Class
2nd YEAR Federal Board 2009
Paper:Computer science (Objective Type) Time
Allowed: Max.Marks:
Note:Use this paper
to write the answers to the objective questions.No marks will be awarded
for cutting,over-writing
or using a pencil.This paper must be tagged with the answer-book.
1. Insert correct
option.
(1) Which of the following is not a language
processor ?
(a) Compiler
(b)
Interpretor
(c) Assembler
(d)
Debugger
(2) An instruction given to the compiler
before the execution of the program is called.
(a) Global
variable (b) Pre-processor directive
(c) main(
) (d)
Both A and B.
(3) The Process of converting source
code into object code is called.
(a) Compiling
(b)
Linking
(c) Executing
(d)
Debugging
(4) ...........cannot be changed
at run time.
(a) Logical
error (b) Constants
(c) All
of these (d)
Infinite loop.
(5) Type double can accommodate
numbers from.
(a) -65535~
+ 65534 (b)
10-308~10+308
(c) -22147483468~
+ 2147483467 (d) 10-38~10+38
(6) Errors in a computer program
are also called.
(a) Mistakes
(b)
Bugs,
(c) Syntax
errors (d)
Defects
(7) Which of the following is used
to terminate the execution of loop ?
(a) Switch (b)
goto
(c) break
(d) end
(8) Which of the following operator
has lowest precedence ?
(a) !
(b)
= =
(c) +
(d)
=
(9) Which of the following is a
valid character constant ?
(a) a
(b)
''b''
(c) '6'
(d)
=
(10) The conditional operator is some times
called:
(a) Unary
operator (b) Binary operator
(c) Ternary
operator (d) Control statement
(11) What will be the result of expression
a+ = b ?
(a) b+
= a (b) a = ++b
(c) a
= a + b (d) b = b + a
(12) First line of function definition before
the opening brace is called.
(a) Function
declaration (b)
Function definition
(c) Function
declarator / header (d) Call to function
(13) .......provides the basic information
about the function ot the compiler.
(a) Prototype
(b) Functiopn defination
(c) Library
function (d) Body of function
(14) An attribute is a property or characteristics
of.
(a) Entity
(b)
Database
(c) Relation
(d) DBMS
(15) Which of the following is know as collection
of related data ?
(a)
ERD (b)
DBMS
(c)
Database (d) Record
2. Attempt
any THIRTEEN parts.
(1) What will be the output
of the following program ?
# include<stdio.h>void main(void) { char ch; ch
='A'; do { printf (''%c'',ch); ch = ch =1;} while (ch<=fzj;
}
(2) What will be the value
of a, b and c printed by the following program on the screen ?
# include<stdio.h> void main(void) {int a, b, c; a=0; b=1;
c=2; a = b + c;
b=a++; c=++b; printf
(''%d, %d'', a,b,c,);
(3 a) Write an output statement to display
the following on screen.The ''MS-EXCEL''is a spread sheet application.
(b) What causes the error
message ''statement missing;''when this code fragmentt is compiled
? #include<stdio.h>
void main(void) {
printf (''\ n'' printf (''l love pakisatn'');
}
(4) What error message
will be generated by C compiler after compiling these lines ?
#include <stdio.h>
void main (void) { x=10;
printf (''%d'',x);
}
(5) Differentiate between.
(a) scanf ( ) and gets ( ) (b) do
while loop and for loop
(6) What is the purpose
of switch ( ) statement ? Explain with examples.
(7a) Which operator is used to
make compounds conditions in C language ?
(b) In which case of
selection, switch ( ) is preferred over if-Else construct ?
(8a) What would happen if break
is not used in switch( ).
(b) What is the purpose
of default: in switch( )?
(9a) What is the purpose of format
specifiers in C language ?
(b) What is the meaning
of \b, \f and \\ ?
(10) What is the purpose of strcmp(
) function ?
(11a) Write a C statement equivalent to.
x= b - 4ac
2a
(12) If there is a function ''Add''
and it has three in parameters. The function returns the result
of addition
of parameters then:
(a) Write prototype of function.
(b) What will be the header of its function definition?
(c) What will be the return type of function ?
(13) Can a function returns more
than onje value ? Explain with an example.
(14) In how many modes a file can
be opened in C.
(15) Why we need a pointer to FILE
structure in our program when we use standard input/output in a
file?
(16a) What is the different between primary
key and candidate key ?
(b) What is ment by
refrential integrity enforcement in database ?
(17a) How are the entity, attribute,
and instance of an entity are related to one another ?
(b) Show the relation
BORROWER (BORROWERID, Name , Address) and BOOK (BookID
Title,
Author, Data Publiction, BorrowerID) in ERDiagram with the
(i) Degree of relationship.
(ii) Cardinality.
Attempt any THREE questions.
3.
Write a program to generate the following series of numbers.
2 4 6 10
16 26
4. Write
a program that reads a phrase and prints the number of lower case
letters in it using a function
for counting.
5.a) What are
the responsibilities of a DBA ?
b)
Explain the followings:
(i) Primary key. (ii)
Secondary key. (iii) Foreign
key.
6.
A firm uses a database to keep details of its employees. Below is
a part of data base.
(Note: Database is created in Ms-ACCESS)
(i) Give appropriate
data type to each field.
(ii) Which key should
be the primary key and why ?
(iii) Is there any foregn
key or candidate key in this table ?Name the key if exists.
(iv) Write the expression
to find those employees who are getting salary more than RS.10,000/-in
query. |
