Planning and Managing Wireless LANs – Final Exam

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Question 1 of 50

1. Question
All of the following are primary wirelss LAN connection types except:
- Ad-hoc connections between wireless devices
- Point-to-point connections between two wired networks
- As an extension of the wired network for a group of users
- As a replacement for a wired network
Question 2 of 50

2. Question
Which of the following is NOT a disadvantage of a wireless LAN?
- More susceptible to interference
- More expensive than wired network connections
- Provide greater flexibility
- Provide limited network speeds compared to wired networks
Question 3 of 50

3. Question
The IEEE 802.11 standard specifies using what signaling technology for wireless LANs?
- Set frequency
- Spread spectrum
- Analog modulation
- Amplitude modulation
Question 4 of 50

4. Question
Which organization makes the laws related to the wireless frequencies used by wireless LANs?
- TIA
- IEEE
- FCC
- SEC
Question 5 of 50

5. Question
What ISM band is used by 801.11g wireless devices in the United States?
- 902 to 928 MHz
- 2.400 to 2.483 GHz
- 5.15 to 5.35 GHz
- 5.7250 to 5.8250 GHz
Question 6 of 50

6. Question
What is the maximum output power specified by IEEE for the middle 5 GHz UNII band?
- 50 mW
- 100 mW
- 200 mW
- 1000 mW
Question 7 of 50

7. Question
What is the maximum output power specified by IEEE for the upper 5 GHz UNII band?
- 50 mW
- 100 mW
- 200 mW
- 1000 mW
Question 8 of 50

8. Question
The FCC allows how many watts of power to be radiated from an antenna in a point-to- multipoint wireless LAN connection using unlicensed 2.4 GHz spread spectrum equipment?
- 1 watt
- 2 watts
- 3 watts
- 4 watts
Question 9 of 50

9. Question
What OSI layers are covered by the 802.11 standard?
- Layers 1 and 2
- Layers 2 and 3
- Layers 3 and 4
- Layers 4 through 7
Question 10 of 50

10. Question
The IEEE 802.11 standard supports ___-bit MAC addressing.
- 20
- 36
- 48
- 64
Question 11 of 50

11. Question
The IEEE 802.11 standard requires that all stations use which MAC protocol?
- CSMA/CD
- CSMA/CA
- Collision detection
- Random sequencing
Question 12 of 50

12. Question
What is the maximum length of the data field in an 802.11 frame?
- 1500 bytes
- 1970 bytes
- 2230 bytes
- 2312 bytes
Question 13 of 50

13. Question
What is the maximum speed specified in the 802.11a wireless standard?
- 11 Mb/s
- 54 Mb/s
- 108 Mb/s
- 600 Mb/s
Question 14 of 50

14. Question
In order to achieve speeds of 54 Mb/s, 802.11g devices use what coding scheme?
- OFDM
- CCK
- Barker
- Non return to zero
Question 15 of 50

15. Question
An 802.11n wireless LAN uses what technology to send multiple radio signals at the same time and take advantage of multipath?
- Chipping codes
- Multi signaling
- MIMO
- Cohesive signal combining
Question 16 of 50

16. Question
Which of the following is not one of the enhancements to the 802.11n wireless standard in order to increase network speed?
- Higher channel frequencies
- Increased channel size
- Higher modulation rates
- Reduced overhead
Question 17 of 50

17. Question
Which of the following organizations has a mission to certify interoperability of WiFi products?
- Wireless Ethernet Compatibility Alliance (WECA)
- European Telecommunications Standards Institute (ETSI)
- Wireless LAN Association (WLANA)
- Wireless consortium of equipment manufacturers (WCEM)
Question 18 of 50

18. Question
The signal from an omni-directional antenna radiates in a _______ horizontal beam.
- 120 degree
- 180 degree
- 270 degree
- 360 degree
Question 19 of 50

19. Question
Wireless LANs use _____ polarization.
- Vertical
- Horizontal
- High gain
- Low loss
Question 20 of 50

20. Question
You have been hired as a consultant to install a wireless LAN that will connect two buildings that are 10 miles apart. In this particular area, wind gusts are a problem. Which one of the following antennas would you use?
- High-gain Grid
- High-gain Dipole
- High-gain Yagi
- Directional
Question 21 of 50

21. Question
When should an omni-directional antenna be used?
- When coverage in all horizontal directions from the antenna is required
- When coverage in a specific direction is required
- When coverage is required over more than 7 miles in a specific direction
- To provide vertical coverage
Question 22 of 50

22. Question
Antenna gain is specified in _______.
- dBi
- dBm
- dB
- dBa
Question 23 of 50

23. Question
The width of a wireless LAN signal is referred to as __________.
- Polarization
- Gain
- Beamwidth
- Free Space Path Loss
Question 24 of 50

24. Question
Free Space Path Loss refers to the loss incurred by an RF signal due largely to ________.
- Signal attenuation
- Signal dispersion
- Signal propagation
- Signal reflection
Question 25 of 50

25. Question
Each _____ dB increase in EIRP equates to a doubling of range.
- 2 dB
- 3 dB
- 6 dB
- 10 dB
Question 26 of 50

