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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. 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.
Omnidirectional Antenna
Beacon Frame
B. 2.4 GHz
Fading
2. If your wireless stations are configured to perform passive scanning - what do they need from an access point to initiate association?
A beacon frame
Passive Scanning
Downlink
Wireless Gateway
3. A type of satellite Internet access service in which a subscriber sends and receives data to and from the Internet over the satellite link. This is a symmetrical technology - in which both upstream and downstream throughputs are advertised to reach 4
Satellite Return
Narrowband
Dial Return
RTS/CTS (Request to Send/Clear to Send)
4. 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.
Directional Antenna
5 GHz Band
Association
MEO (Medium Earth Orbiting)
5. 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.
Fixed Wireless
Wireless Broadband
B. 2.4 GHz
Fading
6. Regulated radio frequency band - 1/3rd range of 802.11b or g - Usually found in corporate environments.
Multipath signals
5 GHz
Channel Bonding
Spread Spectrum
7. 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
B. 2.4 GHz
Wireless Router
Stations
MEO (Medium Earth Orbiting)
8. 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
In the 802.11 standard - IEEE specifies what type of access method?
Omnidirectional Antenna
Mobile Wireless
Fixed Wireless
9. An end node on a network; used most often in the context of wireless networks.
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
GEO (Geosynchronous Orbit or Geostationary Orbit)
Stations
Hot Spot
10. A. CSMA/CA
Stations
Downlink
In the 802.11 standard - IEEE specifies what type of access method?
Active Scanning
11. The use of multiple frequencies to transmit a signal. (because the signal is spread out over the wireless spectrum)
Association
Geosynchronous orbit
ESSID (Extended Service Set Identifier)
Spread Spectrum
12. 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
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
802.11 transmission requirement that contributes to its inefficiency
Radiation Pattern
SSID (Service Set Identifier)
13. An antenna's _______ _______ describes the relative strength over a three-dimensional area of all the electromagnetic energy the antenna sends or receives.
2.4 GHz
Radiation Pattern
MIMO (Multiple Input-Multiple Output)
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
14. A unique character string used to identify an access point on an 802.11 network.
ESS (Extended Service Set Identifier)
Wireless Spectrum
SSID (Service Set Identifier)
Omnidirectional Antenna
15. 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
MIMO (Multiple Input-Multiple Output)
iwconfig
Downlink
Mobile Wireless
16. A type of WLAN in which stations communicate with an access point and not directly with each other.
Infrastructure WLAN
BSSID (Basic Service Set Identifier)
Scattering
Association
17. 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.
Directional Antenna
Frame aggregation - Channel bonding
Omnidirectional Antenna
GEO (Geosynchronous Orbit or Geostationary Orbit)
18. A destination node must issue an acknowledgment for every packet that is received intact.
802.11 transmission requirement that contributes to its inefficiency
Wireless
DSSS (Direct-Sequence Spread Spectrum)
Satellite Return
19. The relative strength over a three dimensional area of all the electromagnetic energy an antenna sends or receives.
Established the credentials the wireless interface will use to communicate securely with the access point
Radiation pattern
Fading
Bluetooth
20. 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.
BSSID (Basic Service Set Identifier)
MIMO (Multiple Input-Multiple Output)
Site Survey
Transponder
21. In _____ - a transmitter concentrates the signal energy at a single frequency or in a very small range of frequencies.
Narrowband
5 GHz Band
5 GHz
LOS (Line of Sight)
22. A command-line utility for viewing and setting wireless interface parameters on Linux and UNIX workstations.
Stations
iwconfig
Wireless Gateway
Mobile Wireless
23. A group of access points and associated stations (or basic service sets) connected to the same LAN.
5 GHz Band
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
ESS (Extended Service Set Identifier)
Narrowband
24. 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
Satellite Return
Reflection
Omnidirectional Antenna
Reassociation
25. Networks that transmit signals through the atmosphere via radio frequency (RF) waves.
MIMO (Multiple Input-Multiple Output)
Fading
FHSS (Frequency Hopping Spread Spectrum)
WLAN
26. ISM Range - Radio frequency band that may experience home appliance interference - Unregulated radio frequency band.
2.4 GHz
Fixed Wireless
MEO (Medium Earth Orbiting)
GEO (Geosynchronous Orbit or Geostationary Orbit)
27. In the context of wireless networking - a frame issued by an access point to alert other nodes of its existence.
Range
ESS (Extended Service Set Identifier)
Scattering
Beacon Frame
28. 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.
