When an arithmetic expression contains two or more different operators, such as * and +, the order in which the operations is done is determined by

Using ____, a firewall reviews the header information for incoming and outgoing Internet packets to verify that the source address, destination address, and protocol are all correct.

A. snooping B. packet filtering C. a proxy server D. anti-virus software

To access a location in memory when using segmented memory management, the address is composed of two entries: ____.

A. the segment number and the line number B. the segment number and the displacement C. the line number and the displacement D. the segment number, the line number, and the displacement