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Test your basic knowledge |
Wireless Networking Vocab
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Omnidirectional
Radiation pattern
LOS (Line of Sight)
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
Access Point
2. Which techniques help to reduce overhead in 802.11n wireless transmission?
Frame aggregation - Channel bonding
WLAN
LEO (Low Earth Orbiting)
Established the credentials the wireless interface will use to communicate securely with the access point
3. The term used to describe the recently released standards for high thoughput - long-distance digital data exchange over wireless connections. WiMAX (IEEE 802.16) is one example of a wireless broadband technology.
Multipath signals
Wireless Broadband
2.4 GHz Band
Access Point
4. A consortium of companies - including Sony Ericsson - Intel - Nokia - Toshiba - and IBM - that formally banded together in 1998 to refine and standardize Bluetooth technology.
Multipath signals
Bluetooth Special Interest Group (SIG)
WLAN
Probe
5. The signals made of electromagnetic energy that travel through the atmosphere.
5 GHz
Wireless
MIMO (Multiple Input-Multiple Output)
Radiation Pattern
6. In the context of 802.11n wireless networking - the ability for access points to issue multiple signals to stations - thereby multiplying the signal's strength and increasing their range and data-carrying capacity. Because the signals follow multipat
Ad Hoc
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
Active Scanning
MIMO (Multiple Input-Multiple Output)
7. The equipment on a satellite that receives an uplinked signal from Earth - amplifies the signal - modifies its frequency - then retransmits it (in a downlink) to an antenna on Earth.
Bluetooth Special Interest Group (SIG)
Satellite Return
Transponder
LOS (Line of Sight)
8. Regulated radio frequency band - 1/3rd range of 802.11b or g - Usually found in corporate environments.
Transponder
5 GHz
Fading
Roaming
9. The geographical area in which signals issued from an antenna or wireless system can be consistently and accurately received.
Range
Satellite Return
canning
Infrastructure WLAN
10. A unique character string used to identify an access point on an 802.11 network.
Channel Bonding
Dial Return
Ad Hoc
SSID (Service Set Identifier)
11. A change in a wireless signal's strength as a result of some of the electromagnetic energy being scattered - reflected - or diffracted after being issued by the transmitter.
Hot Spot
DSSS (Direct-Sequence Spread Spectrum)
Probe
Fading
12. In the context of wireless - the phenomenon that occurs when an electromagnetic wave encounters an obstacle and bounces back toward its source. A wireless signal will bounce off objects whose dimensions are large compared to the signal's average wave
Reflection
A beacon frame
Channel Bonding
5 GHz Band
13. ISM Range - Radio frequency band that may experience home appliance interference - Unregulated radio frequency band.
Downlink
Fading
2.4 GHz
PAN (Personal Area Network)
14. In the context of wireless networking - an assessment of client requirements - facility characteristics - and coverage areas to determine an access point arrangement that will ensure reliable wireless connectivity within a given area.
Site Survey
Radiation pattern
5 GHz Band
Range
15. In the context of wireless networking - the process in which a station listens to several channels within a frequency range for a beacon issued by an access point.
Passive Scanning
GEO (Geosynchronous Orbit or Geostationary Orbit)
Association
Diffraction
16. On your Linux workstation - you open a terminal window and type at the command prompt iwconfig eth0 key 5c00951b22. What have you done?
Established the credentials the wireless interface will use to communicate securely with the access point
Frame aggregation - Channel bonding
5 GHz Band
Directional Antenna
17. The process a wireless station undergoes to find an access point.
Hot Spot
Association
canning
Multipath signals
18. When a wireless signal splits into secondary waves as it encounters an obstruction. The secondary waves continue to propagate in the direction in which they were split. (bending around an obstacle)
Diffraction
Narrowband
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
Roaming
19. An end node on a network; used most often in the context of wireless networks.
BSSID (Basic Service Set Identifier)
Bluetooth
Stations
Bluetooth Special Interest Group (SIG)
20. A type of WLAN in which stations communicate with an access point and not directly with each other.
Fixed Wireless
MEO (Medium Earth Orbiting)
Probe
Infrastructure WLAN
21. A small (usually home) network composed of personal communications devices.
Infrastructure WLAN
2.4 GHz
PAN (Personal Area Network)
Reassociation
22. Used by newer types of WLANs. A range of frequencies that comprises four frequency bands: 5.1 - 5.3 - 5.4 - and 5.8GHz. It consists of 24 unlicensed bands - each 20 MHz wide. This band is used by WLANs that follow the 802.11a and 802.11n standards.
Established the credentials the wireless interface will use to communicate securely with the access point
Site Survey
Wireless Router
5 GHz Band
23. A destination node must issue an acknowledgment for every packet that is received intact.
802.11 transmission requirement that contributes to its inefficiency
iwconfig
Wireless Router
Reassociation
24. Why are the 802.11b and 802.11g wireless transmission technologies more commonly used on business LANs than Bluetooth?
Association
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
802.11 transmission requirement that contributes to its inefficiency
Wireless
25. The range of radio frequencies from 2.4 to 2.4835 GHz. This band allows for 11 unlicensed channels - and is used by WLANs that follow the popular 802.11b and 802.11g standards.
ESS (Extended Service Set Identifier)
Fading
2.4 GHz Band
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
26. In ________ wireless - the receiver can be located anywhere within the transmitter's range. This allows the receiver to roam from one place to another while continuing to pick up its signal.
