N10-005 · Question #719
A technician is attempting to set up a new laptop for a user. The user's old laptop connects to the corporate wireless network "CompanyWiFi" automatically. However, when the technician looks for the…
The correct answer is D. SSID broadcasting is disabled on the WAP. When a wireless network does not appear in the available networks list, the most common cause is that SSID broadcast has been disabled on the access point.
Question
A technician is attempting to set up a new laptop for a user. The user's old laptop connects to the corporate wireless network "CompanyWiFi" automatically. However, when the technician looks for the "CompanyWiFi" network on the new laptop, he does not find it in the list of available networks. Both laptops have 802.11g wireless network adapters and are sitting next to each other on the user's desk. Which of the following would MOST likely be the reason that the new laptop cannot see the "CompanyWiFi" network?
Options
- ALoss of signal strength
- BIncorrect WEP key was input
- CRFID interference from other electronic devices
- DSSID broadcasting is disabled on the WAP
How the community answered
(21 responses)- A14% (3)
- B5% (1)
- C10% (2)
- D71% (15)
Why each option
When a wireless network does not appear in the available networks list, the most common cause is that SSID broadcast has been disabled on the access point.
Loss of signal strength is not the cause because both laptops are sitting next to each other and share identical 802.11g adapters, so the new laptop would experience the same signal as the old one.
An incorrect WEP key would prevent authentication and association after the network is found, but would not prevent the network from appearing in the available networks list.
RFID operates on different frequencies and does not interfere with 802.11g Wi-Fi in a way that would selectively hide a single network from one device while another identical device connects normally.
When SSID broadcasting is disabled on a wireless access point, the network name is not included in beacon frames, so client devices cannot discover it passively and it will not appear in the list of available networks. The old laptop connects automatically because it already has the network profile saved with the SSID configured manually, whereas the new laptop has no saved profile and cannot discover the hidden SSID.
Concept tested: Wireless SSID broadcast disable and hidden networks
Source: https://learn.microsoft.com/en-us/windows-server/networking/technologies/nps/nps-top
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