A(n) _____ is a system of hardware and/or software that protects a computer or a network from intruders.

A. bridge
B. firewall
C. gateway
D. router
E. switch


Answer: B. firewall

Computer Science & Information Technology

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The term ________ refers to businesses that have physical store locations as well as a website for online purchases

Fill in the blank(s) with correct word

Computer Science & Information Technology

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Indicate whether the statement is true or false

Computer Science & Information Technology

Because more sophisticated queries require more advanced manipulation of data, you may need to create a(n) ________

A) SQL query B) crosstab query C) union query D) subquery

Computer Science & Information Technology

Answer the following statements true (T) or false (F)

1. Choices made during the implementation process have no effect on execution time of your code. 2. According to the text, when adding a first entry to an array, always place it in the first element, the element whose index is zero. 3. The method toVector must “know” where the add has placed the entries. 4. The client of a class can access the class’s private members directly by use of a password. 5. The entries in a bag have no particular order.

Computer Science & Information Technology