Which of the following is true about RFI? answer RFI is caused by motors, machinery, and fluorescent lights. Unshielded twisted-pair cables and fiber optic cables can protect RFI signals. RFI is caused by nearby devices, such as cordless phones or microwave ovens. You can reduce RFI by using a wireless networking standard that operates in the 2.4 GHz range.
Question
Which of the following is true about RFI?
answer
RFI is caused by motors, machinery, and fluorescent lights.
Unshielded twisted-pair cables and fiber optic cables can protect RFI signals.
RFI is caused by nearby devices, such as cordless phones or microwave ovens.
You can reduce RFI by using a wireless networking standard that operates in the 2.4 GHz range.
Solution
The following statements are true about RFI (Radio Frequency Interference):
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RFI is caused by motors, machinery, and fluorescent lights: This is true. These devices can emit electromagnetic radiation in the radio frequency range, which can interfere with other electronic devices.
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Unshielded twisted-pair cables and fiber optic cables can protect RFI signals: This is partially true. Unshielded twisted-pair cables are not designed to protect against RFI. However, fiber optic cables, which transmit data as light rather than electricity, are immune to RFI.
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RFI is caused by nearby devices, such as cordless phones or microwave ovens: This is true. These devices can emit radio frequency signals that can interfere with other electronic devices.
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You can reduce RFI by using a wireless networking standard that operates in the 2.4 GHz range: This is false. The 2.4 GHz range is actually more susceptible to interference from devices such as microwaves and cordless phones. Using a wireless networking standard that operates in the 5 GHz range can help reduce RFI.
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