CISCO WLAN concepts ch 12
A network administrator is required to upgrade wireless access to end users in a building. To provide data rates up to 1.3 Gb/s and still be backward compatible with older devices, which wireless standard should be implemented?
802.11ac
What two IEEE 802.11 wireless standards operate only in the 5 GHz range?
802.11ac 802.11a
What is an advantage of SSID cloaking?
Clients will have to manually identify the SSID to connect to the network
What type of wireless antenna is best suited for providing coverage in large open spaces, such as hallways or large conference rooms?
Omnidirectional
Which type of wireless network is based on the 802.11 standard and a 2.4-GHz or 5-GHz radio frequency?
Wi-Fi 4
Which type of wireless network uses transmitters to cover a medium-sized network, usually up to 300 feet (91.4 meters)?
Wireless LANs (WLAN)
The company handbook states that employees cannot have microwave ovens in their offices. Instead, all employees must use the microwave ovens located in the employee cafeteria. What wireless security risk is the company trying to avoid?
accidental interference
What are the two methods that are used by a wireless NIC to discover an AP?
receiving a broadcast beacon frame transmitting a probe request
Which type of wireless network is suitable for use in a home or office?
wireless local-area network
Which type of wireless network often makes use of devices mounted on buildings?
wireless metropolitan-area network
Which type of wireless network uses transmitters to provide coverage over an extensive geographic area?
wireless wide-area network
What is the function provided by CAPWAP protocol in a corporate wireless network?
CAPWAP provides the encapsulation and forwarding of wireless user traffic between an access point and a wireless LAN controller
A company has recently implemented an 802.11n wireless network. Some users are complaining that the wireless network is too slow. Which solution is the best method to enhance the performance of the wireless network?
Split the traffic between the 2.4 GHz and 5 GHz frequency bands
Which type of management frame may regularly be broadcast by an AP?
beacon
Which type of wireless network is suitable for national and global communications?
wireless wide-area network
While attending a conference, participants are using laptops for network connectivity. When a guest speaker attempts to connect to the network, the laptop fails to display any available wireless networks. The access point must be operating in which mode?
active
What is a wireless security mode that requires a RADIUS server to authenticate wireless users?
enterprise
Which wireless network topology would be used by network engineers to provide a wireless network for an entire college building?
infrastructure
A technician is configuring the channel on a wireless router to either 1, 6, or 11. What is the purpose of adjusting the channel?
to avoid interference from nearby wireless devices
Which type of wireless network is suitable for providing wireless access to a city or district?
wireless metropolitan-area network
Which type of wireless network uses transmitters to provide wireless service over a large urban region?
wireless metropolitan-area network
Which type of wireless network commonly uses Bluetooth or ZigBee devices?
wireless personal-area network
Which type of wireless network uses low powered transmitters for a short-range network, usually 20 to 30 ft. (6 to 9 meters)?
wireless personal-area network
