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NO.1 In WLAN security, which authentication methods always create Layer 2 dynamic encryption
keys? (Choose 2)
A. HTTPS Captive Portal
B. WEP
C. WPA2-PSK
D. EAP-TLS
E. Shared Key
F. TKIP
Answer: C,D

NO.2 What component of the 802.11 standard allows stations to reserve access to the RF medium for
a specified period of time?
A. Short guard intervals
B. DTIM Interval
C. Listen Interval
D. Probe Request frames
E. RTS or CTS frames
Answer: E

NO.3 As a station moves away from the access point to which it is associated, it changes its data rate
from 600 Mbps to 540 Mbps and then to 450 Mbps.
What IEEE 802.11 term is used to describe this functionality?
A. Dynamic Rate Switching
B. Multirate Control
C. Modulation and Coding Selection
D. Rate Set Selectivity
E. Adaptive Rate Management
Answer: A

NO.4 What answers correctly complete the following sentence?
____________ and ____________ carrier sense functions are used to determine if the wireless
medium is busy. (Choose 2)
A. Backoff
B. Pseudo-random
C. Virtual
D. Active
E. Physical
F. Interframe
G. Vector
Answer: C,E

NO.5 What statement about 802.3-2012, Clause 33 Power over Ethernet is true?
A. Up to 30 watts of power may be provided through an Ethernet cable.
B. By using CAT3 cabling, you can increase the maximum draw available to the PD.
C. When using CAT5 cabling, you decrease the maximum draw available to the PD.
D. Only endpoint PSEs are supported.
E. Only midspan PSEs are supported.
Answer: A

NO.6 Prior to association, what parameter can 802.11 client devices measure and use to select the
optimal access point for association?
A. Signal strength of access point beacons received
B. Proximity to potential access points
C. Retry rate of probe request and response frames
D. Average round trip time to reach the Internet DNS server
E. Average round trip time to reach the IP router
Answer: A

NO.7 In a single channel architecture (SCA) WLAN system, 802.11n (HT) APs should not share an SSID
with 802.11g (ERP) APs.
What is the reason for this recommendation?
A. Client stations would see two different sets of AP capabilities as they roam between APs with the
same BSSID.
B. The added range of 802.11n APs would cause additional co-channel interference.
C. The additional beacon material in 802.11n beacons would confuse 802.11b/g client stations.
D. Beacons from 802.11n APs use 40 MHz channels, while beacons from 802.11g APs use 20 MHz
channels.
Answer: A

NO.8 What statements accurately describe the RF cables and connectors that are used in an 802.11
WLAN system? (Choose 3)
A. RF cables have upper and lower frequency range specifications.
B. 75 and 125 ohms are the typical impedances of 802.11 WLAN connectors.
C. Two RF connectors of the same type (e.g. SMA), manufactured by different companies, may vary in
specifications.
D. Every RF connector causes insertion loss.
E. Large diameter RF cables cause greater loss than small diameter cables.
Answer: A,C,D