Topic #5: Communicating Over the Network Flashcards
Three elements of communication
- Sender
- Receiver
- Channel
The Communication Process
Message Source > Encoder > Transmitter > Transmission Medium > Receiver > Decoder > Message Destination
It is the process in which all messages are broken into smaller pieces that can easily be transported together across a medium
Segmentation
Benefits of Segmentation
- Multuplexing
- Increased Efficiency
It occurs when the segments of two or more messages can shuffle into each other and share the medium
Multiplexing
Network Components
- Devices and Media
- Services and Processes
- Software
- Hardware
These network components are the physical elements or hardware of the network
Devices and Media
These network components refer to the communication programs called software that run on the networked devices.
Services and Processes
These network components refer to the one that provides information in response to a request
Network Service
These provide the functionality that directs and moves the messages through the network
Processes
These network components refer to the network applications
Software
These network components refer to the physical network
Hardware
These devices connect individual hosts to the network and can connect multiple individual networks to form an internetwork
Intermediary Devices
Three Devices and Media
- End Devices
- Intermediary Devices
- Network Media
This intermediary Device connects end users to their network
Network access devices
These intermediary devices connect one network to one or more other networks
Internetwork Devices
These intermediary devices route services
Communication Servers
These intermediary devices connect users to servers and networks through telephone or cable
Modems
These intermediary devices secure the network with devices that analyze traffic exiting and entering networks
Security Devices
3 main types of Networking Media
- Copper
- Fiber-Optic Cable
- Wireless
This kind of networking media encodes the data through electrical pulses
Copper
This networking media encodes the data through light pulses
Fiber-Optic Cable
This networking media encodes the data through electromagnetic waves
Wireless