What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) modulation method in IEEE 802.11 WLANs?
A. OFDM implements BPSK modulation to allow for data rates up to 7 Gbps.
B. OFDM was first introduced in 802.11a and is used by the ERP, HT and VHT PHYs as well.
C. OFDM modulation is used only in 5 GHz 802.11 transmissions.
D. OFDM was used by Frequency Hopping Spread Spectrum (FHSS) PHY devices.
A POE device requires 47 W of power. What POE specification should be used?
A. 802.3at
B. 802.3af
C. 802.3bt
D. 802. 11at
In a mesh BSS (MBSS), according to the 802.11 standard, what device connect the mesh to an Ethernet network?
A. Mesh Gate
B. Mesh Switch
C. Mesh Router
D. Mesh Portal
Which one of the following is not a factor considered when calculating the Link Budget for an outdoor point-to- point WLAN bridge link?
A. Operating frequency
B. MU-MIMO capabilities of the bridges
C. Receive antenna gain
D. Transmit power
When compared with legacy Power Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?
A. Legacy Power Save mode was removed in the 802.11ac amendment.
B. VHT TXOP power save allows the WLAN transceiver to disable more components when in a low power state.
C. VHT TXOP power save uses the partial AID in the preamble to allow clients to identify frames targeted for them.
D. VHT TXOP power save allows stations to enter sleep mode and legacy Power Save does not.
You are deploying a WLAN monitoring solution that utilizes distributed sensor devices. Where should sensors be deployed for best results? Choose the single best answer.
A. In switching closets
B. Every 5 meters and alongside each AP
C. In critical areas where WLAN performance must be high
D. Above the plenum on each floor
Option 43 must be configured to allow access points to locate controllers. In what network service should this option be configured?
A. DNS
B. LDAP
C. DHCP
D. RADIUS
A client STA must choose the best AP for connectivity. As part of the evaluation, it must verify compatible data rates. What can the client STA use to verify that an AP supports the same data rates that it supports?
A. Beacon frames transmitted by the AP
B. Data frames sent between the AP and current clients STAs
C. Authentication frames transmitted by the other client STAs
D. Probe request frames transmitted by other client STAs
What is an advantage of using WPA3-Personal instead of WPA2-Personal as a security solution for 802.11 networks?
A. WPA3-Personal, also called WPA3-SAE, uses an authentication exchange and WPA2- Personal does not
B. WPA3-Personal, also called WPA3-SAE, uses a stronger authentication exchange to better secure the network
C. WPA3-Personal, also called WPA3-SAE, uses AES for encryption and WPA2-Personal does not
D. WPA3-Personal, also called WPA3-SAE, uses a better encryption algorithm than WPA2- Personal
What is the most effective method for testing roaming in relation to 802.11 VoIP handsets?
A. Use a spectrum analyzer to monitor RF activity during a VoIP call.
B. Use a protocol analyzer to capture the traffic generated when a laptop roams.
C. Place a call with the handset and move around the facility to test quality during roaming.
D. Use the built-in roaming monitor built into all VoIP handsets.