Prepking 2B0-015 Exam Questions

8/6/2019 Prepking 2B0-015 Exam Questions

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Exam : Enterasys Networks 2B0-015

Title : ES Wireless

Version : R6.1


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1. When configuring LAN-to-LAN Endpoint, which of the following do you need?

A. Wired MAC Address of the remote Access Point

B. Wireless MAC Address of the remote Access Point

C. IP Address of the remote Access Point

D. Different channels configured on both Access Points

Answer: B

2. What are two solutions to a "Hidden Station" problem?

A. Enable the RTS/CTS Protocol

B. Increase the transmission power of the station

C. Increase the Density setting

D. Move the problem station

Answer: AD

3. What media access method does the RoamAbout use?

A. CSMA/CD

B. Beacon exchange

C. Binary Sequential Back off

D. CSMA/CA

Answer: D

4. Up to how many buildings may be connected in a Point-to-Multipoint configuration?

A. 3

B. 7

C. 8

D. 12

Answer: B

5. In which of the following devices is the PC Radio Card NOT used?

A. Laptops

B. Carrier (adapter) modules

C. Omni-directional antenna

D. Wireless Ethernet AdapterAnswer: C

6. How do you avoid radio frequency interference within an area when positioning multiple APs with

802.11b PC Cards installed?

A. Configure different network names on the APs

B. Enable Secure Access

C. Configure overlapping cells at least five channels apart


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D. Maintain at least 100 meters distance between APs

Answer: C

7. Which of the following is NOT a source of radio interference?

A. Microwave ovens

B. Overhead power lines

C. Cable TV

D. Theft detection devices

Answer: C

8. What is the default password on the R2?

A. public

B. admin

C. password

D. private

Answer: C

9. When should an Upline Dump be enabled for the AP 2000?

A. When configuring the AP for an upgrade to its firmware

B. When troubleshooting a poor SNR

C. When copying configurations from one AP to another

D. When requested by a RoamAbout service representative

Answer: D

10. What does the RoamAbout employ, by default, to confirm successful frame delivery?

A. The receiving station sends a MAC level acknowledgement

B. Resolution by upper layer protocols (i.e., TCP) at the sending station

C. The sending station sends a source frame to verify delivery

D. There is no method of ensuring successful delivery

Answer: A

11. Which of the following does NOT affect the size of a cell?

A. Network utilization

B. Radio frequency noiseC. Transmit speeds

D. Humidity

Answer: D

12. Why is it important to read Release Notes when installing a wireless PC Card and its drivers?

A. To enable you to decipher LED indications

B. They include a PC Card license key


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C. To learn about restrictions and requirements for your OS

D. To learn what channels are supported in your geographic region

Answer: C

13. Which AP Manager utility is used during LAN-to-LAN installations to determine signal strength?

A. Authentication

B. Link test

C. Integrity Check

D. Site Monitor

Answer: B

14. What file extension is used for RoamAbout Boot ROM image files?

A. .txt

B. .asp

C. .WEP

D. .BIN

Answer: D

15. With Secure Access enabled on an AP with an IEEE 802.11b PC Card installed, which of the following is

true?

A. The AP allows access to wireless clients that use "ANY" as the wireless network name

B. The AP allows access to wireless clients that leave the wireless network name configuration blank

C. The AP denies access to wireless clients that do not provide the proper access password

D. The AP denies access to wireless clients that do not use the correct wireless network name

Answer: D

16. What is the name of AP Manager integrated BootP/TFTP server application?

A. RAT

B. NetRider

C. NetSight Atlas

D. NCM_PCOV

Answer: B

17. What type of cable is required to connect a terminal to the console port of the AP?A. Cross-over

B. Straight-through Cat 5

C. Null Modem DB9 to DB9

D. Multi-Mode Fiber

Answer: C

18. Where would you look to find what MIBs are supported on the RoamAbout Access Points?


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A. Firmware release notes

B. Guide to Wireless LANs

C. The Help file in your NMS

D. In the device .cfg file

Answer: A

19. What RMON groups are supported on the RoamAbout APs?

A. Statistics, Host, Alarm, Packet Capture

B. Statistics, History, Alarm, Events

C. History, Alarm, Matrix, Filter

D. All nine groups are supported

Answer: B

20. IEEE 802.11 stipulates the use of which security measure to make the wireless network at least as

secure as a normal wired LAN?

