www.bbcnoun.com.ng Which of the underlisted are the TWO (2) special types of Packet Switched Systems? Message Switching and Cell switching The following are goals of implementing security in Electronic business EXCEPT? Privacy Which of the following are the two popular approaches to packet switching? Virtual Circuit Approach and Datagram Approach Which of the following statement is TRUE about Modems? These are small devices that connect networks over normal telephone lines Which of the following suites the definition of Multiplexer? These are devices used to enable the transmission of multiple signals across one transmission media.