Flashcards in WiFi/Xfi (DS 10/24/18)(IS 10/2019) Deck (39)
A network where devices are connected to each other and shared resources using radio signals that conform to a common standard.
The most common wireless standard in use
Who governs the WiFi standards
(IEEE) the Institute of Electrical and Electronics Engineers
Links two or more devices within a single building or location using a wireless distribution method, providing a connection through an access point to the Internet.
Wireless Local Area Networks (LAN)
Connects different LANs together. They interconnect buildings and cities together. The cover large areas such as towns and cities.
Wireless Wide Area Networks (WAN)
These replace wires and cables of wired networks
Radio transmitters and receivers
The commonly used different WiFi modes.
WiFi frequencies or bands
2.4 GHz, 5 GHz
What is the theoretical maximum throughput for 802.11a and on what frequency
54 Mbps on 5GHz
What is the theoretical maximum throughput for 802.11b and on what frequency
11 Mbps on 2.4 GHz
What is the theoretical maximum throughput for 802.11g and on what frequency
54 Mbps on 2.4 GHz
What is the theoretical maximum throughput for 802.11n and on what frequency
54 Mbps/600 Mbps on 5 GHz
What is the theoretical maximum throughput for 802.11ac and on what frequency
1300 Mbps on 5 GHz
Radio transmissions over this WiFi mode allows communication at speeds over one gigabit per second
What Technologies are used in WOH
MoCa, Ethernet, WiFi, Homeplug
The two types of Dual Band Networks
What WiFi Physical Barriers Interference level is Medium
Water Marble Concrete
What WiFi Physical Barriers Interference level is High
This default Encryption setting provides compatibility with most clients choosing the highest security mode for each client based on its capabilities
Wireless Camera, Alarm Systems, Digital Baby Monitors, Wireless audio or audio/video devices, Radar, Perimeter Sensors
Typical RF interference sources for 5 GHz band
HomePlug Certified adapters are capable of what bandwidth
200Mbps, 500Mbps and now over 1Gbps.
The app allows a customer to draw a rough floor plan of their home and ping from the app in different areas of the home to generate a heat map of the home.
Enables the technician to perform a quick speedtest as well as exploring WiFi sweet spots throughout the home
What is the ideal placement position for a wireless gateway
Central Location Elevated position An open area (avoid closets, filing cabinets, basements, and other tight spaces which weaken the WiFi signals)
2.4 GHz and 5 GHz networks used at same time
Choose which frequency band, you can only use 1 at a time
When a wireless Gateway determines which band is most optimal for a Customer's WiFi connection based on signal strength and WFi Congestion thresholds.
What is an ISP
internet service provider
A device that connects routers or computers to the internet through a cable