This Type of Software Protects Against Unsolicited E-Mail, Filtering Out

question 37

Multiple Choice

This type of software protects against unsolicited e-mail, filtering out those that have certain characteristics.

• A)antivirus
• B)spam filter
• C)firewall
• D)proxy service

---

Definitions:

Sac

A fluid-filled structure in the body which can enclose or secrete substances, as in cysts or secretory cells.

Hemoptysis

The expectoration (coughing up) of blood or bloody sputum from the lungs or airways.

Spitting

Ejecting saliva forcibly from one's mouth, sometimes as a response to an irritant or infection.

Basophil

A type of white blood cell involved in inflammatory reactions and allergic responses by releasing histamine and other mediators.