A. Host key generation

B. WEP Encryption

C. 802.1X Authentication

D. A lockable security box for the Access Point

Answer: B

21. Ad Hoc Mode is an example of which wireless topology?

A. EESS ?External Extended Service Set

B. BSS ?Basic Service Set

C. IBSS ?Independent Basic Service Set

D. ESS ?Extended Service Set

Answer: C

22. What must be used to power the AP via the Ethernet cable?

A. Remote power injector

B. Null modem cable

C. MOD-TAP connector

D. Optional power amplifierAnswer: A

23. To upgrade firmware and Boot ROMs, go to which window in AP Manager?

A. Filtering

B. Hardware

C. Reload

D. Discover


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Answer: C

24. Which of the following is NOT a result of radio interference?

A. Alarm generation

B. Performance degradation

C. Loss of data packets

D. Reduction in coverage distance

Answer: A

25. The RoamAbout adapter/carrier modules:

A. Are a high-speed uplink module for the Access Point

B. Allow a wireless PC Card to be housed inside a desktop PC

C. Are decorative covers to conceal the Access Point

D. Allow you to attach a directional antenna to the PC Card

Answer: B

26. What are two reasons to do a Link Test when planning and installing a Wireless Infrastructure Network?

A. Locate sources of interference

B. Configure network parameters

C. Enable the NetRider application

D. Determine signal strength in various locations

Answer: AD

27. What does the # represent on the AP LEDs?

A. Wireless LAN activity

B. Unable to forward packets

C. Network congestion

D. Wired LAN activity

Answer: D

28. Which of the following is NOT a feature of the RoamAbout Client Utility?

A. Monitor the amount of collisions in the wireless network before enabling the RTS/CTS Protocol

B. Monitor SNR levels and signal and noise levels

C. Monitor the wireless performance of the client RoamAbout 802.11b PC CardD. View and modify the configuration on the RoamAbout 802.11b PC Card

Answer: A

29. Which of the following is necessary when using directional antennas?

A. Visual line-of-sight

B. Antenna height of at least 5 meters

C. AP on either end must be set to auto-transmit


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D. Each AP must be configured for authentication

Answer: A

30. What does the channel represent when configured on the Access Point?

A. A range of frequencies supported on the Access Point

B. The central radio frequency for a wireless device

C. A means of communicating over the air

D. A course or direction for data traffic

Answer: B

31. Ad Hoc Mode is an example of which wireless topology?

A. EESS ?External Extended Service Set

B. BSS ?Basic Service Set

C. IBSS ?Independent Basic Service Set

D. ESS ?Extended Service Set

Answer: C

32. How can you tell whether or not you are in a secure web management session?

A. The web address begins with https://

B. A "Secure Web" banner is displayed

C. A different password is required for access

D. There is no way to tell

Answer: A

33. What file extension is used for RoamAbout Boot ROM image files?

A. .txt

B. .asp

C. .WEP

D. .BIN

Answer: D

34. How do you avoid cross-channel interference when positioning several APs, configured with 802.11b

PC Cards, adjacent to each other?

A. Enable the RTS/CTS ProtocolB. Ensure a 100 meter distance between APs

C. Set the APs to different network names and channels

D. Set the APs to different channels that are at least five channels apart

Answer: D

35. What is a wireless device called when its transmissions cannot be sensed by another wireless device or

devices in the network?


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A. Hidden Client

B. Hidden Station

C. Rogue Client

D. Rogue Station

Answer: B

36. What window in Client Utility provides detailed signal quality information about the client and its test

partner?

A. Card Diagnostics

B. Test History

C. Test Results

D. Log Settings

Answer: C

37. How does Spread Spectrum handle radio signals?

A. Broadcasts the signal at a very narrow frequency

B. Splits a mixture of signals into several, overlapping wideband frequencies

C. Encodes data by varying the amplitude of a constant frequency carrier

D. Takes a narrow-band signal and spreads it over a broad portion of a radio frequency band

Answer: D

38. The Fresnel Zone is:

A. The electrically grounded area in an outdoor antenna installation

B. An area of highly amplified radio waves created by any smooth surface beneath the signal

C. An area of concentrated radio waves near an outdoor antenna

D. An elliptical area around the visual line-of-sight in which radio waves spread out into after they leave an

antenna

Answer: D

39. Which of the following is NOT a reason to perform an indoor site survey?

A. Determine actual coverage areas

B. Determine supported data rates in all locations

C. Verify proper AP placementD. Verify proper placement of desktop PCs

Answer: D

40. Which of the following is NOT a source of radio interference?

A. Microwave ovens

B. Overhead power lines

C. Cable TV


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D. Theft detection devices

Answer: C

41. In which of the following devices is the PC Radio Card NOT used?

A. Laptops

B. Carrier (adapter) modules

C. Omni-directional antenna

D. Wireless Ethernet Adapter

Answer: C

42. IEEE 802.11 stipulates the use of which security measure to make the wireless network at least as

secure as a normal wired LAN?

A. Host key generation

B. WEP Encryption

C. 802.1X Authentication

D. A lockable security box for the Access Point

Answer: B

43. When configuring LAN-to-LAN Endpoint, which of the following do you need?

A. Wired MAC Address of the remote Access Point

B. Wireless MAC Address of the remote Access Point

C. IP Address of the remote Access Point

D. Different channels configured on both Access Points

Answer: B

44. Which of the following does NOT affect the size of a cell?

A. Network utilization

B. Radio frequency noise

C. Transmit speeds

D. Humidity

Answer: D

45. What does the RoamAbout employ, by default, to confirm successful frame delivery?

A. The receiving station sends a MAC level acknowledgementB. Resolution by upper layer protocols (i.e., TCP) at the sending station

C. The sending station sends a source frame to verify delivery

D. There is no method of ensuring successful delivery

Answer: A

46. What does the # represent on the AP LEDs?

A. Wireless LAN activity


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