Early batch operating systems were the first to include a(n) ____ language.

Which of the following DNS record types will be used for mail transfer if the MX record is not found?

A. CNAME B. A C. PTR D. AAAA

Which of the following operations do random access iterators have?

a) Prefix operator* to make available the container element for use as l-value or r-value. b) Overloaded binary operator+ to add an int value to the iterator to move the place the iterator points forward by the argument number of elements. c) Overloaded binary operator* to multiply the iterator by an int value to move the place the iterator points by a number of elements equal to the argument. d) Overloaded unary operator++ to move the place the iterator points forward by one element. e) Overloaded unary operator-- to move the place the iterator points backward by one element. f) Overloaded operator== and operator!= to determine whether two iterators point to the same element.