Some programmers refer to a catch block as a catch ____.

XPath 2.0 introduced the _____ function to retrieve data from external XML files.

A. ?document() B. ?import() C. ?retrieve() D. ?doc()

What is an intractable problem?

a. A problem solvable by a super-polynomial algorithm b. A problem that cannot be easily defined c. A problem that requires infinite time or space to solve d. A problem that has too many algorithms to solve it