Study guides, Class notes & Summaries

The data link layer or layer 2 is the second layer of the seven-layer OSI model of computer networking. This layer is the protocol layer that transfers data between adjacent network nodes in a wide area network (WAN) or between nodes on the same local area network (LAN) segment. How. How much. header.

What is a mac address. how mac address is created. size of mac address. predicted life of mac address. types of mac address. position in header. layer two addressing.

INTRODUCTION TO PHP (history included)

arp stands for address resolution protocol, How it is used to resolve a logical address into physical address, its header

The basics of ip addressing, classes and its use , private and public class range and much more

in this slide you will lean about subnetting how do we subnet and create several networks

variable length subnet masking where we subnet a given ip according to requirement in order to reduce ip wastage, you will learn the subnetting

supernetting that allows reduce the routing table in a router and allows to represent several ip addresses with only one ip adress in RIB the exact process of supernet

Internet control message protocol, what it is how it works what are its uses the famous ping commands and the meaning of different replies destination unreachable code numbers etc