Which is a sign of interference and jamming?

• A. No response to transmission
• B. Traffic on the net
• C. Clear reception
• D. Higher data rate

Answer: (A)

Interference and jamming show up as a channel that cannot be understood or used, so the signal never gets decoded and you don’t receive a reply. When a jam is active, the receiver can’t make sense of the transmission, and the most telling symptom is that you get no response to what you sent. The other signs described—traffic on the net simply means there’s activity, not a problem; clear reception means the signal is being received cleanly; and a higher data rate implies a better, not a degraded, link—don’t indicate interference or jamming.