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Errors 

(1) No name for the structure.

The correct structure is as follows

struct student

{

short roll.age:;

float fee=1000;

}

It is Constant 

Correct answer is  (d) 2332

(a) 34 

(b) *p=34 and *(ar+2)=25

then *p+*(ar+2)=34+25=59. 

(c) ar++ is invalid but p++ valid, p is the pointer, pointer arithmetic is allowed.

float data type uses 4 bytes of memory

Following are the errors 

(1) Here q is an integer pointer it can not store the address of oat variable b. 

(2) Cannot print *a. 

(3) The pointers p and q are different data types so cannot use relational operator.

The correct code is as given below.

#include<iostream>

using namespace std;

int main()

{

int *p,a=5,*q,b=2;

p=&a;

q=&b;

cout<<p<<*q<<a;

if(p!=q)cout<<p;

cout<<*p*a;

}

char data type uses 1 bytes of memory

(c) float pi = 3.14157.

(c) const oat pi = 3.14157

(c) Key words.

(b) Date of birth, because it contains space.

Type modifiers.

Integer data type uses 2 bytes of memory.

(a) p is special variable and it is called a pointer.

(b) p contains the address of the variable a

(c) #include<iostream>

using namespace std;

int main ()

{

int *p,a=5;

p=&a;

cout<<*p+1<<endI;

cout<<*(p+1);

}

Here p+1 returns (address of the variable a) +4(4 is the size of int data type in Geany C++). *(p+1) returns the content of this next address location.

When the amount of memory to be allocated is known in advance and memory is allocated during compilation itself, it is referred to as static memory allocation. When the amount of memory to be allocated is not known in advance and it is required to allocate memory as and when required during run time, it is known as dynamic memory allocation.

& p means address of p

Correct answer is (a) 0

Yes it is true. A user can give define according to his needs.

#include<iostream>

using namespace std;

struct date

{

int dd,mm,yyyy;

date*ptr;

};

int main()

{

date *ptr;

ptr = new date;

ptr->dd=28

ptr->mm=6;

ptr->yyyy=1983;

cout<<"Your date of Birth is"<<ptr<<"/"<<ptr->mm<<"/"<<ptr->yyyy;

delete ptr;

}

(b) age an identifier

(d) Statements (i) and (iii) are true.

int is the exact data type

(b) Obtaining L-Value of a variable

The data used in computers are different. To differentiate the nature and size of data Data types is used.

Correct answer is (d) S

Correct answer is (a) address of p

For loop is used to execute a statement more than once.

Correct answer is (b) .

Correct answer is (a) int*p = &a,

Correct answer is (a) reference

(c) Related data items and functions, if needed.

(d) Statements (i) and (iii) are true

(d) A pointer stores R-Value of a variable

Proper use of delete operator is heeded

OR 

(1) It causes orphaned memory blocks 

(2) wastage of memory 

(3) insufficient memory 

(4) due to this sometimes system may be hanged

Correct answer is (b) struct

& operator. Operator (Address operator)

Correct answer is (b) Base address

struct keyword is used to specify a structure.

 Correct answer is (b) float*[*a] [8] 

(c) structure_variable.element_name;

‘new’ and ‘delete’ operators.

Nested structure

char month(1 2)[]={ “Jan”,”Feb”,”Mar”, “Apr”,May”,“Jun”,”July”,”Aug”, “Sep”,Oct”,“Nov”,”Dec”};

OR

Yes It is possible. This is called nested structure.

Eg.

struct date

{

short day,month,year

};

struct student

{

int reg_no;

char name[40];

date dob;

};

(a) Polymorphism

(b) #include<iostream>

#include<cmath>

using namespace std;

float area(float r)

{

return(3.14*pow(r,2));

}

int area(int I, int b)

{

return(I*b);

}
void main ()

{

float r,Ac;

int I,b,Ar;

cout <<"Enter the radius of the circle";

cin>>r;

AC = area(r);

cout <<"Enter the length and breadth";

cin>>I>>b;

Ar = area(I,b);

cout<<"Area of circle is"<<Ac;

cout<<"\n area of rectangle is"<<Ar;

}

Here the function names are same but the return type and number of parameters are different hence distinguish the functions.

Correct answer is (d) any data type

Correct answer is (c) /

int a=5; This means ‘a’ is an integer variable that is initialized with the integer value 5. int *a=new int(5). Here ‘a’ is a pointer variable and it allocates memory dynamically and stores a value 5.

Structure or class used to put logically related elements in one unit.

= new ; 

eg: int *P = new int;

struct student

{

int regno;

char name [25];

struct

{

short dd;

short mm;

short yy;

}

dob;

char sex;

};

the structure is a group of different types of logically related data referenced by a single name.