What problems may occur when there are hidden nodes in the BSS?
A. Increase in downlink (transmitted by AP) frame retries.
B. High retransmission count for a subset of client stations.
C. Use of frame fragmentation with fragment bursts.
D. Excessive use of null data frames.
E. Duration values vary widely in each data frame.
What statements about the SSID are true? (Choose 2)
A. The SSID is a security session identifierused in RSNs.
B. The SSID must be included in an association request frame.
C. The SSID is an alphanumeric value assigned to device manufacturers by the IEEE.
D. The SSID is a pseudo-random number assigned to each client by an AP.
E. The SSID is an alphanumeric value with a maximum length of 32 octets.
F. When configuring a new network, creating an SSID is optional.
What statements about the beamwidth of an RF antenna are true? (Choose 2)
A. Thelower the gain of an antenna, the moreap-1 is narrow one or both beamwidths become.
B. The beamwidth patterns on an antenna polar chart indicate the point at which the RF signal stops propagating.
C. Horizontal and vertical beamwidth are calculated at thepoints in which the main lobe decreases power by 3 dB.
D. Horizontal beamwidth is displayed (in degrees) on the antenna's Azimuth Chart.
A WLAN transmitter that emits a 200 mW signal is connected to a cable with 3 dB loss.
If the cable is connected to an antenna with 10 dBi gain, what is the EIRP at the antenna element?
A. 10 dBm
B. 13 dBm
C. 20 dBm
D. 26 dBm
E. 30 dBm
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 Ethernetcable.
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.
What factors will have the most significant impact on the amount of wireless bandwidth available to each station within a BSS?
A. The number ofclient stations associated to the BSS
B. The power management settings in the access point's beacons
C. The presence of co-located (10m away) access points on non-overlapping channels
D. The layer 3 protocol used by each station to transmit data over the wireless link
What is an advantage of using WPA2-Personal instead of WEP-128 as a security solution for 802.11 networks?
A. WPA2-Personal uses 802.1X/EAP for authentication, and WEP-128 uses preshared keys.
B. WPA2-Personal is basedon IEEE 802.11 industry standards, but WEP is not.
C. WPA2-Personal uses CCMP for encryption, and WEP-128 uses TKIP for encryption.
D. WPA2-Personal usesdynamic encryption keys, and WEP-128 uses static keys.
When planning an access point deployment that utilizes Power over Ethernet (PoE) switches at the network edge, what design decision could adversely affect the operation of 802.3-2012, Clause 33 APs?
A. All ports on theEthernet switch will be supporting Class 3 PoE powered devices.
B. Some APs are connected to a PoE switch and are also receiving power from an AC outlet.
C. The Ethernet switch uplink ports are not connected to an 802.3-2012, Clause 33- compliant core or distribution Ethernet switch.
D. A gigabit Ethernet switch port supporting an 802.11a/g AP auto-negotiates to 100 Mbps.
What terms accurately complete the following sentence?
The IEEE 802.11-2012 standard specifies mandatory support of the ___________ cipher suite for Robust Security Network Associations, and optional use of the ___________ cipher suite, which is designed for use with pre-RSNA hardware.
A. CCMP, TKIP
B. 802.1X/EAP, WEP
C. TLS, SSL
D. RC5, RC4
What features are most often configurable within 802.11 WLAN client utilities? (Choose 2)
A. Frame generator utility
B. Power management
C. Co-channel interference threshold
D. AESkey and block size
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