Which features are incorporated in the802.11-2012 specification and are recommend for robust WLAN client security? (Choose 2)

• A. CCMP cipher suite
• B. CAPWAP with DTLS
• C. MAC address white lists
• D. SSID hiding
• E. 802.1X/EAP
• F. IPSec VPN

As defined in the 802.11 specification, legacy Power Save requires an inefficient back-and- forth frame exchange process. Due to this inefficiency, many WLAN device implementations use a variation of 802.11 Power Save to accomplish the same function.
What non-standard power save behavior is used by most Wi-Fi devices in actual legacy
Power Save implementations?

• A. Client devices ignore the TIM field and automatically send PS-Poll frames after every beacon.
• B. Clients send null data frames to the AP and switch the power management bit from 1 to
  0 toreceive queued data.
• C. The Beacon interval is changed from the default 100 time units to 10 or less time units.
• D. After eachbeacon, the AP attempts to empty its frame buffer by sending Wake-on-
  WLAN frames to wake each dozing client.

As a consultant, you have been hired by ABC Company to implement an outdoor WLAN connection between two buildings that are 2 kilometers (1.24 miles) from each other, with no obstructions in between.
Your first required objective is to create a point-to-point link between the two buildings within the local regulatory body's 800 mW EIRP maximum.
Your second required objective is to provide an industry-standard security solution capable of supporting mutual authentication.
As an optional objective, you must minimize the amount of interference from, and to, nearby WLAN networks.
You install an OFDM wireless bridge at each building, configuring one in root mode and the other in non-root mode. You set each radio for 100 mW (20 dBm) and attach 9 dBi omni- directional antennas to both. You configure the network for WPA2-Enterprise with
PEAPv0/EAP-MSCHAPv2 authentication.
Which statement is true about the solution you chose to deploy?

• A. Your solution meets the second required objective and the optional objective, but not the first required objective.
• B. Your solution meets neither required objective but meets the optional objective.
• C. Your solution meets both required objectives, but does not meet the optional objective.
• D. Your solution meets bothrequired objectives and the optional objective.

Return Loss is the decrease of forward energy in a system when some of thepower is being reflected back toward the transmitter.
What will cause high return loss in an RF transmission system, including the radio, cables, connectors and antenna?

• A. An impedance mismatch between components in the RF system
• B. The use of cables longer than onemeter in the RF system
• C. A Voltage Standing Wave Ratio (VSWR) of 1:1
• D. High output power at the transmitter and use of a low-gain antenna