26. Question
The updated IEEE 802.3at-2009 PoE standard also known as PoE+ or PoE plus, provides up to _______ of power.
- 15.4 W
- 19.4 W
- 25.5 W
- 45.5 W
Question 27 of 50

27. Question
What wireless LAN accessory is used to increase the amplitude of an RF signal?
- RF Amplifiers
- RF Attenuators
- Lightning Arrestors
- RF Connectors
Question 28 of 50

28. Question
What device is used to protect wireless antenna that are installed outdoors?
- RF Amplifiers
- RF Attenuators
- Lightning Arrestors
- RF Connectors
Question 29 of 50

29. Question
What is the recommend impedance of lightning arrestors in most wireless LANs?
- 25 ohms
- 50 ohms
- 75 ohms
- 93 ohms
Question 30 of 50

30. Question
All of the following connector types are traditionally used on wireless LANs except:
- N connectors
- BNC connectors
- TNC connectors
- RC connectors
Question 31 of 50

31. Question
__________ are used to adapt proprietary connectors to industry standard connectors like N-type and SMA connectors.
- Patch cables
- Work cables
- RF Adapters
- Pigtails
Question 32 of 50

32. Question
What was the first security protocol specified for 802.11 wireless LANs?
- AES
- Block code cipher
- WEP
- WPA2
Question 33 of 50

33. Question
Which piece of information on a wireless LAN is encrypted with WEP enabled?
- The data payload of the frame (layer 3 data)
- The MAC addresses of the frame
- Beacon management frames
- Shared Key challenge plaintext
Question 34 of 50

34. Question
What are the basis for the WEP encryption algorithm?
- WEP cipher
- WEP encoding
- WEP decoding
- WEP keys
Question 35 of 50

35. Question
AES uses which one of the following encryption algorithms?
- Fresnel
- NAV
- Rijndale
- Rinehart
Question 36 of 50

36. Question
For 802.11i, the AES block size as well as the per-packet key size is _____-bit.
- 64 bit
- 128 bit
- 512 bit
- 1024 bit
Question 37 of 50

37. Question
Which of the following is NOT one of the three basic types of filtering that can be performed on a wireless LAN?
- RF signal filtering
- SSID filtering
- MAC address filtering
- Protocol filtering
Question 38 of 50

38. Question
Eavesdropping is an example of what type of attack on a wireless LAN?
- Passive attacks
- Active attacks
- Jamming attacks
- Man-in-the-middle attacks
Question 39 of 50

39. Question
What type of attack on a wireless LAN involves configuring the network without authorization?
- Passive attacks
- Active attacks
- Jamming attacks
- Man-in-the-middle attacks
Question 40 of 50

40. Question
What type of attack on a wireless LAN uses an access point to hijack mobile nodes?
- Passive attacks
- Active attacks
- Jamming attacks
- Man-in-the-middle attacks
Question 41 of 50

41. Question
What is the MOST IMPORTANT information that must be understood in order to properly design a wireless LAN?
- The equipment that will be used now and in the future
- The purpose and business requirement of the wireless LAN
- The coverage that will be required for the wireless LAN
- The security that will be required to secure the wireless LAN
Question 42 of 50

42. Question
When designing a wireless LAN, which of the following is required to calculate how much throughput each user is going to have?
- Understanding how many users will be located in a given area
- Understanding the types of wireless devices will be used
- Understanding the type of data will be transmitted
- Understanding how much data will be transmitted
Question 43 of 50

43. Question
A _________ is a task-by-task process by which the surveyor discovers the RF behavior, coverage, interference, and determines proper hardware placement in a facility.
- Requirements analysis
- Site survey
- Technology analysis
- Wireless chatter
Question 44 of 50

44. Question
When preparing to perform a site survey, all of the following are required except:
- Building blueprints (including power source documentation)
- Current network diagram (topology map)
- Access to TRs
- Access to all users of the existing network
Question 45 of 50

45. Question
In order to perform a quality site survey, which is not a measurement should be recorded?
- Signal strength (measured in dBm)
- Data packet size (measured in MB)
- Noise floor (measured in dBm)
- Signal-to-noise ratio (measured in dB)
Question 46 of 50

46. Question
What tool is useful for a site survey because it can find sources of RF interference?
- Power meter
- Attenuation meter
- Spectrum analyzer
- Ohm meter
Question 47 of 50

47. Question
What test measures the strength of the RF signal versus the background noise?
- RF amplitude
- RF frequency response
- Attenuation to Crosstalk Ratio
- Signal to Noise Ratio
Question 48 of 50

48. Question
Blockage of the RF signal can cause _______.
- RF anomalies
- RF dead zones
- RF reflections
- RF refractions
Question 49 of 50

49. Question
An access point is used during a site survey to determine _______.
- RF reflections encountered in the environment
- RF refraction encountered in the environment
- Sizing of the wireless cells and data rate boundaries in the environment
- Noise in the environment
Question 50 of 50

50. Question
Which of the following is NOT one of the effects of multipath?
- Increased noise
- Signal Amplitude (downfade)
- Corruption
- Nulling

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