SN74LVT125: Behavior with Hi-z input at startup

Part Number: SN74LVT125
Other Parts Discussed in Thread: SN74LVTH125

Hi support team.

I received the following some questions from my customer.

1. Does this mean that pull-down / pull-up resistors are not recommended for both input (A) and output (Y)?
2. If I use a pull-up / pull-down resistor for input or output, will it have a bad effect?
3. If I start the power supply with the inputs and outputs floating, will the outputs be kept at L?
4. Is it correct to understand that if the input source becomes Hi-z when the power is turned on, a pull-up resistor is required for the input when you want to obtain H for the output?

Could you tell me regarding above questions? 

Best regards,