What is the protocol of choice for very simple applications that never need more than a single packet?

A placeholder that displays preset content such as the current date or file name is known as a ________

Fill in the blank(s) with correct word

Select all that apply. Which of the following are member functions of the vector class that use emplacement?

a. insert() b. push_back() c. emplace() d. emplace_back() e. None of these