Exam N10-008 topic 1 question 65 discussion

Still tryna figure out why you'd want the Guest users to access all resources on the network...

Received Signal Strength Indication (RSSI) is a measurement of the strength of a received radio signal. It is measured as a negative number on a logarithmic scale, which means that the closer to 0 the RSSI is, the better the signal. Clearly, AP 1 and AP 2 has channel/frequency overlap that causes the RF signals to interfere with each other. Thus, the correct answer is A. Answer B is incorrect because by using directional antennas, the RF signal will be directed toward a single direction. Directional antennas are commonly used for long-range fixed wireless, but since you would presumably want to cover an area with enough signal so users can connect, this answer is out of the question. Answer C is incorrect because the SSID of a wireless network allows clients to connect, but it is not directly related to performance issues. Answer D is incorrect because that would increase attenuation and decrease the radiated signal of APs 3 and 4 (causing performance drop in the guest network) without addressing the low received signal strength from APs 1 and 2.

Removing overlap will do literally NOTHING for RSSI and given their value, it's safe to say that the signal is complete crap and most likely the actual reason why they can't connect. Below -80dBm is plain horrible. Overlap sure can cause issues, like degradation, but inability to connect is definitely tied to the extremely poor signal. Secondly, good luck trying not to overlap since there are 4 APs and the guest ones have very strong signals. The only way to get stronger signals is to use directional antennas. At best, you can get 1 of the 2 on channel 1, but it would NOT change the RSSI and you would still have a hard time connecting.

Channel overlap is bad, but not enough RSSI (weak signal) is critically bad. No connection bad. Guest networks have good signal using directional antennas. Corpnetwork should do the same.

You wrong bra

So channell should be 1,6,11,11?

What does inability to connect to WiFi , has to do with Chanel overlap.

May be helpful: overlapping can reduce the Received Signal Strength Indicator (RSSI) of a wireless signal. When multiple wireless networks operate on channels that overlap, the signals can interfere with each other, resulting in a weaker signal strength and reduced RSSI for each network.

A. Reconfigure the channels to reduce overlap should be the NEXT step a wireless technician should take to troubleshoot this issue. Based on the site survey findings, it appears that AP3 and AP4 are operating on channels 5 and 11, respectively, which could be causing interference with AP1 and AP2, both of which are on channels 2 and 1, respectively. In addition, the RSSI for AP3 and AP4 is much stronger than for AP1 and AP2, which suggests that clients may be associating with AP3 and AP4 instead of AP1 and AP2. To address this issue, the wireless technician should reconfigure the channels on the APs to reduce overlap and interference. This may involve changing the channel assignments for AP1 and AP2 to channels with less interference, such as 3 or 4. Additionally, decreasing the transmit power on AP3 and AP4 may also help to reduce interference and encourage clients to connect to AP1 and AP2 instead.

Its gotta be D. There are 3 APs so you WILL have some overlap, theres only 3 non overlapping channels. The AP1 and AP2 wifi have VERY low power -80s. They need directional antenna to get a much better signal, like the Guest networks have.

its soemthing to do with overlapping so I guess its A

AP1 and AP3 makes for some nice overlaps

Looking at the question again I realized I made some errors in making this statement. Only because I think of the correct way channels are set up I didn't notice the 5 lol. Ap1: 2 Ap2: 1 Ap3: 5 AP4: 11 You want separation between the channels otherwise it does cause overlap. 1 2 . . 5 . . . . . 11 This gives you an idea of the overlap. A healthy example: 1 . . . . 6 . . . . 11 To avoid the overlap they need to be separated at least by 5 channels

Adding Channel 2 to access point one causes Channel overlap. Especially given the other access points are 1, 6 and 11

The guest users are on the non-overlapping connection while the corporate are within the overlapping AP.