UGC-NET December 2019 Solved Questions with Explanations (51-60)

UGC-NET December 2019 Solved Questions with Explanations (51-60)

51.  Who is the creator of ‘R’ statistics?
A.    Dale H. Bent and H.E. Garrett
B.     Norman H. Nie and C. Hadlai Hull
C.     Ross Ihaka and Robert Gentleman
D.    Harold Cramer and John Chambers

Answer: C (Ross Ihaka and Robert Gentleman)

Notes: R, first released in 1993 under GNU GPL License is a programming language and free software environment for developing statistical software and data analysis, initially developed by Ross Ihaka and Robert Gentleman.

52.  Loss of signal power as light travel down the fiber is called:
A.  Attenuation
B.   Propagation
C.   Scattering
D.  Interpretation

Answer: A (Attenuation)

Notes: Attenuation refers to any reduction in the strength of a signal. It occurs with any type of signal, whether digital or analog. It is a natural consequence of signal transmission over long distances.

53.  The g-Index was proposed by __.
A.  Jorge Hirsch
B.   Bill Smith
C.   Leo Egghe
D.  Olle Persson

Answer: C (Leo Egghe)

Notes: The g-index is an index for quantifying productivity in science, based on publication record (an author-level metric). It was suggested in 2006 by Leo Egghe.

54.  ‘Indian Library Review’ is a blog of __.
D.  National Library of India

Answer: D (National Library of India)

55.  Who proposed ‘General System Theory of Communication’?
A.  Robert T. Craig
B.   W. R. Ashby
C.   Shannon and Weaver
D.  Ludwig Von Bertalanffy

Answer: D (Ludwig Von Bertalanffy)

Notes: The System theory focuses on understanding the organization as an open system that transforms inputs into outputs. This theory is based on the work of a biologist, Ludwig von Bertalanffy, who believed that a general systems model could be used to unite science. This theory was first proposed by Bertalanffy in 1928.

56.  The method of communication in which transmission takes place in both the directions, but only in one direction at a time is called:
A.  Simplex
B.   Full Duplex
C.   Half Duplex
D.  Two-wire Circuits

Answer:  C (Half Duplex)

Notes: In the half-duplex mode of transmission the communication is two directional but the channel is alternately used by both the connected device. In other words, in a half-duplex system, both parties can communicate with each other, but not simultaneously; the communication is one direction at a time. Example: walkie-talkie.

57.  Conservative, moderate and liberal theories of reference service are propounded by _.
A.  S. R. Ranganathan
B.   James I. Wyer
C.   W. A. Katz
D.  Krishan Kumar

Answer:  B (James I. Wyer)

Notes: James I. Wyer theorized in 1930 that reference work could be either ‘conservative, moderate or liberal’ in his book ‘Reference Work: A Textbook for Students of Library Work and Librarians’.

58.  Arrange the following information networks according to their year of launching:
      a)    NICNET                
      b)    NKN
      c)    INFLIBNET
      d)    ERNET
         A.    (c), (a), (b) and (d)
         B.     (a), (d) (c) and (b)
         C.     (a), (c), (d) and (b)
         D.     (d), (b), (a) and (c)

Answer: B

Notes: NICNET (1977); ERNET (1986); INFLIBNET (1991); NKN (2010)

59.  Identify the services of OCLC from the following:
      a)    Infoport                  
      b)    OJAS
      c)    First Search
      d)    Question Point
         A.    (a), (c) and (d) are correct
         B.    (b), (c) and (d) are correct
         C.    (c) and (d) are correct
         D.    (a), (b) and (d) are correct

Answer: C

60.  Which of the following steps are involved in the selection of documents for digitization?
      a)    Checking the copyright                  
      b)    Checking the research significance of the document
      c)    Checking for price
      d)    Checking the condition of document
         A.    (a), (c) and (d) are correct
         B.    (b), (c) and (d) are correct
         C.    (c) and (d) are correct
         D.    (a), (b) and (d) are correct

Answer: D

Post a Comment