Unit 9 wireless networking

Question 1

joins two or more devices through
unbound radio or light wave

Answer 1

Wireless network

Question 2

device that creates wireless local area network
usually in office or large building

Answer 2

Access point

Question 3

The most important element in wireless network
 Connects to wired router or switch via an Ethernet cable, and
transmits Wi-Fi signal to designated area

Answer 3

Access Point

Question 4

: device used in LANs and WANs that performs
specific function

Answer 4

Network node

Question 5

Each node needs MAC address for each

Answer 5

network interface card (NIC)

Question 6

collection of wireless networking devices with
same parameters

Answer 6

Service set

Question 7

Identifier (name) that tells you
which service set (or network) to join

Answer 7

Service set identifier (SSID):

Question 8

Covers wireless networks over wide area
 Achieved by wirelessly connecting coverage cells to provide services
to expanded geographical location
 Typically used to cater to smartphone market through cellular
service providers
 Coverage of large service areas such as cities, regions or even
countries

Answer 8

Wireless Wide Area Network (WWAN)

Question 9

Commonly deployed WWAN technologies include

Answer 9

GSM/GPRS/EDGE,
CDMA2000, UMTS/HSDPA and CDMA EV-DO

Question 10

 Different from normal Wi-Fi connection; individuals can
enjoy wireless services through any

Answer 10

hotspot

Question 11

Sometimes known as LAWN (Local Area Wireless Network)
 Wireless computer network that links two or more devices using
wireless distribution method within a limited area such as home,
school, computer laboratory, or office building

Answer 11

Wireless Local Area Network (WLAN)

Question 12

Can be constructed through any kind of wireless network protocol,
but most common connection is through Wi-Fi for distances up to
100 meters

Answer 12

Wireless Local Area Network (WLAN)

Question 13

Caters to devices such as laptops, mobile phones, tablets
computers, gaming console, internet audio system, and internetpowered home devices and appliances

Answer 13

Wireless Local Area Network (WLAN)

Question 14

 Need to rely on repeaters or signal boosters to cover vast
geographical location

Answer 14

Wireless Local Area Network (WLAN)

Question 15

Client devices use this name to identify and join wireless network

Answer 15

Single Access Point WLANs

Question 16

Name of Wi-Fi network you look to join your device to

Answer 16

Single Access Point WLANs

Question 17

Identify access points and their clients. Packets bound for devices within
WLAN need to go to correct destination.

Answer 17

Basic Service Set Identifier (BSSID)

Question 18

network that forwards traffic from node to node, has no
access point; network generates 48-bit string of numbers that looks and
functions like MAC address and that BSSID goes in every packet

Answer 18

Ad-hoc network

Question 19

Consists of all BSSs in network

Answer 19

Extended Service Set Identifier (ESSID)

Question 20

Access points in Extended Service Set (ESS) connected by

Answer 20

centralized
distribution system

Question 21

Provides wireless connection to devices that surround an
individual’s personal space typically 10 meters

Answer 21

Wireless Personal Area Network (WPAN)

Question 22

Examples of Wireless Personal Area Network (WPAN)

Answer 22

Infrared and Bluetooth

Question 23

Consumes less power, provides short-range communication, is
low cost, and provides connected communication of various
devices in people’s personal space

Answer 23

Wireless Personal Area Network (WPAN)

Question 24

 Wireless network intended to cover ranges around 31 miles or 50
kilometers

Answer 24

Wireless Metropolitan Area Network (WMAN)

Question 25

 Allows multiple locations or buildings to stay connected within any metropolitan area

Answer 25

Wireless Metropolitan Area Network (WMAN)

Question 26

Relies on strong radio waves or infrared light versus cables to transmit data  Often used as backup for wired networks  Main goal to provide wireless connection between two independent and fully-functional LAN nodes  Downside is that it is easily attacked because it covers wide range of geographical locations

Answer 26

Wireless Metropolitan Area Network (WMAN)

