To search for a range of values, you would use the ________ operator

Which of the following steps should be taken by companies to protect against cyber terrorist and computer espionage attacks?

a. Ensure systems are as secured as possible. b. Conduct background checks on all network administrators and security professionals. c. Report any intrusions to law enforcement. d. All the above.

An attribute declared as a(n) ____________________ token must have a value equal to the value of an ID attribute located somewhere in the same document.

Fill in the blank(s) with the appropriate word(s).