Introduction to Networks and Security in ICS 460
Internet
A network of interconnected networks.
Protocol
Rules governing communication between network entities.
Network Edge
Hosts and access networks at the Internet's periphery.
Packet Switching
Data transmission method using packets.
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Introduction to Networks and Security in
ICS 460
Internet
A network of interconnected networks.
Protocol
Rules governing communication between network entities.
Network Edge
Hosts and access networks at the Internet's periphery.
Packet Switching
Data transmission method using packets.
Circuit Switching
Dedicated communication path for the duration of a call.
Bandwidth
Transmission rate measured in bits per second.
Loss
Data packets that fail to reach their destination.
Delay
Time taken for data to travel across the network.
Throughput
Rate of successful message delivery over a communication channel.
Hosts
End systems running network applications.
Access Network
Network connecting end systems to the Internet.
Content Provider Network
Network delivering content to users.
Data Center Network
Network hosting servers for data storage and processing.
Enterprise Network
Network managed by an organization for internal use.
, Transmission Rate
Speed of data transfer, typically in Mbps.
WiFi
Wireless networking technology for local area connections.
Ethernet
Wired networking technology for local area networks.
4G
Fourth generation mobile network technology.
DSL
Digital Subscriber Line for internet access via phone lines.
Hybrid Fiber Coax (HFC)
Network combining fiber and coaxial cable for broadband.
RFC
Request for Comments, document series for Internet standards.
IETF
Internet Engineering Task Force, develops Internet standards.
Access Point
Device allowing wireless devices to connect to a network.
Central Office
Facility housing telecommunications equipment for DSL.
Modem
Device converting digital data to analog for transmission.
Cable Headend
Facility where cable signals are processed and distributed.
Frequency Division Multiplexing (FDM)
Technique for transmitting multiple signals over different frequencies.
Transmission Media
Physical pathways for data transmission, e.g., fiber, copper.
Mobile Network
Wireless network providing connectivity to mobile devices.
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