WiFi/Xfi (DS 10/24/18)(IS 10/2019) Flashcards Preview

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Flashcards in WiFi/Xfi (DS 10/24/18)(IS 10/2019) Deck (39)
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1

A network where devices are connected to each other and shared resources using radio signals that conform to a common standard.

Wireless Networks

2

The most common wireless standard in use

802.11

3

Who governs the WiFi standards

(IEEE) the Institute of Electrical and Electronics Engineers

4

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)

5

Connects different LANs together. They interconnect buildings and cities together. The cover large areas such as towns and cities.

Wireless Wide Area Networks (WAN)

6

These replace wires and cables of wired networks

Radio transmitters and receivers

7

The commonly used different WiFi modes.

802.11a
802.11b
802.11g
802.11n
802.11ac

8

WiFi frequencies or bands

2.4 GHz, 5 GHz

9

What is the theoretical maximum throughput for 802.11a and on what frequency

54 Mbps on 5GHz

10

What is the theoretical maximum throughput for 802.11b and on what frequency

11 Mbps on 2.4 GHz

11

What is the theoretical maximum throughput for 802.11g and on what frequency

54 Mbps on 2.4 GHz

12

What is the theoretical maximum throughput for 802.11n and on what frequency

54 Mbps/600 Mbps on 5 GHz

13

What is the theoretical maximum throughput for 802.11ac and on what frequency

1300 Mbps on 5 GHz

14

Radio transmissions over this WiFi mode allows communication at speeds over one gigabit per second

802.11ac

15

What Technologies are used in WOH

MoCa, Ethernet, WiFi, Homeplug

16

The two types of Dual Band Networks

Simultaneous/Concurrent, Selectable/Non-Concurrent

17

What WiFi Physical Barriers Interference level is Medium

Water Marble Concrete

18

What WiFi Physical Barriers Interference level is High

Metal Mirror

19

This default Encryption setting provides compatibility with most clients choosing the highest security mode for each client based on its capabilities

WPA/WPA2-PSK (TKIP/AES)

20

Wireless Camera, Alarm Systems, Digital Baby Monitors, Wireless audio or audio/video devices, Radar, Perimeter Sensors

Typical RF interference sources for 5 GHz band

21

HomePlug Certified adapters are capable of what bandwidth

200Mbps, 500Mbps and now over 1Gbps.

22

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.

Telstra WiFi-Maximiser

23

Enables the technician to perform a quick speedtest as well as exploring WiFi sweet spots throughout the home

CloudCheck

24

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)

25

Simultaneous/Concurrent

2.4 GHz and 5 GHz networks used at same time

26

Selective/Non-Concurrent

Choose which frequency band, you can only use 1 at a time

27

When a wireless Gateway determines which band is most optimal for a Customer's WiFi connection based on signal strength and WFi Congestion thresholds.

Band Steering

28

What is an ISP

internet service provider

29

A device that connects routers or computers to the internet through a cable

Modem

30

A device that functions as both a modem and a router

Wireless Gateway