Taking into account only the structure of the ipv4 packet headers: what is the maximum permittable size (in bits) for an ipv4 packet? how many ipv4 addresses can exist?

1)consider the following code snippet: #ifndef book_h#define book_hconst double max_cost = 1000.0; class book{public: book(); book(double new_cost); void set_cost(double new_cost); double get_cost() const; private: double cost; }; double calculate_terms(book bk); #endifwhich of the following is correct? a)the header file is correct as given.b)the definition of max_cost should be removed since header files should not contain constants.c)the definition of book should be removed since header files should not contain class definitions.d)the body of the calculate_terms function should be added to the header file.

What does 21 pilots middle aged name as a band 15 years prior to them naming their band 21 pilots?

When you interpret the behavior of others according to your experiences and understanding of the world your evaluation is