Multiple choice technology mainframe Z/OS supports 32-bit long addresses 64-bit long addresses 8-bit long addresses 16-bit long addresses Reveal answer Fill a bubble to check yourself B Correct answer Explanation z/OS is a 64-bit operating system that uses 64-bit addresses to access massive amounts of virtual storage, supporting modern enterprise computing requirements. Legacy 16-bit and 32-bit addressing are obsolete for z/OS architecture.