Introduction to Computer Networking

Technologies are evolving so fast. Networking world has changed so much in last 25 years. These days, networks with speed of 10 Gbps (Giga bits per second) are becoming common. The speed of 10 Gbps was not even imaginable 25 years back.

These days, even the smallest organization has a connection to the Internet. Almost all companies have websites and have their presence on the World Wide Web. Companies now operate on networks and do get customers via internet. The beautiful world of computer networking is ever evolving.

Network engineers have most exciting and thrilling job. They are always updated in technology and they get the first chance to operate and work in latest technologies.

The basic nature of duty of a network engineer is to Design, Install, Administer and to Trouble-shoot computer networks. Therefore, a network engineer should have thorough knowledge about network infrastructure devices. A network engineer should have enough knowledge in how to Design, Install, Administer and to Trouble-shoot these devices.

A Network Engineer has a a wide range of responsibilities. Responsibilities of a Network Engineer may include

• Managing company's computers

• Providing technical support to users

• Designing company's network

• Designing, Building and Maintaining and connections between offices (physical sites)

• Provisioning Internet and providing user access to internet

• Configuring user privileges access to internet

• Configuring user privileges in network

• Installing, configuring, managing and hardening Operating Systems

• Configuring Network Infrastructure Devices like Switches, Routers and Firewalls

• Hardening Network Infrastructure Devices like Switches, Routers and Firewalls

• Providing network security