... the network or subnetwork. A subnet mask is used to extract network and subnetwork information from the IP address. Also called an Internet address. 2) Command used to establish the logical network ... Questions,” from the Cisco Networking Academy Program: Engineering Journal and Workbook, Volume I , Second Edition. 1. What is the Address Resolution Protocol (ARP)? a. Network protocol used ... (dotted-decimal format). Each address consists of a network number, an optional subnetwork number, and a host number. The network and subnetwork numbers together are used for routing; whereas,...