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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. On August 31 - 2000 - the FCC mandated that FHSS systems using fewer than 75 hops must have a maximum power output of ___ mW.
Beacon
obstructions
Multipath
125
2. The ____ node problem can be caused by interfering obstacles between clients.
Multipath
hidden
1:10
Time
3. ____ is the data modulation method used in FHSS.
Passive
Channels
GFSK
Multipath
4. The FHSS hopset can be determined by listening to traffic on each of the hopping ____.
power
AP
64QAM
Channels
5. WEP keys are also known as ____ Secrets.
omni
1:10
Shared
Access
6. The spread spectrum FHSS exhibits resistance to narrowband __ interference by design.
Multipath
RF
semi
omni
7. The 802.11 standard contains 2.4 GHz FHSS - 2.4 GHz DSSS - and ____.
125
QPSK
Channels
infrared
8. A gain of +3dB yieds a power ratio of __.
Multipath
LEAP
2:1
3
9. Antenna diversity compensates for a wireless LAN problem called ____.
licensing
Passive
Multipath
i
10. Beacon frames are used for ____ synchronization and passing channel selection information.
Time
Channels
Access
Extended Service Set
11. DSSS uses channels that are ___ MHz wide to transmit data in the 2.4 GHz ISM band.
AP
22
i
Multipath
12. Before going to sleep - a wireless station must notify the ____ of its intention to sleep.
Diffraction
GFSK
22
AP
13. Yagi and Patch antennas are examples of ____-directional antennas.
22
Passive
AP
semi
14. ____ System Authentication is a secure method of client device authentication onto a WLAN.
1:10
64QAM
RF
Open
15. Body of water - flat stretch of earth - and metal roofs are considered to be smooth surfaces that can cause ____path.
infrared
Multipath
dB
60
16. WLAN client-side devices use the security features EAP and ____.
LEAP
Access
1:10
Channel
17. A sequence of hops in a FHSS system is referred to as a ____.
Beacon
Channel
Multipath
RF
18. A parabolic ____ is one type of a highly directional antenna.
omni
BSS
QPSK
dish
19. T/F FHSS is inherently more secure than DSSS.
Channels
False
QPSK
3
20. The two RF spread spectrum technologies in the IEEE 802.11 standard is FHSS and ____.
Shared
dB
LEAP
DSSS
21. 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 ____.
Channels
licensing
Diffraction
i
22. In Infrastructure mode a single access point (AP) together with all associated stations (STAs) is called a ____.
Shared
BSS
125
dB
23. 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.
AP
Passive
LEAP
Extended Service Set
24. The range of RF transmissions increases with greater transmitting ____ - not frequency.
BSS
power
dish
Time
25. All access points transmit a ____ management frame at a fixed interval.
3
obstructions
64QAM
Beacon
26. Dipole antennas are ____-directional antennas.
Extended Service Set
obstructions
omni
GFSK
27. MAC filters can be implemented on a WLAN on an ____ point or on a RADIUS server.
Multipath
Access
IBSS (Independent Basic Service Set)
infrared
28. A loss of -10dB yields a power ratio of ____.
Passive
omni
Channels
1:10
29. The weather and future ____ should be considered when erecting a 2.4GHz WLAN outside antenna.
obstructions
LEAP
125
GFSK
30. Part of the roaming process involves Implementing Mobile IP - Active Scanning - and ____ Scanning.
Extended Service Set
Diffraction
Passive
dB
31. Insertion loss on WLAN splitters are measured in what units?
60
22
dB
Time
32. The FCC deals with RF Output power limits - appropriate RF Frequency band use - and ____ of frequency bands.
Shared
LEAP
licensing
125
33. Bluetooth uses a type of data modulation called ____.
dB
GFSK
Passive
Multipath
34. DSSS systems support a maximum of __ APs in a co-located environment.
Access
omni
3
60
35. The two types of WLAN scanning are active scanning and ____ scanning.
Channel
Multipath
Passive
Access
36. To achieve 54 Mbps - 802.11a uses which type of data modulation?
64QAM
LEAP
i
Multipath
37. Data modulation methods in DSSS systems are BPSK and ____.
QPSK
omni
semi
3
38. The units for relative power are dB and dB_.
hidden
False
LEAP
i
39. The Fresnel Zone must be at least __% cleared of obstructions.
Shared
60
LEAP
3
40. 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
Multipath
IBSS (Independent Basic Service Set)
Diffraction
Access