A good way to keep hackers out of a computer is to install a(n) ________

Two good ways to test the results of a calculated field is to use a calculator or Excel

Indicate whether the statement is true or false

________ uses a comma to separate one column from the next, enabling the receiving software to distinguish one set of field values from the next

A) Excel tables B) CSV text files C) Fixed-length text files D) Linked files