WLAN Concepts

Which frequency bands do WLANs primarily operate in?

• 900 MHz and 1.8 GHz

• 2.4 GHz and 5 GHz

• 3.1 GHz and 7 GHz

• 1.2 GHz and 3.6 GHz

What IEEE standard defines WLAN technologies?

• 802.15

• 802.16

• 802.3

• 802.11

Which organization is responsible for promoting WLAN interoperability through the Wi-Fi certification program?

• IEEE

• ITU-R

• Wi-Fi Alliance

• IANA

What is the primary function of a wireless NIC in a device?

• Routing traffic between networks

• Discovering and connecting to an access point (AP)

• Assigning IP addresses to devices

• Encrypting network traffic

Which IEEE protocol provides centralized control for managing multiple APs in WLANs?

• DTLS

• CAPWAP

• WPA2

• OFDM

A small office wants to set up a WLAN network where APs are managed from a remote WLC. Which solution is most appropriate?

• Ad Hoc Mode

• CAPWAP

• FlexConnect

• OFDM

A network administrator is asked to improve the range of an AP in a specific direction to cover a long hallway. Which type of antenna should be used?

• Omnidirectional

• Directional

• MIMO

• Yagi

An employee complains about connecting to a wireless network and accidentally connecting to an AP with the same SSID in the area, leading to security concerns. What attack is likely occurring?

• Rogue AP

• Evil Twin Attack

• WPA2 Attack

• WPS Attack

A technician needs to ensure an office's wireless devices cannot connect to each other, enhancing security. What mode would be suitable?

• Ad Hoc Mode

• Infrastructure Mode

• Extended Service Set (ESS)

• CSMA/CA

A network administrator has noticed many unauthorized APs within range of the corporate network. What is an appropriate mitigation step?

• Enable WPA on all APs

• Configure the WLC with rogue AP policies

• Enable MAC address filtering

• Use SSID cloaking