A(n) ________ task must be completed before the next task can start

We wish to keep track of the last ten flights that leave a gate of an airport. We make a FlightHistory class with an array that can store ten flight numbers. Since many more than ten flights will eventually leave the gate, to keep track of the last ten flights, we should use a:

A. overwriting array B. looping array C. Johnson array D. circular array

A(n) ________ network allows visitors to access the Internet through a LAN but doesn't allow them to access other resources and data on the network.

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