Why do we have to retest subclasses that are instantiated from an existing class, if the existing class has already been thoroughly tested? Can we use the test-case design for the existing class?

Match each vocabulary word to its definition.1. desktoppicture used to represent acomputer application2. domainnetwork protectionsoftware code that can be viewed,3. iconmodified, and redistributed for freethe background screen on acomputer monitor4. url5. blogan online journalthe part of an internet address that6. firewallrefers to a group of computers on anetworkonline database of web pages7. intranetnetwork for use by an individual8. open address of a web page or9. wikiresource

This graph compares the total cost of attending educational institutions in texas. the graph demonstrates that the cost at private and public technical schools greatly varies.

The head restraint should be adjusted so that it reaches a. the top of your ears b. the base of your skull c. the top of the head