The UAC is on by default. So, you don't need to turn it on unless someone else turned it off.
The UAC has four modes.
The lowest mode is the off position. If the UAC is off, no UAC prompt will pop up when doing administrative tasks.
Explanation:
A routine or subroutine, also referred to as a function procedure and sub program is code called and executed anywhere in a program. FOr example a routine may be used to save a file or display the time.
Answer:
/28 -- 16 Subnets -- 14 Hosts/Subnet
14*16 = 224 hosts
Explanation:
see https://www.aelius.com/njh/subnet_sheet.html