What are the common signs of asthma patients?
Asthma patients often cough a lot.
B. They may also make a wheezing.
C. Some patients feel tightness or pain in the chest.
D. Severe asthma can lead to death.
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What are the pathogenic causes of asthma?
A. People believe that asthma is caused by the environment.
B. People believe that asthma is caused by the air pollution.
C. Asthma is also believed to be inherited from the forefathers.
D. Asthma can be spread by the infected blood products.
目前,选用开源的虚拟化产品组建虚拟化平台,构建基于硬件的虚拟化层,可以选用( )
A. VMware
B. VirtualBox
C. Hyper-v
D. Xen
我们常提到的“装个VMware装个Linux虚拟机”属于( )
A. 存储虚拟化
B. 内存虚拟化
C. 系统虚拟化
D. 网络虚拟化
( )是一种轻量级虚拟化技术,它可以共享下层的操作系统内核和硬件资源,也可单独限制CPU、内存等资源,与虚拟机最大的不同是,它不用再安装操作系统。
A. 容器
B. 虚拟化层
C. 镜像
D. 虚拟机