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CBSE 2009 2010

The solutions for the AIEEE 2009 Exam are not out yet.

The All India Engineering Entrance Examination (AIEEE) will held all across the country on the 23th April 2009.

The pattern of  AIEEE 2009 exam will be same as of AIEEE 2008.

Get the solutions to AIEEE 2009 from all the leading coaching institutes right here on this website on 26rd April midnight.You can discuss about the AIEEE 2009 Paper using the comment form below after registering.

http://www.icbse.com/2009/66/aieee-solutions-answer-keys-2009.html

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The CBSE 2009 Board results are not out yet.

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CBSE Board Results 2009 Class X and Class XII

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• 5 Ways to Improve Your Memory ~ For Students.
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CHANDIGARH: What is the mantra for cracking the board exams? CBSE says the success depends on the attitude. “It is important that we learn to be
positive whenever we are preparing for examinations. To counter the tension linked with it, the solution lies in developing the right attitude towards examinations and in understanding how to sail through them smoothly. Our attitude and confidence would take us to success apart from our awareness of our own strengths and limitations,” it states.

Many students complain about forgetting the answers to questions while writing the question paper. There are others who are constantly struggling with their time-tables and are not able to devote substantial time to each subject. The reasons for all these problems are more often than not the exam fever or stress and anxiety.

In the last few weeks, counsellors deputed by CBSE as well as UT education department received many such calls from students on these matters. Jayanti Banerjee, a CBSE counsellor, said, “The most important job of a counsellor is build the confidence of students. I have received many calls whereby students tell me they start forgetting answers as the exam approaches.”

However, problems could be overcome by following simple study tips and special guidelines called memorization mantras offered by Central Board of Secondary Education (CBSE).

The foremost advice of CBSE to students is that they should start their study or write the test in a relaxed mood. It cautions students against engaging in a sport or tiring themselves before they sit either for a test or a study period and ensure that they are not hungry, sleepy, tired, thirsty and don’t need to go to the toilet before they sit to study or give a test. This would ensure that there are no unnecessary interruptions.

CBSE has time and again laid emphasis on time management for effective learning. It tells students not to create an overly restrictive schedule that doesn’t work and then feel guilty about it. “Telling oneself that scheduling just doesn’t work for him is a common mistake” is another mandate.

As the examinations have started, students have been advised that instead of passively reading a textbook and not really paying attention, they should actively engage their mind in the act of reading, thereby improving comprehension and retention capacity. The more students involve their mind in reading, the better they would remember and score good marks. This strategy could be put to good use for reading any text in science, social studies and languages.

Tension could be seen on the faces of the students appearing at the CBSE Class X and XII and ICSE Class X examinations that started at
different centres in the state capital on Monday.
A large number of guardians jostled with each other at the gates of these centres to ensure their wards reached examination halls on time.

Though there was tension among the guardians, a fair-like situation prevailed at the gates of these centres. Several `thelawallas’ had set up their stalls near these schools selling ice-creams and other eatables. Ramesh Kumar, a student of DAV, Board Colony, Shastrinagar, was tense as he reached Notre Dame Academy for appearing at the examination in the morning. He, however, heaved a sigh of relief as he came out after the examination. “Tension to hota hai, lekin paper bahut hi easy tha (Yes there was tension, but the chemistry paper was very easy and I enjoyed doing it),” he said.

His classmate, Tanush, also a student of DAV, Shastrinagar, said that he had prepared for his examinations very coolly. “Yes, there was some tension, but things passed off easily,” he said.

Navneet was very cool. “I used to take a break during my studies. I had prepared very well for the examination and the paper was also very easy,” he said.

Birendra Kumar was waiting anxiously at the gate of Notre Dame Academy as his daughter, Nitika Rao, was appearing at the examination. He said that she has prepared well. “All depends on how she writes the paper,” he said.

Some other guardians, including mothers, could be seen taking shelter under the trees at the gate of the school. Their topic of discussion mainly centred around their wards and food that they had prepared at their houses.

Rajiv Ranjan, a student of Prema Lok Mission, was giggling with his friends when this scribe confronted them at the gate of Loyola High School. He was satisfied with his performance at the examination.

