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(Download) CBSE: Class XII Computer Science Question Paper - 2011 - Set - 2

Central Board of Secondary Education

Class – XII (Year 2011)
Subject – Computer Science (Set - 2)

General Instructions:
(i) All questions are compulsory.
(ii) Marks for each question are indicated against it.
(iii) Use of Calculators is not permitted.

  1. What is difference between Local Variable and Global Variable ? Also give a suitable C++ code to illustrate both.
  2. What do you understand by Union & Cartesian Product operations in Relational algebra.?
  3. What is VoIP ?