QUESTION 46
A client complains of low data rates on his computer. When you evaluate the situation, you see that the signal strength is -84 dBm and the noise floor is -96 dBm. The client is an 802.11ac client and connects to an 802.11ac AP. Both the client and AP are 2×2:2 devices. What is the likely cause of the low data rate issue?

QUESTION 47
When considering data rates available in HT and VHT PJY devices, in addition to the modulation, coding, channel width, and spatial streams, what impacts the data rate according to the MCS tables?

QUESTION 48
What is appended to the end of each 802.11 data frame after the payload?

QUESTION 49
What terms accurately complete the following sentence?
The IEEE 802.11-2012 standard specifies mandatory support of the ___________ cipher suite for Robust Security Network Associations, and optional use of the ___________ cipher suite, which is designed for use with pre-RSNA hardware.

QUESTION 50
What statement about 802.11 WLAN bridges is true?

QUESTION 51
To ease user complexity, your company has implemented a single SSID for all employees.
However, the network administrator needs a way to control the network resources that can be accessed by each employee based on their department.
What WLAN feature would allow the network administrator to accomplish this task?

QUESTION 52
You are deploying a WLAN with the access points configured for 10 mW of output power on the 2.4 GHz radios and 20 mW of output power on the 5GHz radios. Some semi-directional antennas are also in use. What kind of deployment is described?

QUESTION 53
You are implementing a VHT-capable AP. Which one of the following channels is available in the
802.11-2016 standard, which was not available before the ratification of 802.11ac?

QUESTION 54
What factors does not influence the distance at which an RF signal can be effectively received?

QUESTION 55
An 802.11-based network uses an AP and has several connecting clients. The clients include iPhones, iPads, laptops and one desktop. What WLAN use case is represented?

QUESTION 56
What statement about 802.3, Clause 33 Power over Ethernet is true?

QUESTION 57
You are troubleshooting a problem with interference from a non-802.11 device. Given that the device is not a WLAN device, you cannot use a protocol analyzer and have chosen to use a spectrum analyzer. You want to view the signal from the interfering device over time to see the activity that is generating.
What common spectrum analyzer view should you use for this analysis?

QUESTION 58
In an 802.11n WLAN with a heterogeneous set of associated client devices including 802.11b,
11g, and 11n, what HT protection mode will the BSS use?

QUESTION 59
What features are most often configurable within 802.11 WLAN client utilities? (Choose 2)

QUESTION 60
Which one of the following channels can be used for VHT transmissions?

QUESTION 61
You are being interviewed by ABC Company for employment as a wireless site survey expert.
The interviewing manager asks you what items should be included in a site survey report generated as part of a manual site survey process.
What answer would be accurate?

QUESTION 62
When replacing the antenna of a WLAN device with a similar antenna type that has a higher passive gain, what antenna characteristic will decrease?

QUESTION 63
What best describes WPA2 in relation to 802.11 wireless networks?

QUESTION 64
You are configuring an access point to use channel 128. What important fact should be considered about this channels?

QUESTION 65
An IEEE 802.11 amendment is in the draft state. What impact does this draft amendment have on the 802.11 standard?