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