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