Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Introduction to Networking, Internet Connection Requirements, Computer Basics, Network Interface Card, NIC and Modems, Internet Connections for Consumers, Testing Connectivity with Ping and many other topics of Computer Network can be find in my documents.
Typology: Slides
1 / 21
This page cannot be seen from the preview
Don't miss anything!
Semester 1 – Module 1
Module Objectives:
Understand the physical connection that has to take place for a computer to connect to the Internet. Recognize the components that comprise the computer. Install and troubleshoot network interface cards and/or modems. Use basic testing procedures to test the Internet connection. Demonstrate a basic understanding of the use of web browsers and plug-ins.
Internet is the largest data network on earth Consists of many large and small networks that are interconnected Individual computers are the sources and destinations of information through the Internet Connection to the Internet can be broken down into three parts: Physical connection – device such as NIC Logical connection – protocols such as TCP/IP Applications – software that interprets and display data
A NIC, or LAN adapter, provides network communication capabilities to and from a PC These considerations are important in the selection of a NIC: Protocols – Ethernet, Token Ring, or FDDI Types of media – Twisted-pair, coaxial, wireless, or fiber-optic Type of system bus – PCI or ISA
A NIC provides a network interface for each host Situations that require NIC installation include the following: Installation of a NIC on a PC that does not already have one Replacement of a malfunctioning or damaged NIC Upgrade from a 10-Mbps NIC to a 10/100/1000-Mbps NIC Change to a different type of NIC, such as wireless Installation of a secondary, or backup, NIC for network security reasons
A modem, or modulator-demodulator, has two main functions: provides the computer with connectivity to a telephone line converts data from a digital signal to an analog signal that is compatible with a standard phone line Docsity.com
TCP/IP is a set of protocols or rules that have been developed to allow computers to share resources across a network The operating system tools must be used to configure TCP/IP on a workstation
Ping is a basic program that verifies a particular IP address exists and can accept requests. Ping stands for Packet Internet or Inter-Network Groper. How can ping be used? ping 127.0.0.1 - loopback test. It verifies the operation of the TCP/IP stack and NIC transmit/receive function. ping host computer IP address - verifies the TCP/IP address configuration for the local host and connectivity to the host. ping default-gateway IP address - verifies whether the router that connects the local network to other networks can be reached. ping remote destination IP address - verifies connectivity to a remote host.
Computers work with and store data using electronic switches (binary or bits (b)) that are either ON (1b or +5v) or OFF (0b or 0v).
The 1s and 0s are used to represent the two possible states of an electronic component in a computer. Keyboarding uses ASCII Transfer uses raw bits
Currently, addresses assigned to computers on the Internet are 32-bit binary numbers. To make it easier to work with these addresses, the 32-bit binary number is broken into a series of decimal numbers.
