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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. Why are the 802.11b and 802.11g wireless transmission technologies more commonly used on business LANs than Bluetooth?
In the 802.11 standard - IEEE specifies what type of access method?
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
Site Survey
2.4 GHz Band
2. 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
FHSS (Frequency Hopping 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?
LEO (Low Earth Orbiting)
3. Omnidirectional
Dial Return
ESS (Extended Service Set Identifier)
Passive Scanning
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
4. 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.
Ad Hoc
Passive Scanning
Scattering
Directional Antenna
5. What frequency band is used by Bluetooth - 802.11b - and 802.11g?
B. 2.4 GHz
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
FHSS (Frequency Hopping Spread Spectrum)
Site Survey
6. 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)
In the 802.11 standard - IEEE specifies what type of access method?
A beacon frame
Spread Spectrum
Diffraction
7. In IEEE terminology - the identifier for a BSS (basic service set)
BSSID (Basic Service Set Identifier)
LOS (Line of Sight)
Reassociation
ESS (Extended Service Set Identifier)
8. On your Linux workstation - you open a terminal window and type at the command prompt iwconfig eth0 key 5c00951b22. What have you done?
Hot Spot
Established the credentials the wireless interface will use to communicate securely with the access point
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
MEO (Medium Earth Orbiting)
9. A destination node must issue an acknowledgment for every packet that is received intact.
Satellite Return
5 GHz
802.11 transmission requirement that contributes to its inefficiency
Reflection
10. 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
Passive Scanning
PAN (Personal Area Network)
5 GHz
11. 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.
Transponder
Access Point
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
12. 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
5 GHz Band
Channel Bonding
Established the credentials the wireless interface will use to communicate securely with the access point
Access Point
13. A method used by wireless stations to detect the presence of an access point. In _____ _____ - the station issues a probe to each channel in its frequency range and waits for the access point to respond.
2.4 GHz
canning
Wireless Spectrum
Active Scanning
14. 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
Wireless Gateway
iwconfig
Dial Return
15. 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
Association
Transponder
Satellite Return
MEO (Medium Earth Orbiting)
16. 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
In the 802.11 standard - IEEE specifies what type of access method?
MIMO (Multiple Input-Multiple Output)
Geosynchronous orbit
ESS (Extended Service Set Identifier)
17. A unique character string used to identify an access point on an 802.11 network.
Active Scanning
SSID (Service Set Identifier)
Fixed Wireless
RTS/CTS (Request to Send/Clear to Send)
18. In _____ - a transmitter concentrates the signal energy at a single frequency or in a very small range of frequencies.
Omnidirectional Antenna
Narrowband
DSSS (Direct-Sequence Spread Spectrum)
Channel Bonding
19. The process a wireless station undergoes to find an access point.
canning
Wireless Router
Beacon Frame
WLAN
20. A. CSMA/CA
Satellite Return
LEO (Low Earth Orbiting)
In the 802.11 standard - IEEE specifies what type of access method?
2.4 GHz
21. 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)
FHSS (Frequency Hopping Spread Spectrum)
Channel Bonding
Fixed Wireless
22. In 802.11 wireless networking - a type of frame issued by a station during active scanning to find nearby access points.
Probe
Transponder
Fading
Fixed Wireless
23. A group of access points and associated stations (or basic service sets) connected to the same LAN.
ESS (Extended Service Set Identifier)
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
Frame aggregation - Channel bonding
Dial Return
24. In the context of wireless networking - the process of a station establishing a connection (or associating) with a different access point.
Directional Antenna
Bluetooth Special Interest Group (SIG)
Downlink
Reassociation
25. Which type of satellites is used to provide satellite Internet access?
Wireless Router
Geosynchronous orbit
RTS/CTS (Request to Send/Clear to Send)
Infrastructure WLAN
26. This type of propagation uses the least amount of energy and results in the reception of the clearest possible signal.
