Uploading an Arduino UNO *.hex file to the chip/board

I learned today that the Arduino software can output a *.hex file, as well as the usual *.ino file.
>"Sketch" >"Export Compiled Binary"

Can the hex file be uploaded to a chip without buying a separate programmer, just using the Arduino software?
If so, under >"Tools", >"Programmer", do I select "ArduinoISP" or "Arduino as ISP"? (I'm a bit confused on the difference between these options.)

Will it run without pre-loading the bootloader? (I'm guessing the answer is "Yes", but have to ask.)...

Uploading an Arduino UNO *.hex file to the chip/board