Which of the following is a valid class declaration in C++

Which of the following forms is used specifically to identify the entity created when encapsulating data inside data link layer headers and trailers

A relational database model uses ……….. to contain and organize information.

Collecting personal information and effectively posting as another individual is a crime known as ……..

The concept of ‘zero administration’ is associated with

………is a special field value, distinct from 0, blank or any other value, that indicates that the value for the field is missing or otherwise unknown.