Chapter 3: Data Communication and the Internet Flashcards
consist of 2 or more computer connected to gather, and can communicate and share resources.
Network
2 CLASSIFICATIONS OF NETWORK
- Based on Transmission Media
- Based on Network Size
2 CLASSIFICATIONS OF NETWORK BASED ON TRANSMISSION MEDIA
- Wired
- Wireless
TWO MAIN CATEGORIES OF TRANSMISSION MEDIA
- Guided
- Unguided
Transmission media like wires and cables
Guided
Transmission media that are wireless, like radio and microwave
Unguided
3 TYPES OF CABLES (WIRED TRANSMISSION MEDIA)
- Twisted-Pair Cables
- Coaxial Cables
- Fiber Optic Cables
2 TYPES OF TWISTED PAIR CABLES
- Unshielded-Twisted-Pair (UTP)
- Shielded-Twisted-Pair (UTP)
Cables that typically are wrapped inside a plastic cover.
Unshielded-Twisted-Pair (UTP)
Cable wire which has a metal foil or braided metal mesh cover that encases each pair of insulated wires.
Shielded Twisted-Pair (STP)
wires that carry signal of higher frequency (100 – 500 MHz).
Coaxial Cables
- it has a metallic wrapping that served both as a shield against noise and as a second conductor.
Coaxial Cables
is a technologically advances as compares to Twisted Pair and Coaxial Cable.
Fiber Optic Cables
Cable that transmits pulsating beams of light.
Fiber Optic Cables
4 TYPES OF WIRELESS TRANSMISSION MEDIA
- Terrestrial Microwave
- Communication Satellites
- Cellular and Personal Communication Service (PCS) System
- Bluetooth
use earth base transmitter and receiver.
Terrestrial Microwave
these are earth orbiting system that uses microwave radio as their communication medium.
Communication Satellites
uses several radio communication technologies.
Cellular and Personal Communication Service (PCS) System
GENERATION OF CELLULAR AND PCS SYSTEM
1G – Voice Only (2.4Kbps)
2G – SMS and MMS (50kbps)
3G – More Data, Video Calling, and Mobile Internet (2Mbps)
4G – The current Standard (100Mbps)
4G LTE – Long Term Evolution (300Mbps)
5G – Up to 20GBps per second.
a short-range wireless technology. Is an open wireless protocol for data exchange over short distance.
Bluetooth
2 NETWORK SIZE
- Local Area Network (LAN)
- Wide Area Network (WAN)
is a small and short distance network.
Local Area Network (LAN)
a network that uses long-range telecommunication links to connect 2 or more LAN / computer housed in different placed apart.
Wide Area Network (WAN)
refers the physical connection of wires that connect the nodes of the network.
Network Topology
4 TYPES OF NETWORKS TOPLOGY
- Linear Bus Topology
- Star Topology
- Ring Topology
- Hybrid Topology
is a world-wide collection of computer networks.
Internet
is one of the primary uses of the internet. It allows one user to sent a text-based message to another.
Electronic Mail
is a method for transferring files from one computer on the internet to another.
File Transfer Protocol
takes access a step further, it provides a hypertext interface.
World Wide Web Servers
is the foundation of the WWW. All documents, or pages, on the Web are linked together in hypertext architecture.
Hypertext Markup Language (HTML)
is a unique identifier of a webpage.
Uniform Resource Locator (URL)
is the standard data transmission protocol for the internet.
Transmission Control Protocol TCP/IP
is a system used to connect various computer within the internet.
Internet Protocol (IP)
is an identification label that defined a real of administrative autonomy, authority, or control in the internet.
Domain Names
- Are host names that identify the IP resources such as websites.
Domain Names
