Tuesday, 31 March 2015

UGC NET Computer Science Paper II June 2011 - Part 2

11.       From the point of view of the programmer, what are the major advantages of using a high-level language rather than internal machine code or assembly language ?
(A) Program portability            (B) Easy development
(C) Efficiency                           (D) None of the above
Answer: B
12.       What features make C++ so powerful ?
(A) Easy implementation                    (B) Reusing old code
(C) Easy memory management        (D) All of the above
Answer: D
13.       The goal of operator overloading is
(A) to help the user of a class
(B) to help the developer of a class
(C) to help define friend function
(D) None of the above
Answer: A
14.       The scheme of which interpreter translates the source program is known as
(A) Paragraph by paragraph
(B) Instruction by instruction
(C) Line by line
(D) None of the above
Answer: C
15.       Portable program means
(A) Program with wheels                    (B) Independent from its authors
(C) Independent of platform              (D) None of the above
Answer: C

16.       Which of the following is the recovery management technique in DDBMS ?
(A) 2PC (Two Phase Commit)           (B) Backup
(C) Immediate update                         (D) All of the above
Answer: D
17.       Which of the following is the process by which a user’s privileges ascertained ?
(A) Authorization                     (B) Authentication
(C) Access Control                  (D) None of these
Answer: A
18.       The basic variants of time-stampbased method of concurrency control are
(A) Total time stamp-ordering
(B) Partial time stamp ordering
(C) Multiversion Time stamp ordering
(D) All of the above
Answer: D
19.       A transaction can include following basic database access operations :
(A) Read_item(X)                     (B) Write_item(X)
(C) Both (A) and (B)                (D) None of these
Answer: C
20.    Decomposition help in eliminating some of the problems of bad design
(A) Redundancy                      (B) Inconsistencies
(C) Anomalies                          (D) All of the above
Answer: D

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