Chapter 7 Flashcards
Local Area Networks
Connects computers in close proximity, such as an office building, school, or home.
Wide Area Network (WAN)
Spans a large geographic area such as a state, province, or country.
Metropolitan Area Network (MAN)
A large computer network usually spanning a city.
National Service Providers (NSPs)
Private companies that own and maintain the worldwide backbone that supports the internet.
Network Access Point (NAPs)
Traffic exchange points in the routing hierarchy of the internet that connects NSPs
Regional Service Providers (RSPs)
Offer internet service by connecting to NSPs, but they also can connect directly to each other.
Bandwidth
The maximum amount of data that can pass from one point to another in a unit of time.
Bit Rate
Number of bits transferred or received per unit of time.
Modem
Device that enables a computer to transmit and receive data.
Broadband
A high speed internet connection that is always connected.
Two Types:
1)Digital Subscriber Line (DSL) over standard telephone lines.
2)Internet Cable Connection-uses cable co’s modem.
T1 Line
Rate is ~ 1.5 Megabits per second
- Highly Reliable connection
- very expensive
- 24 separate connections w/ 1 line.
Protocol
A standard that specifies the format of data as well as the rules to be followed during transmission.
Transmission Control Protocol/Internet Protocol (TCP/IP)
Provides the technical foundation for the public internet as well as for large numbers of private networks.
Domain Name System
Converts IP addresses into domains.
-ICAN - under US control until 10/1/2016 controls domain names.
Network Convergence
The efficient coexistence of telephone, video, and data communication within a single network, offering convenience and flexibility no possible with separate infrastructures.
Unified Communication (UC)
THe integration of communication channels into a single service
Peer-to-Peer (P2P)
A computer network that relies on the computing power and bandwidth of the participants in the network not a centralized server.
THe primary resource for sharing include:
1)Intranet
2)
3)
Personal Area Network (PAN)
Provide communication over a short distance intended for use with devices owned/ operated by a single user.
Bluetooth
Wireless PAN technology that transmits signals short distances between
Wireless LAN (WLAN)
A local area network using radio signals to transmit/receive data over distances of a few hundred feet.
Wireless Fidelity (Wi-Fi)
Portable devices connect wirelessly to a local area network, using access points that send and receive data via radio waves.
Access Point
The computer or network device that serves as an interface between devices and the network.
Wireless Access Point
Enables devices to connect to a wireless
Wireless MAN (WMAN)
A metropolitan area network that uses radio signals to transmit and receive data.
