642-582 Exam

Wireless LAN Wireless LAN for Field Engineers Exam

Exam Number/Code : 642-582
Exam Name : Wireless LAN Wireless LAN for Field Engineers Exam
Questions and Answers : 146 Q&As
Update Time: 2011-09-21
Price: ~~$ 119.00~~ $ 69.00

642-582

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Cisco Wireless LAN 642-582 exam braindumps questions and answers

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Exam : Cisco 642-582
Title : Wireless LAN for Field Engineers Exam

1. What DC voltage is used to power the Access Points through the use of in-line power to the Ethernet port?
A. -5 VDC
B. -9 VDC
C. -12 VDC
D. -48 VDC
Answer: D

2. What two do Wireless Site Surveys determine? (Choose two.)
A. the size of a cell
B. the throughput of a cell
C. the data rate / range relationship in a cell
D. the number of users that can associate to the AP
Answer: AC

3. The Cisco Aironet 1400 Series Bridge has a full duplex 100 Mbps interface using _____.
A. two 75 Ohm "F" style connectors
B. two 50 Ohm "N" style connectors
C. two 75 Ohm "N" style connectors
D. two 50 Ohm "RP-TNC" style connectors
Answer: A

4. The Cisco Aironet 802.11a/b/g Wireless LAN Client Adapter has two LEDs. Which two indicate that the card is working properly (not necessarily associated)? (Choose two.)
A. green LED off; amber LED solid
B. green LED off; amber LED blinking sporadically
C. green LED blinking fast; amber LED blinking sporadically
D. green LED blinking slowly; amber LED blinking sporadically
Answer: CD

5. What does an Infrastructure AP use when registering with the WDS AP?
A. LEAP
B. PEAP
C. EAP-TLS
D. Static WEP
Answer: A

6. An 802.11b radio utilizes how much of the 2.4 GHz ISM band for transmission?
A. 1 MHz
B. 11 MHz
C. 22 MHz
D. 83.5 MHz
Answer: C

7. How many 2.4 GHz RF channels for DSSS are available in Japan?
A. 2
B. 9
C. 11
D. 13
E. 14
Answer: E

8. Which program can be used to push profiles out to multiple Cisco Aironet clients?
A. ACU
B. ADU
C. ACM
D. ACAU
Answer: D

9. What can you do to reduce unnecessary traffic from being transmitted across the RF from an Access Point?
A. enable packet filtering
B. enable MAC address authentication
C. set the buffer size in the Access Point to a lower value
D. reduce the cell size by setting the transmit power to a lower setting
Answer: A

10. Which three values are required to be configured in ACS when adding an AP to the ACS database? (Choose three.)
A. broadcast WEP key
B. RADIUS shared secret
C. AP hostname or IP address
D. session key expiration interval
E. unique name for AP (AAA client) in ACS database
Answer: BCE

11. In Cisco's server-based authentication security scheme, what device is used as the supplicant of the system?
A. client
B. switch
C. Access Point
D. authentication server
Answer: A

12. You have a wireless LAN that you want to set up to stop traffic generated from one client on the RF. You have decided to set up a filter.What do you need to set up on the exhibits?
A. Address Filter page: Allowed; Access Point Radio Advanced page: Allowed
B. Address Filter page: Disallowed; Access Point Radio Advanced page: Allowed
C. Address Filter page: Allowed; Access Point Radio Advanced page: Disallowed
D. Address Filter page: Disallowed; Access Point Radio Advanced page: Disallowed
Answer: B

13. What is the benefit of spread spectrum technology OFDM modulation?
A. Range improves as data rates increases.
B. It makes 802.11g and 802.11a interoperable.
C. It requires less spectral bandwidth than CCK modulation.
D. It has better performance for multipath interference than CCK modulation.
Answer: D

14. Which three settings in a repeater Access Point are necessary to match the root Access Point? (Choose three.)
A. SSID
B. DNS name
C. IP address
D. Radio Channel
E. WEP configuration
F. Role in radio network
Answer: ADE

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