CCNA :) Be a Good Network Administrator

 Calculating subnets with VLSM 1.1.4 VLSM helps to manage IP addresses. This page will explain how to use VLSM to set subnet masks that fit ...

When to Use VLSM 1.1.3  It is important to design an address scheme that allows for growth and does not waste addresses. This page examines ...

A Waste of VLSM 1.1.2  This page will explain how certain address schemes can waste address space. In the past, the first and last subnet ...

  VLSM 1.1.1   What is VLSM and why is it used? As IP subnets have grown, administrators have looked for ways to use their address space mor...

Semester 3  Module 1: Introduction to Classless Routing - Overview Network administrators must anticipate and manage the physical growth of ...

2.3  WAN Design  2.3.1 WAN Communication WANS are considered to be a set of data links connecting routers on LANs. User end st...

2.2.8 Cable Modem Coaxial cable is widely used in urban areas to distribute television signals. Network access is available from some cabl...