Chapter 3 ccna 4

Which security mode is the least secure choice when a home wireless router is configured?

WEP

Which organization certifies vendors for adherence to the 802.11 standards to improve interoperability of 802.11 products?

Wi-Fi Alliance

For which discovery mode will an AP generate the most traffic on a WLAN?

passive mode

Which statement defines the control frame operation between two stations?

After receiving a data frame, the receiving station will send an ACK frame to the sending station if no errors are found.

Which type of wireless topology is created when two or more Basic Service Sets are interconnected by Ethernet?

ESS

What type of wireless antenna is best suited for providing coverage in large open spaces, such as hallways or large conference rooms?

omnidirectional

If three 802.11b access points need to be deployed in close proximity, which three frequency channels should be used?

1, 6, 11

Which three Wi-Fi standards operate in the 2.4GHz range of frequencies? (Choose three.)

802.11b 802.11g 802.11n

What is an advantage of SSID cloaking?

Clients will have to manually identify the SSID to connect to the network.

A administrator wishes to extend the range of the existing IEEE 802.11n network without changing the AP. What can the administrator do to accomplish this?

Deploy a Wi-Fi Range Extender.

Which feature of 802.11n wireless access points allows them to transmit data at faster speeds than previous versions of 802.11 Wi-Fi standards did?

MIMO

What is a difference between Cisco APs that operate in a home environment and Cisco APs that operate in a corporate environment?

Some corporate AP models can operate in either autonomous mode or controller-based mode.

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 two roles are typically performed by a wireless router that is used in a home or small business? (Choose two.)

access point Ethernet switch

During which stage of establishing connectivity between a WLAN client and an AP does the client learn the MAC address of the AP?

association

Which type of management frame may regularly be broadcast by an AP?

beacon

A student uses a laptop to upload an assignment to a file server. Which wireless frame type did the laptop send to locate and associate with the campus access point?

management frame

An employee connects wirelessly to the company network using a cell phone. The employee then configures the cell phone to act as a wireless access point that will allow new employees to connect to the company network. Which type of security threat best describes this situation?

rogue access point