单项选择题

ceph块存储的特性不包括（）

A.精简配置
B.快照
C.克隆
D.跨平台性

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单项选择题

A.nova start〈uuid〉
B.nova stop〈uuid〉
C.systemctl restart openstack-nova-compute
D.systemctl status openstack-nova-compute

单项选择题

A.nova service-list
B.nova agent-list
C.nova services-list
D.nova agents-list

单项选择题

A.neutron security-group-list
B.neutron security-group-rule-list
C.nova security-group-list
D.nova security-group-rule-list