Is the period adjustable?

• A. Yes
• B. No
• C. Depends
• D. Not specified

Answer: (B)

Timing is set by the device’s built-in timing reference and is not exposed to user control. When a period is determined by a fixed oscillator or predefined timing constants, there isn’t a user-accessible method to adjust it, so the period remains constant. To change it, you’d have to redesign the hardware or firmware, which isn’t indicated in this scenario. That’s why the period isn’t adjustable. If a setting or mode could alter the timing, or if the specification didn’t provide enough detail, then other choices might fit, but with a fixed internal timing reference, the correct stance is that it cannot be adjusted.