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
Wireless Broadband
Mobile Wireless
BSSID (Basic Service Set Identifier)
27. Because of reflection - diffraction - and scattering - wireless signals follow a number of different paths to their destination.
PAN (Personal Area Network)
Wireless Gateway
Multipath signals
MIMO (Multiple Input-Multiple Output)
28. In wireless networking - the process that describes a station moving between BSSs without losing connectivity.
Radiation pattern
Active Scanning
In the 802.11 standard - IEEE specifies what type of access method?
Roaming
29. An exchange in which a wireless station requests the exclusive right to communicate with an access point and the access point confirms that it has granted that request.
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
RTS/CTS (Request to Send/Clear to Send)
Access Point
5 GHz Band
30. In IEEE terminology - the identifier for a BSS (basic service set)
BSSID (Basic Service Set Identifier)
Hot Spot
Access Point
Channel Bonding
31. The use of multiple frequencies to transmit a signal. (because the signal is spread out over the wireless spectrum)
Downlink
Wireless Spectrum
Scattering
Spread Spectrum
32. In _____ - a transmitter concentrates the signal energy at a single frequency or in a very small range of frequencies.
Narrowband
Roaming
LOS (Line of Sight)
Association
33. A device used on wireless LANs that transmits and receives wireless signals to and from multiple nodes and retransmits them to the rest of the network segment. Access points can connect a group of nodes with a network or two networks with each other.
Access Point
Mobile Wireless
Dial Return
MIMO (Multiple Input-Multiple Output)
34. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.
Hot Spot
B. 2.4 GHz
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
Fixed Wireless
35. In the context of wireless networking - the process of a station establishing a connection (or associating) with a different access point.
Channel Bonding
Mobile Wireless
Reassociation
RTS/CTS (Request to Send/Clear to Send)
36. A ______ ______ issues wireless signals along a single direction. This type of antenna is used when the source needs to communicate with one destination - as in a point to point link.
Satellite Return
Wireless Router
Directional Antenna
canning
37. A network access method used on 802.11 wireless networks. In CSMA/CA - before a node begins to send data it checks the medium. If it detects no transmission activity - it waits a brief - random amount of time - and then sends its transmission. If the
Transponder
Association
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
Reflection
38. This is the diffusion - or the reflection in multiple different directions - of a signal. This occurs when a wireless signal encounters an object that has small dimensions compared to the signal's wavelength.
Wireless Spectrum
canning
Scattering
DSSS (Direct-Sequence Spread Spectrum)
39. A wireless networking standard that uses FHSS signaling in the 2.4GHz band to achieve a maximum throughput of either 723 Kbps or 2.1 Mbps - depending on the version. Bluetooth was designed for use primarily with small office or home networks in which
Roaming
Bluetooth
Wireless Gateway
MEO (Medium Earth Orbiting)
40. Another type of Spread-Spectrum signaling. In __________ - a signal's bits are distributed over an entire frequency band at once. Each bit is coded so that the receiver can reassemble the original signal upon receiving the bits.
DSSS (Direct-Sequence Spread Spectrum)
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
Range
Dial Return
41. Which type of satellites is used to provide satellite Internet access?
Wireless
2.4 GHz Band
Geosynchronous orbit
B. 2.4 GHz
42. The locations of the transmitter and receiver do not move. The transmitting antenna focuses its energy directly toward the receiving antenna. This results in a point to point link. (Advantage: receiver's location is predictable - energy need not be w
Wireless Broadband
Reflection
Radiation Pattern
Fixed Wireless
43. In the context of wireless networking - a frame issued by an access point to alert other nodes of its existence.
Downlink
Narrowband
Geosynchronous orbit
Beacon Frame
44. A type of satellite that orbits the Earth roughly 6000 to 12 -000 miles above its service - positioned between the equator and the poles. MEO satellites can cover a larger area of the Earth's surface than LEO satellites while using less power and cau
iwconfig
A beacon frame
MEO (Medium Earth Orbiting)
RTS/CTS (Request to Send/Clear to Send)
45. A group of access points and associated stations (or basic service sets) connected to the same LAN.
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
ESS (Extended Service Set Identifier)
SSID (Service Set Identifier)
Radiation pattern
46. A command-line utility for viewing and setting wireless interface parameters on Linux and UNIX workstations.
canning
iwconfig
GEO (Geosynchronous Orbit or Geostationary Orbit)
Active Scanning
47. A continuum of the electromagnetic waves used for data and voice communication. The _______ _______ (as defined by the FCC - which controls its use) spans frequencies between 9KHz and 300 GHz. each type of wireless service can be associated with one
Dial Return
LEO (Low Earth Orbiting)
In the 802.11 standard - IEEE specifies what type of access method?
Wireless Spectrum
48. This type of propagation uses the least amount of energy and results in the reception of the clearest possible signal.
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
LOS (Line of Sight)
MEO (Medium Earth Orbiting)
Site Survey
49. A type of satellite that orbits the Earth with an altitude between 100 and 900 miles - closer to the Earth's poles than the orbits of either GEO or MEO satellites. LEO satellites cover a smaller geographical range than GEO satellites and require less
LEO (Low Earth Orbiting)
Transponder
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
LOS (Line of Sight)
50. The term used to refer to a satellite that maintains a constant distance from a point on the equator at every point in its orbit. Geosynchronous orbit satellites are the type used to provide satellite Internet access.
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
GEO (Geosynchronous Orbit or Geostationary Orbit)
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
Bluetooth