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[QUOTE=mariammal;186231][B]Document Described :[/B] Computer Science Question Paper, Jharkhand Question Paper

[B]COMPUTER  SCIENCE
(Optional)[/B]
[B]Full Marks  [/B]: 70
[B]Pass Marks  [/B]: 23
[B] Time : [/B]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.

[URL]http://jac.nic.in/model_questions.htm[/URL]
[URL]http://jac.nic.in/pdf/model_questions/Science_ComputerScience12_08.pdf[/URL]

[B]1. Choose  the  correct  answer  from  the  given options  [/B]: 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.[/QUOTE]

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