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

Question # 1

Why the ampersand (& )used in scanf is function?

Ans 1: Ampersand (& )in scanf function: The ampersand is the address-off operators, In C, if we want to pass parameters by reference the address of (&) operators should be used. The scanf () function reads formatted input and has to put this input into something like a variable .

Question # 2

Find output of the following code .
Int a = 1,b =6;
If (a +b <7);
{
Printf ("%d",a);
}
Else
{
Printf {"%d",b);
}

Ans 1: Output;
B= 6

Question # 3

Define Relationship.

Ans 1: The relationship indicates how the entities.objects are connected or related each other.
- All the relationship defines the relevant connection between both objects.
- All the relationship are bi-directional.

Question # 4

Differentiate between parent table and child table.

Ans 1: Parent Table: The table to which the foreign key is refers is called parent table.
Ans 2: Child Table:The table in which the foreign key is found is called as dependent table or child node.

Question # 5

Define List Box .

Ans 1: A List Box is a control that provides a means of displaying a list of items (text,numbers,dates or whatever) on an Access form. Unlike the Combo Box it lacks a text box at the top in which the user can type.The list remains on view all the time, giving the List Box the appearance of a scrolling text box.

Question # 6

Trace the output.Int a = 5,b = 10;If a > b; printf ("Low Triangle")Else("Huge Triangle");

Ans 1: Output: Huge Triangle

Question # 7

Trace the output .
Int n =6;
N+ +;
Printf ("%d",n);

Ans 1: Output :
n = 7

Question # 8

Trace the error in the following code.
#include <stdio.h>
Void main (void)
{ int x= 4
Y =x+10
printf("%d",x+y);
}

Ans 1: Errors:
- 1st errors is terminator is not present in two statements.
- 2nd error is variable y is not declared properly.

Question # 9

List different types of keys.

Ans 1: List of Keys:
1. Primary Key
2. Secondary Key
3. Sort/Control Key
4. Composite/Concatenate Key

Question # 10

Difference between Function Definition and Function Declaration:

Ans 1: Function Definition:
- A function definition provides the actual body of the function.
Syntax:
Return_type
FunctionName
(Parameter_list)
{
Body of the function
}
Ans 2: Function Declaration::
- A function declaration introduces the function name and its type. A function definition associates the function name/type with the function body.
Syntax:
Return_type FunctionName
(Parameter_list)
{
Executable Statement(s)
return expression:
}

Question # 11

Convert the following loop in do-while loop.
For (i=3;i <39; i+=6)
{
Printf ("%d/n",i);
}

Ans 1: Conversion:
Void main( )
{
Int I =1;
Do
{
Fprintf("%d/n",i);
i+ =6;
}while (i<39);
}

Question # 12

Differentiate between Combo Box and List Box.

Ans 1: Combo box:We can select any one option from list.We can add information at runtime.We have only drop down facility.
Ans 2: List Box:We can select multiple option from list.We can not add information at runtime.We have both drop up and drop down facility.

Question # 13

Predict the output of the following.
Float f = 3.14159
Print f (" f = %4.2f" , f);

Ans 1: Output:
f =3.14

Question # 14

Trace the errors.
#include<stdio.h>
Void main()
{
printf ("High Level Language")
}

Ans 1: Errors:
- Errors is terminator sign has not been used in printf statement.
Main()
{
printf("555\n");
printf ("55");
}

Question # 15

What is text file?

Ans 1: A text file is a name collection of characters saved in secondary storage e.g on a disk. A text file has not fixed size.To mark the end of text file, a special end-of-file character is placed after the last character in the file (denoted by EOF in C.) When we create a text file using a text editor such as notepad, pressing the ENTER key causes a newline character (denoted by \n in C )to be placed at the end of each line, and an EOF marker is placed at the end of the file.

Question # 16

Trace the output.
Int I = 10
Printf ("%3d",i);

Ans 1: Output: i=10

Question # 17

Define Data integration.

Ans 1: In a databases ,information is coordinated from different files and operated on a single file.Logically the information is centralized,physically data may be located on different devices i.e scattered around over on different locations,connected through data communication links.

Question # 18

Trace the error in the following code.
Void main (void);
{
Int a , b;
A= -10
B = 40
If (a< 0);
B=SQRT (a);
Printf ("result = %f", b );
Getch( );
}

Ans 1: Errors:
- 1st errors is ; terminator sign has been used with Main starting which is not allowed.
- 2nd error terminatorsign has been not used in statements where variable are being defined.
- 3rd eror is terminator sign has been used with If statement which is not allowed .

Question # 19

List Some Advantage of IDE .

Ans 1: 1) Less Time and Effort : The entire purpose of an IDE is to make developing faster and easier. Its tools and features are supposed to help you organized resources, prevent mistakes, and provide shortcuts.

2) Enforce Project or Company Standards : Simply by working in the same development environment ,a group of programmers will adhere to a standard way of doing things. Standard can be further enforced if the IDE offers predefined templates, or if code libraries are shared between different team members working on the same project.
3) Project Management : This can be twofold .First many IDEs have documentation tools that either automate the entry of developer comments, or many actually force developers too write comments in different areas.Second, simply by having a visual presentation of resources. It should be a lot easier to know how an application is laid out as opposed to traversing the file system for arcane files in the file system.

Question # 20

Writes any two rules for naming Variables.

Ans 1: 1) A variable name can consist of letters, digits, and the underscore character (_)
2) A variable can only be declared for only one data type.

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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Computer Science ICS Part 2 Computer Science Short Questions Preparation

Why the ampersand (& )used in scanf is function?

Find output of the following code .Int a = 1,b =6;If (a +b <7);{Printf ("%d",a);}Else{Printf {"%d",b);}

Define Relationship.

Differentiate between parent table and child table.

Define List Box .

Trace the output.Int a = 5,b = 10;If a > b; printf ("Low Triangle")Else("Huge Triangle");

Trace the output .Int n =6;N+ +;Printf ("%d",n);

Trace the error in the following code.#include <stdio.h>Void main (void){ int x= 4 Y =x+10 printf("%d",x+y);}

List different types of keys.

Difference between Function Definition and Function Declaration:

Convert the following loop in do-while loop.For (i=3;i <39; i+=6){Printf ("%d/n",i);}

Differentiate between Combo Box and List Box.

Predict the output of the following.Float f = 3.14159Print f (" f = %4.2f" , f);

Trace the errors.#include<stdio.h>Void main(){ printf ("High Level Language")}

What is text file?

Trace the output.Int I = 10Printf ("%3d",i);

Define Data integration.

Trace the error in the following code.Void main (void);{Int a , b;A= -10B = 40If (a< 0);B=SQRT (a);Printf ("result = %f", b );Getch( );}