12th Class English Medium Computer Science Full Book Online Short Questions Preparation

Question # 1

What is a Relational Operators?

Ans 1: Relational Operators : Relational Operators is used to compare two values.These operators always evaluates to true or false. They produce a non-zero value (in most cases 1) if the relationships evaluates to true and a 0 if the relationship evaluates to false.

Question # 2

Define two database objects.

Ans 1: 1) Database Objects :

a) Forms : The form object of database is used to enter data into database, edit data and view data from database. You can add, updates and delete records in your table by using a form,
b) Reports: The Reports object of database is used to retrieve and present data in a formatted way. The report can be printed. Some reports are simply a list of the records in the database, one record after the other.

Question # 3

Define Delimiters?

Ans 1: Delimiters : Next to the function definition are braces, which indicate the beginning and end of the function body. These braces are called delimiters. The opening braces {indicates the beginning of a block of code (set statement) .while the closing brace) represents the end of a block of code.

Question # 4

What is the difference between High level language and low Level language?

Ans 1: High Level Language : Program languages whose instructions resemble the English Language are called high level languages. Every high level language define a set of rule of writing. Programs called syntax of the language. Every instruction in the high level language must confirm to its syntax .
Ans 2: Low Level Language :A low level language is a programming language that deals with a computers hardware components and constraints. It has no (or only a minute level of) abstraction in reference to a computer and works to manage a computers operational semantics. A low-level language may also be referred to as a computer native language.

Question # 5

Give any four examples of high-level language?

Ans 1: There are the following examples of high level languages .CC++JavaPascalFortanBasicCOBOL

Question # 6

Why break statement is used in switch statement?

Ans 1: Break Statement: The statement following the first label with a matching evaluated value are executed until a break statement is encountered .The
Break causes the rest of the switch to be skipped. If all break statements are omitted from the switch statement, the code from the first true case down to the end of the switch statement will execute sequentially.

Question # 7

Differentiate between Compiler and Interpreter.

Ans 1: Compiler : Compiler translate the source program into an object program with .obj extension . A Compiler is a special program that processes statements written in a particular programming language and turns them into machine language or "code" that a computer processor uses.
Ans 2: Interoperate : An Interpreter is a computer program that directly executes I.e performs, instructions written in a programming or scripting language, without requiring them previously to have been compiled into a machine language program.

Question # 8

Find the error in the following code.
#include (conio,);
#include (stdio.h);
Void main ()
{
printf("OK");
}

Ans 1: Errors: Error is brackets do not used in library.

Question # 9

Write the output of the following program fragments.
N= 0;
While (n<=4)
{
Printf ("%3d %3d \n", n,10=n);
N + +;
}

Ans 1: Output:
0, 10
1, 9
2, 8
3, 7
4, 6

Question # 10

Define compound assignment statement.

Ans 1: Compound Assignment Statement: The statement in which we used compound assignment operators is called compound assignment statement

Question # 11

List any four types of operations in C.

Ans 1: There are four following types of Operators in C:
1. Arithmetics Operators
2. Relational Operators
3. Logical Operators
4. Assignment Operators

Question # 12

List types of control structure.

Ans 1: Types of Control Structures: There are the following types of control structure:
- Sequence
- Selection
- Repetition.

Question # 13

Describe the purpose of file handling .

Ans 1: File Handling: A file represents a sequence of bytes on the disk where a group of related data is stored. File is created for permanent storage of data. It is a readymade structure.
In C Language, we use a structure pointer of file type to declare a file.
File *fp
Types of function: C provides a number of functions that helps to perform basic file operations.

Question # 14

Differentiate between Primary key and Secondary key.

Ans 1: Primary Key:In a relation,the attributes the column or a combination of attributes that uniquely identifies a row or a record.
Ans 2: Secondary Key: A secondary key is non unique field that is used as a secondary key.

Question # 15

Define go to statement.

Ans 1: The go to statement performs an unconditional transfer of control to the name label.The label must be in the same function. A label is meaningful only to a goto statement: in any other context, the labeled statements is
Executed without regard to the label .
General Form: The general form of the goto statement is as follows:
Goto label:
.................,
Label: statement

Question # 16

Trace the output .
Int a =1;
While (a < =6)
{
printf("\n a=%d",a)
a+ =1;
}

Ans 1: Output: 1
2
3
4
5
6

Question # 17

Predict the output of the following code.
Printf ("\n\n\n****\n");

Ans 1: Output:
**
***
****

Question # 18

Trace the output.
#include <stdio.h>
Void main (void)
{
int x = 1;
int y = 2;
x =x + 1;
y =y+ x ;
printf( "%d\n %d", x, y);
}

Ans 1: Output:
x = 2
y = 4

Question # 19

What is Control String in printf function?

Ans 1: Control String: The format of each expression may be controlled using a control string that precedes the expression and is separated by a colon(:).These control string use the same structured as the control strings in C printf() routines.
Example: The following specifies that each element of the parallel array .A will be printed to 5 decimal places.
Control strings also may be applied to sequential expressions.
The colons have been used strictly to separate control strings from expressions, so each colon must follow a string and precede an expression.

Question # 20

Find the output of the following code.
Printf( "Programming\t is \n very \t interesting");

Ans 1: Output:
Programming is
very interesting

Test Name	Total Questions	PDF File	Launch Test
ICS Part 2 Computer Science Chapter 1 Short Questions Preparation	22	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 2 Short Questions Preparation	18	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 3 Short Questions Preparation	16	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 4 Short Questions Preparation	13	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 5 Short Questions Preparation	25	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 6 Short Questions Preparation	20	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 7 Short Questions Preparation	23	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 8 Short Questions Preparation	43	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 9 Short Questions Preparation	48	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 10 Short Questions Preparation	95	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 11 Short Questions Preparation	64	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 12 Short Questions Preparation	29	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 13 Short Questions Preparation	16	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 14 Short Questions Preparation	12	Download PDF	Launch Test

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12th Class Computer Science Short Questions Test With Answer for Computer Science Full Book

Computer Science ICS Part 2 Computer Science Short Questions Preparation

Computer Science ICS Part 2 Computer Science Short Questions Preparation

What is a Relational Operators?

Define two database objects.

Define Delimiters?

What is the difference between High level language and low Level language?

Give any four examples of high-level language?

Why break statement is used in switch statement?

Differentiate between Compiler and Interpreter.

Find the error in the following code.#include (conio,);#include (stdio.h);Void main (){ printf("OK");}

Write the output of the following program fragments.N= 0;While (n<=4){Printf ("%3d %3d \n", n,10=n);N + +;}

Define compound assignment statement.

List any four types of operations in C.

List types of control structure.

Describe the purpose of file handling .

Differentiate between Primary key and Secondary key.

Define go to statement.

Trace the output .Int a =1;While (a < =6){ printf("\n a=%d",a) a+ =1;}

Predict the output of the following code.Printf ("*\n**\n***\n****\n");

Trace the output.#include <stdio.h>Void main (void){ int x = 1; int y = 2; x =x + 1; y =y+ x ; printf( "%d\n %d", x, y);}

What is Control String in printf function?

Find the output of the following code.Printf( "Programming\t is \n very \t interesting");

12th Class Computer Preparation

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