Satellite Return
2.4 GHz
ESSID (Extended Service Set Identifier)
LOS (Line of Sight)
27. The geographical area in which signals issued from an antenna or wireless system can be consistently and accurately received.
Range
2.4 GHz
Wireless Gateway
In the 802.11 standard - IEEE specifies what type of access method?
28. A command-line utility for viewing and setting wireless interface parameters on Linux and UNIX workstations.
Wireless Router
Infrastructure WLAN
To transmit and receive signals to and from multiple nodes in a three-storey house - what type of antenna should an access point use?
iwconfig
29. 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
Scattering
Association
Bluetooth
Narrowband
30. In the context of wireless networking - the communication that occurs between a station and an access point to enable the station to connect to the network via that access point.
Wireless Router
Probe
PAN (Personal Area Network)
Association
31. Which techniques help to reduce overhead in 802.11n wireless transmission?
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
Radiation pattern
Frame aggregation - Channel bonding
Infrastructure WLAN
32. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
Hot Spot
Satellite Return
In the 802.11 standard - IEEE specifies what type of access method?
33. A consortium of companies - including Sony Ericsson - Intel - Nokia - Toshiba - and IBM - that formally banded together in 1998 to refine and standardize Bluetooth technology.
DSSS (Direct-Sequence Spread Spectrum)
Site Survey
Spread Spectrum
Bluetooth Special Interest Group (SIG)
34. 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.
Ad Hoc
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
Fading
Beacon Frame
35. 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.
Active Scanning
DSSS (Direct-Sequence Spread Spectrum)
Reassociation
Wireless Router
36. A special identifier shared by BSSs that belong to the same ESS.
802.11 signals travel farther than Bluetooth signals- 802.11 technologies transmit data at higher throughputs than Bluetooth.
ESSID (Extended Service Set Identifier)
Access Point
Wireless Broadband
37. An antenna's _______ _______ describes the relative strength over a three-dimensional area of all the electromagnetic energy the antenna sends or receives.
Radiation Pattern
Fading
DSSS (Direct-Sequence Spread Spectrum)
MEO (Medium Earth Orbiting)
38. In the context of wireless networking - a frame issued by an access point to alert other nodes of its existence.
Radiation Pattern
Reassociation
5 GHz
Beacon Frame
39. A type of WLAN in which stations communicate with an access point and not directly with each other.
MIMO (Multiple Input-Multiple Output)
Wireless Gateway
Infrastructure WLAN
Association
40. The signals made of electromagnetic energy that travel through the atmosphere.
Radiation Pattern
Wireless
Roaming
A beacon frame
41. A small (usually home) network composed of personal communications devices.
Wireless Router
PAN (Personal Area Network)
iwconfig
BSSID (Basic Service Set Identifier)
42. In wireless networking - the process that describes a station moving between BSSs without losing connectivity.
Roaming
Bluetooth Special Interest Group (SIG)
Beacon Frame
DSSS (Direct-Sequence Spread Spectrum)
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.
802.11 transmission requirement that contributes to its inefficiency
Active Scanning
GEO (Geosynchronous Orbit or Geostationary Orbit)
Directional Antenna
44. ISM Range - Radio frequency band that may experience home appliance interference - Unregulated radio frequency band.
ESSID (Extended Service Set Identifier)
2.4 GHz
Satellite Return
Frame aggregation - Channel bonding
45. 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
Fixed Wireless
WLAN
Mobile Wireless
Narrowband
46. 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.
Reassociation
Directional Antenna
iwconfig
canning
47. 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.
2.4 GHz Band
Wireless Spectrum
Roaming
Omnidirectional Antenna
48. 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
SSID (Service Set Identifier)
Directional Antenna
Active Scanning
49. 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.
Wireless Router
RTS/CTS (Request to Send/Clear to Send)
Transponder
Radiation pattern
50. An access point that provides routing functions and is used as a gateway.
Wireless Gateway
2.4 GHz
Wireless Router
Fixed Wireless