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 ?

(E-Book) CBSE Board Class 12th Papers PDF : Computer Science

Courtesy: cbse.nic.in