E6C07:What best describes a pull-up or pull-down resistor?
Direct answer summary (2024-2028 NCVEC pool)
The official correct answer for E6C07 is A resistor connected to the positive or negative supply used to establish a voltage when an input or output is an open circuit.
The key fact is A resistor connected to the positive or negative supply used to establish a voltage when an input or output is an open circuit. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.