OpenStack 面试题与答案
问题 11. What is the role of Heat in OpenStack?
Heat is the orchestration service in OpenStack, allowing users to describe and automate the deployment of infrastructure resources as a code through templates.
问题 12. Explain the concept of 'Floating IP' in Neutron.
A Floating IP in Neutron is an external IP address that can be associated with an OpenStack instance, enabling external connectivity. It can be dynamically reassigned to different instances.
问题 13. What is the purpose of Ceilometer in OpenStack?
Ceilometer is the telemetry and metering service in OpenStack, providing data and metrics on the usage of cloud resources. It helps in billing, monitoring, and capacity planning.
问题 14. Explain the use of the 'snapshot' feature in Cinder.
In Cinder, a snapshot is a point-in-time copy of a volume. It allows users to create a backup or capture the state of a volume, providing data protection and recovery options.
问题 15. What is the purpose of the Sahara project in OpenStack?
Sahara is the data processing service in OpenStack, enabling the provisioning and management of data processing frameworks, such as Apache Hadoop and Spark, on OpenStack clusters.
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