Mrinal Shekhar, of the same school, said, “Yes, there was much tension before the examination. But the paper was easy and I did well.”

Kunal Shekhar, also from Prema Lok Mission, said that he had expected much tougher paper. Yet another student, Rahul Sharma of Prema Lok Mission, was also satisfied with his performance at CBSE Plus Two examination. Coming out of Loyola High School, he said that at first he was nervous. “But things went well though I was sick,” he added.

While some students giggled with each other, some others were seen cooling themselves with ice-creams. Some of the guardians were seen inquiring from their wards about the question papers while some others hugged their wards as they said the paper was very easy and they had done very well.

CBSE Datesheet for 2009 Board Exams has been

released by CBSE !

• Datesheet for class X

• Datesheet for class XII

Q. 1. Define any two features of OOPs. Also give suitable example in C++.

Q. 2. (a) Name the Header file(s) that shall be needed for successful compilation of the

following C++ code

void main()

{

int a[10];

for(int i=0;i<10;i++)

{

cin>>a[i];

if(a[i]%2==0)

a[i]=pow(a[i],3);

else

a[i]=sqrt(a[i]);

if(a[i]>32767)

exit(0);

}

getch();

}

(b). Rewrite the following program after removing syntactical error(s) if any. Underline each correction.

#include

type def int integer;

struct number

{

integer a [5];

}

void main()

{

number x;

for(int i=0;i<5;i++)

cin>>x[i].a;

getch();

}

(c). Find the output of the following program :

#include

#include

void main()

{

char *a[2]={”Amit”,”Sumit”};

for(int i=0;i<2;i++)

{

int l=strlen(a[i]);

for(int j=0;j<l;j++,a[i]++)

cout<<*a[i]<<” : “;

cout<<endl;

}

}

(d). Find the output of the following program

#include

class student

{

public:

student()

{

cout<<”\n Computer Science“;

}

~student()

{

cout<<” subject”;

}

}st;

void main()

{

cout<<” is my best“

}

(e). In the following C++ program , what will the maximum and minimum value of r generated with the help of random function.

#include

#include

void main()

{

int r;

randomize();

r=random(20)+random(2);

cout<<r;

}

(f) Define macro with a suitable example.

Q. 2. (a). Differentiate between a Constructor and Destructor in context of class and object . Give suitable example in C++.

(b). Answer the questions (i) and (ii) after going through the following class : class Computer

{

char C_name[20];

char Config[100];

public:

Computer(Computer &obj); // function1

Computer(); //function 2

Computer(char *n,char *C); // function3

};

1. Complete the definition of the function 1.
2. Name the specific feature of the OOPs shown in the above example.

(c). Define a class Student in C++ with the description given below :

private members

rno integer

name array of 40 characters

address array of 40 characters

marks array of 5 integers

percentage float variable

calper() a function which will calculate & return the percentage of a student.

public members

init() function to ask and store the values of rno, name, address and marks in 5 subjects.

display() function to which will invoke calper () and display the details of the item in the following format :

MARK SHEET

Roll No :

Name :

Address :

Marks :

Percentage :

Also create main() function which will invoke all the public member functions.

(d). Answer the questions (i) to (iv) based on the following code :

class Employee

{

int id;

protected :

char name[20];

char doj[20];

public :

Employee();

~Employee();

void get();

void show();

};

class Daily_wager : protected Employee

{

int wphour;

protected :

int nofhworked;

public :

void getd();

void showd();

};

class Payment : private Daily_wager

{

char date[10];

protected :

int amount;

public :

Payment();

~Payment();

void show();

};

1. Name the type of Inheritance depicted in the above example.
2. Name the member functions accessible through the object of class Payment.
3. From the following, Identify the member function(s) that can be called directly from the object of class Daily_wager class
   
   show()
   
   getd()
   
   get()
4. Name the base & derived class of Daily_wager class.

