以下哪2个服务，是Nova 的控制台子服务？ A: Nova Compute B: Nova Consoleauth C: Nova Conductor D: Nova Vncproxy

在Nova中，要实现基本的虚拟机管理功能，至少需要启动哪些子服务？ A: Nova API B: Nova Conductor C: Nova Scheduler D: Nova Compute

Openstack中nova哪一个服务负责虚拟机生命周期的管理（) A: A.nova-api B: B.nova-compte C: C.nova-conductor D: D.nova-schedule

以下nova命令，可以查询网络列表的是 A: neutron network-list B: neutron net-list C: nova net-list D: nova network-list

On the ideal conductor surface, the relationship between the electric field lines and the conductor surface is A: the electric field lines is always pertendicular to the conductor surface. B: the electric field lines is always parallel to the conductor surface. C: there is no electri field lines exsited. D: unable to determine the relationship.

如果nova-compute服务无法启动，需要检查以下哪个文件？ A: /var/log/nova/nova-compute.log B: /var/log/nova/nova-compute. service C: /var/log/nova/nova-controller.log D: /var/log/nova/nova-controller. service

Which of the following statements about a conductor in the static case is not true导体在静电平衡下表述不正确的是 A: The conductor must be at the same electric potential B: The surface of the conductor is an equi-potential surface等势面 C: There can be an electric field within the conductor导体内 D: There can be no net charge within the conductor体内无净电荷

The magnentic field is generated by A: voltage applied to the conductor B: current through the conductor C: charge shifts D: permanent magnet

以下关于Nova描述正确的包括？（） A: Nova是OpenStack中事实上最核心的项目 B: Nova负责虚拟机生命周期管理 C: Nova管理下的资源主要是虚拟机.容器，通过lronic管理物理机 D: Nova负责全面的系统状态监控

When these electromagnetic waves escape from the conductor into space, they are said to be radiated by the conductor, hence the name radio waves.