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