Q. 3. (a) Write a function in C++ which accepts a integer array and its size as an arguments and prints the output (using nested loops) in following format :

Example : if the array is having

1 2 4 5 9

Then the output should be

1

2 2

4 4 4 4

5 5 5 5 5

9 9 9 9 9 9

(b). An array A[10][20] is stored in the memory with each element occupying 2 bytes of storage. If the Base address of array in the memory is 800 , determine the location of A[9][10] when the array is stored as (i) Row Major (ii) column major.

(c). Write a function in C++ to delete a node containing names of student , from a dynamically allocated Queue of names implemented with the help

of following structure :

struct student

{

char name[20];

student *next;

}*front , *rear;

(d). Consider the following portion of a program , which implements a linked

stack for Library . Write the definition of function PUSH(),to insert a new node in the stack with required information struct Library

{

int id;

char names[20];

};

class stack

{

Library *top;

public :

stack()

{

top=NULL;

}

void PUSH();

void POP();

};

(e). Convert the following infix expression into postfix. show the stack status after execution of each operation:

TRUE OR FALSE AND NOT FALSE OR FALSE

Q. 4. (a). Differentiate between ios::app and ios::ate file opening modes.

(b). Write a function in C++ which will print the size of a text file “story.txt” in the form of bytes.

(c). Write a function in C++ which will increase the qty of a particular type of item from the file “stock.dat” . Assuming that the binary file is containing the records of following structure :

struct Products

{

int id;

char Iname[30];

int type;

int qty;

};

Accept the item type from user whose qty has to be increased .

Q. 5. (a). What do you understand by Primary Key

(b). Consider the following tables Employee and salary. Write SQL commands

for the statements (i) to (iv) and give outputs for SQL queries (v) to (viii)

Table : Employee

Eid	Name	Deptid	Qualification	Sex
1	Deepali Gupta	101	MCA	F
2	Rajat Tyagi	101	BCA	M
3	Hari Mohan	102	B.A	M
4	Harry	102	M.A	M
5	Sumit Mittal	103	B.Tech	M
6	Jyoti	101	M.Tech	F

Table : Salary

Eid	Basic	DA	HRA	Bonus
1	6000	2000	2300	200
2	2000	300	300	30
3	1000	300	300	40
4	1500	390	490	30
5	8000	900	900	80
6	10000	300	490	89

1. To display the frequency of employees department wise.
2. To list the names of those employees only whose name starts with ‘H’
3. To add a new column in salary table . the column name is total_sal.
4. To store the corresponding values in the total_sal column.
5. Select name from employee where eid=(select eid from salary where basic= (select max(basic) from salary));
6. select max(basic) from salary where bonus >40;
7. Select count(*) from employee group by sex;
8. select Distinct deptid from Employee;

Q. 6. (a) State and prove the Distributive law algebraically.

(b). Write the equivalent POS expression of following SOP form

F (x,y,z)= ∑ (0,2,4,6)

(c). Draw the Logical circuit of the following expression with the help of NAND gate only

x+yz

(d). Obtain the simplified form of a Boolean expression using K-Map.

F(a,b,c,d)=∑(0,1,2,3,4,7,11,12,14)

Q. 7. (a). What do your understand by Hackers?

(b). Differentiate between Internet & Intranet

(c). Expand the following terminology :

1. SMS
2. FTP

(d). Define Repeater.

(e). A company in Reliance has 4 wings of buildings as shown in the diagram:

Center to center distances between various Buildings:

W3 to W1 50m

W1 to W2 60m

W2 to W4 25m

W4 to W3 170m

W3 to W2 125m

W1 to w4 90m

Number of computers in each of the wing:

W1 150

W2 15

W3 15

W4 25

Computers in each wing are networked but wings are not networked. The company has now decided to connect the wings also.

1. Suggest a most suitable cable layout & topology of the connection between the wings.
2. The company wants internet accessibility in all the wings. Suggest an economic technology .
3. Suggest the placement of the following devices with justification if the company wants minimized network traffic
   
   a)Repeater
   
   b)Hub
   
   c)Switch
   
   d)Bridge
4. The company is planning to link its head office situated in India with the offices at Reliance. Suggest a way to connect it; the company does not want to compromise with the speed of connectivity. Justify your answer.

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