: x|1 =|2 x|3 ∗|4 (|5a|6 ...
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UGC-NET
UGC-NET | UGC NET CS 2014 Dec - III | Question 19
Consider the following statements S1, S2 and S3 :S1 : In call-by-value, anything that is passed into a function call is unchanged in the caller’s scope when the function r...
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UGC-NET
UGC-NET | UGC NET CS 2014 Dec - III | Question 18
Match the following: List - I List - II (a)Cavalier Projection (i)The direction of projection is chosen so that there is no foreshortening of lines pe...
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UGC-NET
UGC-NET | UGC NET CS 2014 Dec - III | Question 17
In Cyrus-Beck algorithm for line clipping the value of t parameter is computed by the relation:(Here P 1 and P 2 are the two end points of the line, f is a point on the bo...
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UGC-NET
UGC-NET | UGC NET CS 2014 Dec - III | Question 16
Consider a triangle represented by A(0, 0), B(1, 1), C(5, 2). The triangle is rotated by 45 degrees about a point P(–1, –1). The co-ordinates of the new triangle obtained ...
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UGC-NET
UGC-NET | UGC NET CS 2014 Dec - III | Question 15
A technique used to approximate halftones without reducing spatial resolution is known as _________.(A) Halftoning(B) Dithering(C) Error diffusion(D) None of the above Ans...
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UGC-NET
UGC-NET | UGC NET CS 2014 Dec - III | Question 14
Match the following: List - I List - II (a) Tablet, Joystick (i) Continuous devices (b) Light Pen, Touch Screen (ii) Direct devices ...
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UGC-NET
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