TCP-IP architecture model

1. Network interface(Data link) layer
2. Network layer
3. Transport layer
4. Application layer


Network interface layer
The lowest layer of the TCP/IP model. Its task is to provide access to the transmission physical medium and it differs according to the implementation of the medium.

Tips for Mom Entrepreneurs: How to Stay Connected to Your Network

As a working mom, you may already feel overwhelmed, juggling dual responsibilities of work and family. When it comes to networking – yet another task – you may feel that "the time I've spent at networking has never really paid off."

Router - Tracing Your Packets

Few people will really care about the path that your packet takes when sending a message, but if you're one of those high tech egg heads then this article may be of great interest to you. It can become very addictive so proceed with caution.

Cisco Certification: Making A Good Impression In Your Job Interview

Okay, you did it! You earned your Cisco Certified Network Associate certification.

Now what?

People who pass the CCNA exam fall into one of three categories. You may be just entering the IT field you may be working on the LAN side and want to move to the WAN side (that's where I was when I passed the CCNA), or you may already work on the WAN side of the network, and you want to move up the ladder.