Certified Wireless Network Administrator 試験
Question No : 1
Which antenna types are commonly used by indoor Wi-Fi devices in a MIMO diversity implementation? (Choose 2)
Question No : 2
What parameter of the client driver should be configured on a Windows computer to optimize moving from one AP to another within the ESS?
Question No : 3
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?
Question No : 4
What problem may exist for a multiple channel architecture (MCA) WLAN when its APs are all operating at full power (typically 100mW)?
Question No : 5
Two co-located 802.11b/g/n APs can interfere with one another and cause contention and collisions, even when the two APs are operating on non-overlapping channels (e.g. 1 & 6).
What deployment flaw could cause this problem?
Question No : 6
What cause of hidden nodes within a BSS would be more likely lead to an increase in collisions and retries?
Question No : 7
What statement about the SSID is true?
Question No : 8
When a client moves to a new BSS within an ESS, what step is a part of the 802.11 reassociation process?
Question No : 9
Which one of the following channels can be used for VHT transmissions?
Question No : 10
Which one of the following frequency ranges is not specified for use by IEEE 802.11 radios as of 802.11-2012?
Question No : 11
What feature was introduced in the 802.11h amendment in order to uphold regulatory requirements for 5 GHz operations.
Question No : 12
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?
Question No : 13
What answer correctly completes the following sentence?
____________ and physical carrier sense functions are used to determine if the wireless medium is busy.
Question No : 14
What standard is referenced into the 802.11-2012 specification and is recommend for robust WLAN client security?
Question No : 15
What is a channel mode specified by the 802.11n (High Throughput) PHY?