CCNA: Cisco Certified Network Associate — Question 648

Which signal frequency appears 60 times per minute?

Answer options

• A. 1 Hz signal
• B. 1 GHz signal
• C. 60 Hz signal
• D. 60 GHz signal

Correct answer: A

Explanation

The correct answer is A. A 1 Hz signal means it completes one cycle per second, resulting in 60 cycles per minute. The other options represent frequencies that are either much higher (1 GHz, 60 GHz) or do not match the condition of 60 cycles per minute (60 Hz is 60 cycles per second).