Which three methods might be used to change kernel parameters, thereby modifying the
values for running system?
A.
Using the echo command to write values to specific files in the /proc/sys directory
B.
Adding to or modifying parameters in /etc/sysct1.conf and issuing the sysct1 -p command
C.
Using the echo command to write values to specific files in the /sys directory
D.
Issuing the sysct1 -w command to write values to specific files in the /sys directory
E.
Issuing the sysct1 -w command to write values to specific files in the /proc/sys directory