Bluetooth
Range
DSSS (Direct-Sequence Spread Spectrum)
Access Point
29. 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.
Reflection
Site Survey
Mobile Wireless
5 GHz
30. Which techniques help to reduce overhead in 802.11n wireless transmission?
PAN (Personal Area Network)
FHSS (Frequency Hopping Spread Spectrum)
Reassociation
Frame aggregation - Channel bonding
31. Which type of satellites is used to provide satellite Internet access?
Geosynchronous orbit
2.4 GHz
Frame aggregation - Channel bonding
Mobile Wireless
32. 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.
Scattering
Passive Scanning
Site Survey
5 GHz Band
33. Omnidirectional
Wireless Router
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
FHSS (Frequency Hopping Spread Spectrum)
Omnidirectional Antenna
34. The geographical area in which signals issued from an antenna or wireless system can be consistently and accurately received.
Range
Reassociation
Fading
Wireless Router
35. This type of propagation uses the least amount of energy and results in the reception of the clearest possible signal.
Ad Hoc
LOS (Line of Sight)
Association
MIMO (Multiple Input-Multiple Output)
36. An access point that provides routing functions.
Site Survey
Transponder
Wireless Router
Fading
37. In 802.11 wireless networking - a type of frame issued by a station during active scanning to find nearby access points.
Access Point
Probe
Bluetooth Special Interest Group (SIG)
Bluetooth
38. A consortium of companies - including Sony Ericsson - Intel - Nokia - Toshiba - and IBM - that formally banded together in 1998 to refine and standardize Bluetooth technology.
5 GHz Band
Bluetooth Special Interest Group (SIG)
Site Survey
Established the credentials the wireless interface will use to communicate securely with the access point
39. A connection from an orbiting satellite to an Earth -based receiver.
ESSID (Extended Service Set Identifier)
Association
Bluetooth Special Interest Group (SIG)
Downlink
40. The process a wireless station undergoes to find an access point.
iwconfig
canning
ESSID (Extended Service Set Identifier)
Stations
41. The signals made of electromagnetic energy that travel through the atmosphere.
Hot Spot
DSSS (Direct-Sequence Spread Spectrum)
Wireless
Site Survey
42. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.
Hot Spot
Established the credentials the wireless interface will use to communicate securely with the access point
PAN (Personal Area Network)
Wireless Broadband
43. 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.
canning
Reassociation
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
Site Survey
44. 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.
iwconfig
Narrowband
Fading
RTS/CTS (Request to Send/Clear to Send)
45. Why are the 802.11b and 802.11g wireless transmission technologies more commonly used on business LANs than Bluetooth?
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
Bluetooth Special Interest Group (SIG)
Bluetooth
Transponder
46. In wireless networking - the process that describes a station moving between BSSs without losing connectivity.
Frame aggregation - Channel bonding
Fading
MEO (Medium Earth Orbiting)
Roaming
47. A small (usually home) network composed of personal communications devices.
RTS/CTS (Request to Send/Clear to Send)
Infrastructure WLAN
PAN (Personal Area Network)
Hot Spot
48. 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
Wireless Spectrum
Radiation Pattern
Bluetooth
Geosynchronous orbit
49. 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.
canning
GEO (Geosynchronous Orbit or Geostationary Orbit)
Infrastructure WLAN
Access Point
50. What frequency band is used by Bluetooth - 802.11b - and 802.11g?
DSSS (Direct-Sequence Spread Spectrum)
B. 2.4 GHz
Active Scanning
In the 802.11 standard - IEEE specifies what type of access method?