CISCO Chapter 4 Quiz
An IEEE 802.11n network has been configured for mixed mode and has clients that are using 802.11n and 802.11g radios on the network. The 802.11n clients are complaining of slower than normal speeds. What is the problem? A. This is the normal behavior of a mixed-mode network. B. The access point is failing. C. The authentication is not allowing roaming. D. Roaming between access points is disabled.
A
Match the wireless technologies to the correct descriptions. (Not all options are used.) <uses device pairing to communicate over distances of up to 100 meters> A. Bluetooth B. Wi-Fi C. WiMAX D. Satellite Broadband
A
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? A. accidental interference B. improperly configured devices C. interception of data D. rogue access points
A
If an administrator is troubleshooting a WLAN using a bottom up approach, which action would be taken first? A. Update the firmware on the AP. B. Make sure all devices are powered on. C. Ping the AP. D. Verify that the GUI interface is accessible from a client.
B
Match the wireless technologies to the correct descriptions. (Not all options are used.) <provides network access within a home with connectivity distances of up to 300 meters> A. Bluetooth B. Wi-Fi C. WiMAX D. Satellite Broadband
B
What Wi-Fi management frame is regularly broadcast by APs to announce their presence? A. probe B. beacon C. association D. authentication
B
What is a characteristic of a Yagi antenna that is used by Cisco Aironet Access Points? A. It provides 360-degree coverage. B. It can be used for long-distance Wi-Fi networking. C. It is also referred to as a "rubber duck" design. D. It has the same characteristics as an omnidirectional Wi-Fi antenna.
B
Which combination of WLAN authentication and encryption is recommended as a best practice for home users? A. WEP and TKIP B. WPA2 and AES C. EAP and AES D. WPA and PSK E. WEP and RC4
B
Which wireless RF band do IEEE 802.11b/g devices use? A. 900 MHz B. 2.4 GHz C. 5 GHz D. 60 GHz
B
Which two recommendations should an administrator follow when planning the location of multiple APs? (Choose two.) A. Position APs horizontally near the ceiling in the center of each coverage area, if possible. B. Position APs in locations where users are expected to be. C. An ESS should have 20 to 25 percent overlap between BSAs in an ESS. D. Overlap channels to provide roaming capability. E. Always consult the specifications for the AP when planning for coverage areas.
B & E
Match the wireless technologies to the correct descriptions. (Not all options are used.) <alternative to cable and DSL the can communicate over distance up to 50 km> A. Bluetooth B. Wi-Fi C. WiMAX D. Satellite Broadband
C
What type of frames are used for advertising, authenticating, and associating with a wireless AP? A. data B. control C. management D. acknowledgment
C
Which statement describes an ESS? A. An ESS consists of two or more BSSs that are interconnected wirelessly by a DS. B. Bluetooth is an example of ESS infrastructure mode. C. It involves several BSSs that are joined through a common distribution system. D. An ESS is a connection of a BSS to an ad hoc wireless network.
C
Match the wireless technologies to the correct descriptions. (Not all options are used.) <useful in remote areas, but requires a clear line of sight> A. Bluetooth B. Wi-Fi C. WiMAX D. Satellite Broadband
D
Fill in the blank. Known as "WiGig", the IEEE 802.11 __________ standard provides average speeds of up to 7 Gb/s, but will switch to a lower GHz band when roaming is employed.
ad
Fill in the blank. A network administrator discovers a rogue AP in the network. The rogue AP is capturing traffic and then forwarding it on to the legitimate AP. This type of attack is known as a ____________ attack.
man in the middle