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When you pick up your wireless phone, your computer drops network connectivity. What could be the cause of the problem?
A. EMI
B. RFI
C. network adapter failure
D. cable failure
Correct Answer: B
Explanation/Reference:
Section Reference: Identifying and Working with Twisted-Pair Cable
Explanation: Wireless adapters/networks use 2.4 or 5.0 GHz, which is the same frequency that wireless phones use. Therefore, if both operate at the same time, you have radio frequency interference (RFI).
Ans B. RFI