VLSM, ARP, and Multicasting

Skillsoft issued completion badges are earned based on viewing the percentage required or receiving a passing score when assessment is required. Subnetting is the practice of dividing a given block of addresses into sub-units. This is done to meet organizational, security, and performance needs. In this course, you'll learn the differences between fixed-length subnet masks and variable-length subnet masks. You'll explore how subnet values are calculated and how to use VLSM to subnet a given block address. Finally, you'll learn how VLSM relates to Classless Inter-Domain routing. Address Resolution Protocol is a fundamental protocol that maps an IP address to a target MAC address. In this course, you'll also learn the purpose of address mapping, the characteristics of the ARP cache, and ARP commands. In addition, you'll learn about each of the fields in an ARP message and other ARP capabilities. While the majority of network communications gets done using a one-to-one transmission, some forms of communication are better served using a one-to-man transmission, like a television broadcast. The Internet Protocol supports this one-to-many type of communication with the Internet Group Management Protocol. You'll learn about the uses of multicasting and its main characteristics. You'll also explore the role of IGMP in multicasting and how multicast routing works. This course was originally created by Global Knowledge (GK).