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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 consortium of companies - including Sony Ericsson - Intel - Nokia - Toshiba - and IBM - that formally banded together in 1998 to refine and standardize Bluetooth technology.
MIMO (Multiple Input-Multiple Output)
Bluetooth Special Interest Group (SIG)
LOS (Line of Sight)
Fixed Wireless
2. Why are the 802.11b and 802.11g wireless transmission technologies more commonly used on business LANs than Bluetooth?
Multipath signals
Range
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
Radiation Pattern
3. A connection from an orbiting satellite to an Earth -based receiver.
Downlink
Ad Hoc
Beacon Frame
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
4. 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)
Wireless Broadband
B. 2.4 GHz
Diffraction
BSSID (Basic Service Set Identifier)
5. Networks that transmit signals through the atmosphere via radio frequency (RF) waves.
BSSID (Basic Service Set Identifier)
Established the credentials the wireless interface will use to communicate securely with the access point
WLAN
Transponder
6. An ______ ______ issues and receives wireless signals with equal strength and clarity in all directions. This type of antenna is used when many different receivers must be able to pick up the signal - or when the receiver's location is highly mobile.
Omnidirectional Antenna
ESSID (Extended Service Set Identifier)
Bluetooth
Reflection
7. 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.
RTS/CTS (Request to Send/Clear to Send)
Spread Spectrum
Wireless Router
WLAN
8. 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.
PAN (Personal Area Network)
Bluetooth
ESS (Extended Service Set Identifier)
Transponder
9. In _____ - a transmitter concentrates the signal energy at a single frequency or in a very small range of frequencies.
Radiation Pattern
ESSID (Extended Service Set Identifier)
Fixed Wireless
Narrowband
10. A type of WLAN in which stations communicate with an access point and not directly with each other.
LEO (Low Earth Orbiting)
Radiation pattern
Infrastructure WLAN
B. 2.4 GHz
11. Omnidirectional
Site Survey
Passive Scanning
Reassociation
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
12. A group of access points and associated stations (or basic service sets) connected to the same LAN.
Channel Bonding
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
ESS (Extended Service Set Identifier)
Access Point
13. This type of propagation uses the least amount of energy and results in the reception of the clearest possible signal.
Wireless Broadband
Fading
BSSID (Basic Service Set Identifier)
LOS (Line of Sight)
14. 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.
ESSID (Extended Service Set Identifier)
DSSS (Direct-Sequence Spread Spectrum)
5 GHz
Wireless Broadband
15. In ________________ - a signal jumps between several different frequencies within a band in a synchronization pattern known only to the channel's receiver and transmitter.
ESSID (Extended Service Set Identifier)
Channel Bonding
Fixed Wireless
FHSS (Frequency Hopping Spread Spectrum)
16. The geographical area in which signals issued from an antenna or wireless system can be consistently and accurately received.
Range
Radiation pattern
Probe
Active Scanning
17. ISM Range - Radio frequency band that may experience home appliance interference - Unregulated radio frequency band.
Hot Spot
MEO (Medium Earth Orbiting)
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
2.4 GHz
18. A method of satellite Internet access in which a subscriber receives data via a satellite downlink transmission - but sends data to the satellite via an analog modem (dial-up) connections.
Multipath signals
Dial Return
PAN (Personal Area Network)
WLAN
19. The use of multiple frequencies to transmit a signal. (because the signal is spread out over the wireless spectrum)
Spread Spectrum
Passive Scanning
Geosynchronous orbit
Beacon Frame
20. In IEEE terminology - the identifier for a BSS (basic service set)
Scattering
BSSID (Basic Service Set Identifier)
RTS/CTS (Request to Send/Clear to Send)
Reflection
21. 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
Access Point
FHSS (Frequency Hopping Spread Spectrum)
Satellite Return
Site Survey
22. 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
WLAN
Fading
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
MIMO (Multiple Input-Multiple Output)
23. 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.
MEO (Medium Earth Orbiting)
Transponder
Wireless Spectrum
5 GHz Band
24. Which techniques help to reduce overhead in 802.11n wireless transmission?
DSSS (Direct-Sequence Spread Spectrum)
Frame aggregation - Channel bonding
Fading
Association
25. 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.
