The filtering component of a content filter is like a set of firewall rules for Web sites, and is common in residential content filters. _________________________

MC The__________ element type declaration defines an attribute.

a) ATTRIBUTE. b) ATTLIST. c) ATTR. d) None of the above.

Suppose an ArrayList list contains {"red", "red", "green"}. What is the list after the following code?

``` String element = "red"; for (int i = 0; i < list.size(); i++) if (list.get(i).equals(element)) list.remove(element); ``` a. {"red", "red", "green"} b. {"red", "green"} c. {"green"} d. {}