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Test your basic knowledge |
Wireless Certification
Start Test
Study First
Subjects
:
it-skills
,
certifications
Instructions:
Answer 40 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. Body of water - flat stretch of earth - and metal roofs are considered to be smooth surfaces that can cause ____path.
GFSK
Channel
Multipath
IBSS (Independent Basic Service Set)
2. In Infrastructure mode a single access point (AP) together with all associated stations (STAs) is called a ____.
125
22
False
BSS
3. The two types of WLAN scanning are active scanning and ____ scanning.
Passive
2:1
licensing
QPSK
4. With 802.11 it is possible to create an ad-hoc network of client devices without a controlling Access Point called an ____ - in which case the SSID is chosen by the client device that starts the network - and broadcasting of the SSID is performed in
power
IBSS (Independent Basic Service Set)
Passive
QPSK
5. MAC filters can be implemented on a WLAN on an ____ point or on a RADIUS server.
licensing
Access
Passive
False
6. The weather and future ____ should be considered when erecting a 2.4GHz WLAN outside antenna.
i
Time
obstructions
Multipath
7. An ____ is a set of one or more interconnected BSSs and integrated local area networks (LANs) that appear as a single BSS to the logical link control layer at any station associated with one of those BSSs.
Open
obstructions
Diffraction
Extended Service Set
8. ____ System Authentication is a secure method of client device authentication onto a WLAN.
infrared
Open
BSS
semi
9. The 802.11 standard contains 2.4 GHz FHSS - 2.4 GHz DSSS - and ____.
BSS
2:1
dB
infrared
10. To achieve 54 Mbps - 802.11a uses which type of data modulation?
dish
infrared
QPSK
64QAM
11. Insertion loss on WLAN splitters are measured in what units?
False
dB
Access
Beacon
12. The two RF spread spectrum technologies in the IEEE 802.11 standard is FHSS and ____.
Channel
DSSS
GFSK
2:1
13. Yagi and Patch antennas are examples of ____-directional antennas.
RF
Passive
semi
Open
14. The units for relative power are dB and dB_.
i
Passive
BSS
omni
15. The ____ node problem can be caused by interfering obstacles between clients.
hidden
Access
Passive
Extended Service Set
16. A sequence of hops in a FHSS system is referred to as a ____.
Channel
GFSK
125
RF
17. DSSS systems support a maximum of __ APs in a co-located environment.
dB
Passive
Channel
3
18. A loss of -10dB yields a power ratio of ____.
omni
Passive
Time
1:10
19. Part of the roaming process involves Implementing Mobile IP - Active Scanning - and ____ Scanning.
Passive
Beacon
semi
60
20. Bluetooth uses a type of data modulation called ____.
GFSK
22
Passive
infrared
21. WEP keys are also known as ____ Secrets.
AP
2:1
BSS
Shared
22. ____ is the data modulation method used in FHSS.
GFSK
hidden
RF
AP
23. T/F FHSS is inherently more secure than DSSS.
False
semi
3
1:10
24. Data modulation methods in DSSS systems are BPSK and ____.
QPSK
AP
Multipath
Open
25. Dipole antennas are ____-directional antennas.
Multipath
DSSS
omni
125
26. The spread spectrum FHSS exhibits resistance to narrowband __ interference by design.
GFSK
RF
2:1
omni
27. A gain of +3dB yieds a power ratio of __.
2:1
22
RF
60
28. The range of RF transmissions increases with greater transmitting ____ - not frequency.
BSS
22
Multipath
power
29. A parabolic ____ is one type of a highly directional antenna.
hidden
DSSS
Open
dish
30. Antenna diversity compensates for a wireless LAN problem called ____.
False
QPSK
dish
Multipath
31. Before going to sleep - a wireless station must notify the ____ of its intention to sleep.
AP
Open
power
Shared
32. DSSS uses channels that are ___ MHz wide to transmit data in the 2.4 GHz ISM band.
2:1
22
Open
power
33. The FCC deals with RF Output power limits - appropriate RF Frequency band use - and ____ of frequency bands.
125
licensing
semi
3
34. On August 31 - 2000 - the FCC mandated that FHSS systems using fewer than 75 hops must have a maximum power output of ___ mW.
125
GFSK
semi
Diffraction
35. The Fresnel Zone must be at least __% cleared of obstructions.
False
60
DSSS
AP
36. WLAN client-side devices use the security features EAP and ____.
60
infrared
LEAP
Shared
37. A change in the direction and intensity of a group of waves after passing by an obstacle or the bending of waves around an object is referred to as ____.
GFSK
Passive
Diffraction
Open
38. The FHSS hopset can be determined by listening to traffic on each of the hopping ____.
obstructions
1:10
Channels
Access
39. All access points transmit a ____ management frame at a fixed interval.
Extended Service Set
Multipath
Beacon
i
40. Beacon frames are used for ____ synchronization and passing channel selection information.
Time
22
RF
64QAM