单选题Which of the following commands would a system administrator run tovalidate /etc/tunables/nextboot after manually editing（）A ksh -n nextbootB tunsave -a -f nextbootC tuncheck -r -f nextbootD tunsave nextboot
题目
单选题
Which of the following commands would a system administrator run tovalidate /etc/tunables/nextboot after manually editing（）
A
ksh -n nextboot
B
tunsave -a -f nextboot
C
tuncheck -r -f nextboot
D
tunsave nextboot