Materials that are considered ________ are not required to pay royalties since they are used for research, teaching, news reporting, and criticism

A graph is called a(n) ____ graph if it has no loops and no parallel edges.

A. simple B. undirected C. directed D. weighted

In the following description, explain when the term account is used as an application domain concept and when as a solution domain concept:

“Assume you are developing an online system for managing bank accounts for mobile customers. A major design issue is how to provide access to the accounts when the customer cannot establish an online connection. One proposal is that accounts are made available on the mobile computer, even if the server is not up. In this case, the accounts show the amounts from the last connected session.”