Computer Science Sample Question Paper www.jac.nic.in : Plus Two / 12th Std / +2 Jharkhand

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Document Described : Computer Science Question Paper, Jharkhand Question Paper

COMPUTER SCIENCE
(Optional)
Full Marks : 70
Pass Marks : 23
Time : 3 Hours
All the questions are compulsory.
Figures in the margin indicate ful marks.
The candidates are required to write Question number with every answer.

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1. Choose the correct answer from the given options : 1×15=15
(a) It is a control structure in C++.
(i) Exit (i) Entry
(ii) Loop (iv) Conditional.
(b) An is a combination of operands connected by operators.
(i) equation (i) parenthesis
(ii) expression (iv) operator.
(c) main() function returns an value in C++.
(i) Char (i) Slot
(ii) Float (iv) Integer.
(d) The operator points to the current object being operated upon.
(i) inline (i) static
(ii) this (iv) None of the above.
(e) A is smalest possible block in magnetic disk.
(i) Sector (i) Track
(ii) Block (iv) Cluster.
(f) was the first network based on TCP/IP protocol.
(i) NFS (i) ARPA NET
(ii) NFS NET (iv) ARC NET.
(g) A label is an .
(i) Data (i) Keyword
(ii) Entity (iv) Identifier.
(h) The structure definition ends by a
(i) . (i) ;
(ii) , (iv) /
(j) A stack is a data structure.
(i) dynamic (i) linear
(ii) non-dynamic (iv) Al of the above.
(k) The data transmission rate is expressed in .
(i) Band (i) Broad
(ii) Base (iv) Amplitude.
2. (a) What do you mean by cal by value ?
Write a program in C++ to swap two numbers using cal by value to a func- tion. 5
(b) What do you mean by constructor in C++ ? Point out the features of constructor. 5
(c) Write short notes on: 2.5×2=5
(i) Inline function
(i) Recursive function.
3. (a) Write an algorithm for POP operation in stack. 5
4. (a) Write short notes on: 2.5×2=5
(i) DBA
(i) Data Dictionary.
(b) Write the SQL statement to create table called student with columns specified below: 2
Name CHAR (20)
Rol NUMBER (4)
Class CHAR (10)
Define Rol as Primary key.
Name CHAR (20)
Rol NUMBER (4)
Class CHAR (10)
(c) Write the SQL statement to display all students of a particular class in above table student. 3
6. (a) Write short notes on any two of the
folowing : 2.5×2=5
(i) Twisted pair cable
(i) Coaxial cable
(ii) Fiber optic cables.