The _____ language, which was introduced by W3C, is used to access and navigate the contents of a data tree.

A ________ query is used when you want to find the rows in one table that do not have a match in the other table

A) Find Duplicates B) Crosstab C) Find Unmatched D) Simple

A security zone is an area within a network that consists of a group of systems and other components with the same characteristics, all of which serve to manage a secure network.

a. true b. false