What word describes the bending of an RF signal as it passes through a medium of a varying density from that of free space?

What WLAN system feature is required to produce a scenario with the following configuration on a single access point? (Choose 2)

1. SSID = Guest / BSSID = AA:AA:AA:AA:AA:AA /

VLAN = 22 / Subnet = 192.168.22.0 / RF Channel = 6

2. SSID = Corporate / BSSID = BB:BB:BB:BB:BB:BB /

VLAN = 33 / Subnet = 192.168.33.0 / RF Channel = 6 / User Type A

3. SSID = Corporate / BSSID = BB:BB:BB:BB:BB:BB /

VLAN = 44 / Subnet = 192.168.44.0 / RF Channel = 6 / User Type B

In an 802.11n 2.4 GHz BSS, what prevents each station from using the full network bandwidth (e.g. 130 Mbps) for user data throughput when multiple clients are actively exchanging data with the AP? (Choose 2)

When a client station sends a broadcast probe request frame with a wildcard SSID, how do APs respond?

Which of the following frequency ranges are specified for use by IEEE 802.11 radios? (Choose all that apply.)

ABC Company has thousands of Wi-Fi users accessing their network on a daily basis. Their WLAN consists of 700 access points, 6 WLAN controllers, and a wireless network management system.

What network functions are performed by the enterprise-class WNMS? (Choose 3)

ABC Company has a 2.4 and 5 GHz WLAN deployment. DFS functionality is enabled as required by the regulatory domain and APs use DFS channels as long as radar is not detected. Band steering is also enabled to encourage dual-band clients to use frequency bands with more capacity.

Your performance analysis shows that many dual-band VoWiFi client devices will move back and forth between 2.4 and 5 GHz as the users roam throughout the building. All APs have 2.4 and 5 GHz radios enabled with transmit power adjusted to accommodate relatively similar cell sizes.

This “band hopping” behavior is viewed by network staff to be undesirable. What is the most likely cause of the unpredictable client band selection behavior?

ABC Company is planning a point-to-multipoint outdoor bridge deployment with standalone (autonomous) 802.11 bridge units. 802.1X/EAP will be used for bridge authentication. A Linux-based RADIUS server will be used for authentication. What device in the bridge implementation acts as the 802.1X Authenticator?

What term correctly completes the following sentence?

802.11a/b/g used a mandatory 800ns guard interval. 802.11n introduced an optional short 400ns guard interval. Guard intervals (GI) are necessary in OFDM to reduce the likelihood of interference between two consecutive ____________.

The OSI model is a 7-layer model for understanding the functions of a communication system. What OSI sublayers are specifically addressed by the IEEE 802.11-2012 standard? (Choose 2)

In a Wi-Fi client configuration utility, what feature is most likely to be user configurable?

You are selecting antennas for a WLAN operating in the 5 GHz frequency band. What specifications should be evaluated for an antenna before it is implemented in this WLAN system? (Choose 3)

ABC Company has just purchased a 6 dBi patch antenna. After performing some tests with the 6 dBi antenna, they have concluded that more antenna gain is needed to cover their outdoor courtyard. When choosing an antenna with higher gain, what other antenna characteristic will also always change?

In addition to throughput enhancements, what other improvements does a dual-band 802.11ac AP provide when compared with 802.11a/g APs? (Choose 2)

Lynne runs a small hotel, and as a value added service for her customers she has implemented a Wi-Fi hot-spot. Lynne has read news articles about how hackers wait at hot-spots trying to take advantage of unsuspecting users. She wants to avoid this problem at her hotel.

What is an efficient and practical step that Lynne can take to decrease the likelihood of active attacks on her customers' wireless computers?