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Group 5 - Coggle Diagram
Group 5
Describe basic principles of the physical layer standards.
Electronic Industries Alliance (EIA)
standards related to electrical wiring,connectors, and network racks.
Telecommunications Industry Association (TIA)
standards for radio equipment, cellular towers,Voice over IP (VoIP) devices, and satellite communications.
International Telecommunications UnionTelecommunication Standardization Sector (ITU-T)
standards for video compression, Internet Protocol Television (IPTV), and broadband communications.
Institute of Electrical and Electronics Engineers (IEEE)
-dedicated to advancing technological innovation
-creating standards in a wide area of
industries including networking.
Internet Assigned Numbers Authority
(IANA)
manages IP address allocation,
domain name management, and protocol
identifiers for ICANN.
Internet Corporation for Assigned Names
and Numbers (ICANN)
coordinates IP address allocation and management of domain names.
Internet Society (ISOC) –
promotes open
development and evolution of Internet
use globally.
The International Organization for Standardization (ISO）
Identifying, understanding and managing interrelated processes as a system contributes to the organisation's effectiveness and efficiency in achieving its objectives.
The American National Standards Institute (ANSI)
Administers and coordinates the U.S. voluntary standards and conformity assessment system.
Identify device connectivity options.
①Repeater
☞to extend a network inexpensively
☞One input and output port
☞extend a network inexpensively
② Hub
☞is a repeater with more than one output port
i.) accepts signals from a transmitting node
ii.)repeats those signals to all other connected nodes in a broadcast fashion.
③ Bridges
i.)connect two network segments by analysing incoming frames
ii.) making decisions about where to direct them based on each frame’s MAC address
④ Switches
☞are connectivity devices that subdivide a
network into smaller logical pieces, or segments.
⑤ Router
☞a multiport connectivity device that directs
data between nodes on a network.
☞can integrate LANs and WANs running at different transmission speeds and using a variety of protocols.
⑥ Wireless Access Point (AP)
☞allows a Wi-Fi compliant device to connect to a wired network.
☞is the physical location where Wi-Fi access to a WLAN is available.
⑦ Modem
☞Convert either digital signal to analog signal (modulation) and analog signal to digital signal (demodulation).
☞Stand for Modulation and Demodulation.
⑧ Network Interface Card (NIC)
On-board NIC
☞via an expansion slot or peripheral bus
Wireless NIC
☞contain antennas to send and receive signals wirelessly.
☞a hardware component, typically a circuit board or chip, which is installed on a computer so that it can connect to a network.
QUESTION 3
Describe fiber optic cabling and its main advantages over other media.
Describe fiber optic cabling
A fiber optic cable, also known as an optical-fiber cable is a networkcable.
That contains strands of glass fiber inside an insulated casing. That are design for
That are design for long-distance ,high-performance data networking and telecommunications.
The advantages over other media
1) Can provide higher bandwidth
2) Transmit data over longer distances
3) Support much of the world’s internet, cable television, and telephone systems
4) has the highest immunity level in electrical hazards, EMI and RFI.