As part of a wireless site survey in a hospital, an engineer needs to identify potential Layer 1 interferers. In which two areas is the engineer most likely to find sources of 2.4 GHz and 5 GHz RF noise? (Choose two.)
As part of a wireless site survey in a hospital, an engineer needs to identify potential Layer 1 interferers. In which two areas is the engineer most likely to find sources of 2.4 GHz and 5 GHz RF noise? (Choose two.)
In a hospital setting, two likely sources of 2.4 GHz and 5 GHz RF noise are kitchens and patient rooms. Kitchens often contain microwave ovens, which operate around 2.4 GHz and can cause significant interference with wireless networks. In patient rooms, various personal electronic devices such as mobile phones, tablets, and laptops frequently use the 2.4 GHz and 5 GHz frequencies for Wi-Fi and Bluetooth communication, contributing to RF noise in those bands. Other medical equipment like MRI machines, Gamma Knife radiation treatment, and X-ray radiography operate at frequencies outside the 2.4 GHz and 5 GHz range, making them less likely to be sources of interference.
This answer is right, even though I wasn't sure at first. MRI scans emit at a frequency of 1MHz-300MHz, which is below the frequency of Wi-Fi (2.4GHz and 5GHz). Gamma rays (Exahertz) and X-rays (Petahertz) are happening at frequencies much higher than RF as well. Kitchens can be source of 2.4GHz interference with microwave ovens. I have no clue what can cause RF noise in patient rooms, but by elimination, it works.
Correct People have mobile devices in patient rooms such as tablets and cellphones which adds to the rf noise on 2.4Ghz and 5Ghz.
B,E is rite answer
Answer BE. non of them are working in 2.4 or 5 GHz
the question asks for "potential Layer 1 interferers". patients can have bluetooth devices such as headphones or just mobile phones, tablets, laptops with bluetooth switched on. :)
I'd say you also probably have fluorescent lights in the patients room and kitchen too.
Correct, kitchen contains microwave ovens