If an 802.llg Internet connection has connectivity problems, what may be the cause?
If an 802.llg Internet connection has connectivity problems, what may be the cause?
An 802.11g Internet connection operates on the 2.4 GHz band, which is also used by many household devices such as cordless phones and microwaves. These devices can cause interference and disrupt the connectivity of the network. Therefore, a cordless phone is a likely cause of connectivity problems in an 802.11g network.
this should be cordless phones. EMI affects wired connections
D. Electromagnetic interference (EMI)
Answer should be be RFI = Radio Frequency Interference not EMI
Cordless Phones and cellular phones operate through Radio Frequencies which are part of the electromagnetic spectrum (EMS), so electromagnetic interference or EMI is correct. 802.11g operates on the 2.4 GHz band of the EMS, which is the same band you will find microwaves and Bluetooth.
I got this exact question on my exam yesterday but my options were cordless phone, cellular phone, computer monitor, and fluorescent lights. So which would be the best answer from there?
I would have guessed cell phones for your answer. if they did not give EMI. Cell phone normally operate at 2.1 GHz UHF Frequency. BUT cordless can operate at the same Freq as well. Cordless phones have a wide band of frequency ranges though. so it is a little bit of a trick question.
I would say cordless phone. In the early days of 802.11b/g it was very common for household devices (e.g. cordless phones and microwaves) to interfere with wireless connections since they were all contending for space in the 2.4Ghz band. The workaround was to install an 802.11a AP & NIC(s) so you could connect using the 5Ghz band, but the range was more limited.