在CentOS 7中, 查看防火墙服务运行状态的命令是
A. system ctl start firewall d.service
B. system ctl stop firewall d.service
C. system ctl restart firewall d.service
D. system ctl status firewall d.service
glance的基本操作围绕image进行, 从远程URL上传image的命令为
A.
B. glance image-create--name="Image name"--is-public=True--disk-format=q cow 2-container-format=bare--file/home/...
C. B.
D. glance image-create--name="mage name"-i-public=True--disk-format=q cow 2-container-format=bare E. C.
F. glance image-create--name="SP 2-64"--is-public=True--dik-format=q cow 2--container-format=bare-copy-from http://...
G. D.
H. glance image-show
重启NTP服务的命令为
A. /etc/in it.d/ntpd restart
B. /etc/in it.d/ntp restart
C. /usr/in it.d/ntpd restart
D. /usr/in it.d/ntp restart
在KVM创建虚拟机的过程中客户端可以通过____进入图形化界面安装
A. VNC-viewer
B. KVM-viewer
C. VNC-view
D. KVM-view