Question 27

r transmits Wi-Fi signal but also contains ports connected to any digital subscriber line (DSL) modem or cable through Ethernet cables

Answer 27

Hybrid Network

Question 28

means something improvised or makeshift device; impromptu, on-demand network that works from device to device

Answer 28

Ad hoc

Question 29

Does not rely on wireless router or central Access Point to transmit data from one point to another

Answer 29

Wireless Ad Hoc Network

Question 30

 Can sustain itself without any existing infrastructure; decentralized and regarded as peer-to-peer network

Answer 30

Wireless Ad Hoc Network

Question 31

Wireless Advantages

Answer 31

 Increased mobility and collaboration  Roam without losing connection  Connect hard-to-reach areas

Question 32

Wireless Disadvantages

Answer 32

speed reliability security reduced management control

Question 33

is technology based on IEEE 802.11 suite of standards that uses radio frequencies (RF) to extend wired Ethernet-based LANs to Wi-Fi enabled devices

Answer 33

Wi-Fi

Question 34

is a network that allows devices to connect and communicate wirelessly

Answer 34

WLAN, or wireless LAN

Question 35

devices on a WLAN communicate via

Answer 35

Wi-Fi

Question 36

uses wireless communication medium instead of wired connection

Answer 36

Wireless Personal Area Networks

Question 37

Range depends on wireless router's capabilities, access point or the device itself, but usually restricted to house or small office

Answer 37

Wireless Personal Area Networks

Question 38

IEEE 802.15.1

Answer 38

Bluetooth

Question 39

Global 2.4 GHz PAN for short-range wireless communication

Answer 39

IEEE 802.15.1 Bluetooth

Question 40

Standard for short-range wireless interconnection of mobile phones, computers, and other electronic devices

Answer 40

IEEE 802.15.1 Bluetooth

Question 41

 2.4 GHz mesh LAN protocol  Developed as IEEE 802.15.4-based specification for suite of highlevel communication protocols used to create PANs with small, lowpower digital radios

Answer 41

IEEE 802.15.4 ZigBee

Question 42

Transmit data over long distances by passing through mesh network of intermediate devices to reach more distant ones

Answer 42

IEEE 802.15.4 ZigBee

Question 43

IEEE 802.15.4 ZigBee

Answer 43

* IEEE 802.15.4 ZigBee

Question 44

Form of visual light communication that uses light waves from LEDs for high-speed wireless communication.

Answer 44

IEEE 802.15.7 Li-Fi

Question 45

 Exchange data quickly and securely at a much lower power level compared to Wi-Fi

Answer 45

IEEE 802.15.7 Li-Fi

Question 46

Fewer interference issues than RF technology, making it ideal for dense environments where Wi-Fi may fall short

Answer 46

IEEE 802.15.7 Li-Fi

Question 47

 Developed separately from Wi-Fi  Designed for long-range networking (spanning miles or kilometers) as opposed to local area wireless networking

Answer 47

IEEE 802.16 WiMax

Question 48

Carrier Sense Multiple Access/Collision Avoidance  Network contention protocol that listens to network in order to avoid collisions,  Unlike CSMA/CD that deals with network transmissions once collisions have been detected.  Internationally standardized in IEEE 802.11

Answer 48

CSMA/CA

Question 49

Have all software required to manage WLAN processes with no need for additional controllers or switches  Original type of access point and ranged from one to ten access points across network

Answer 49

Autonomous Access Point

Question 50

Combination of multiple devices; access point, regular Ethernet switch, router and sometimes modem

Answer 50

Multifunction Access Point

Question 51

 Doesn’t make any forwarding decision oUpon receiving frame from connected device, instead of forwarding to destination device, forwards frame to WLC oWLC, based on the security configuration, makes decision whether received frame should be forwarded or discarded oIf forwarded, sends frame to LWAP, to which destination device is connected. LWAP sends frame to destination device

Answer 51

Lightweight Access Point

Question 52

Controlled Access Point  Works as client of Wireless LAN Controller (WLC)

Answer 52

Lightweight Access Point