Access Point
Fading
Passive Scanning
Roaming
26. 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.
Stations
Wireless Broadband
Directional Antenna
SSID (Service Set Identifier)
27. 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
Spread Spectrum
2.4 GHz
Wireless Spectrum
28. 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
Fixed Wireless
Infrastructure WLAN
Bluetooth
29. A type of wireless LAN in which stations communicate directly with each other (rather than using an access point)
Ad Hoc
DSSS (Direct-Sequence Spread Spectrum)
Wireless Spectrum
BSSID (Basic Service Set Identifier)
30. 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
Wireless Spectrum
Reassociation
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
5 GHz
31. 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
Hot Spot
Spread Spectrum
Roaming
32. In the context of wireless networking - the process of a station establishing a connection (or associating) with a different access point.
Scattering
Fixed Wireless
Reassociation
SSID (Service Set Identifier)
33. A small (usually home) network composed of personal communications devices.
PAN (Personal Area Network)
ESSID (Extended Service Set Identifier)
B. 2.4 GHz
FHSS (Frequency Hopping Spread Spectrum)
34. The process a wireless station undergoes to find an access point.
RTS/CTS (Request to Send/Clear to Send)
2.4 GHz
canning
Radiation pattern
35. 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
Bluetooth
Transponder
MIMO (Multiple Input-Multiple Output)
FHSS (Frequency Hopping Spread Spectrum)
36. 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.
Probe
Mobile Wireless
A beacon frame
Stations
37. In 802.11 wireless networking - a type of frame issued by a station during active scanning to find nearby access points.
Passive Scanning
Probe
MEO (Medium Earth Orbiting)
Ad Hoc
38. In the context of wireless networking - a frame issued by an access point to alert other nodes of its existence.
Beacon Frame
MIMO (Multiple Input-Multiple Output)
Infrastructure WLAN
Range
39. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.
Wireless Gateway
Hot Spot
SSID (Service Set Identifier)
Bluetooth Special Interest Group (SIG)
40. The relative strength over a three dimensional area of all the electromagnetic energy an antenna sends or receives.
Radiation pattern
Omnidirectional Antenna
Bluetooth Special Interest Group (SIG)
MEO (Medium Earth Orbiting)
41. Regulated radio frequency band - 1/3rd range of 802.11b or g - Usually found in corporate environments.
Dial Return
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
5 GHz
MIMO (Multiple Input-Multiple Output)
42. An access point that provides routing functions.
Omnidirectional Antenna
A beacon frame
Wireless Router
Frame aggregation - Channel bonding
43. 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.
Wireless Broadband
GEO (Geosynchronous Orbit or Geostationary Orbit)
Multipath signals
Omnidirectional Antenna
44. An end node on a network; used most often in the context of wireless networks.
ESSID (Extended Service Set Identifier)
Stations
A beacon frame
Active Scanning
45. 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.
Fading
LEO (Low Earth Orbiting)
Radiation pattern
Wireless Broadband
46. An antenna's _______ _______ describes the relative strength over a three-dimensional area of all the electromagnetic energy the antenna sends or receives.
DSSS (Direct-Sequence Spread Spectrum)
Directional Antenna
Radiation Pattern
Range
47. In the context of 802.11n wireless technology - the combination of two 20-MHz frequency band to create one 40-MHz frequency band that can carry more than twice the amount of data that a single 20-MHz band could. It's recommended for use only in the 5
Channel Bonding
Range
Radiation Pattern
Hot Spot
48. What frequency band is used by Bluetooth - 802.11b - and 802.11g?
Frame aggregation - Channel bonding
Roaming
B. 2.4 GHz
RTS/CTS (Request to Send/Clear to Send)
49. In wireless networking - the process that describes a station moving between BSSs without losing connectivity.
Roaming
Mobile Wireless
Channel Bonding
Infrastructure WLAN
50. 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
Bluetooth
Reflection
Directional Antenna
LOS (Line of Sight)