Elastic Cloud Enterprise Admin Interview Questions and Answers

1. What are some of the key features of Cloud Computing?

Answer:

• Reliable
• Scalable
• Agile
• Location Independent
• Multi-tenant

2. What are the benefits of Cloud Computing?

Answer:

• Data backup and storage of data
•  Powerful server capabilities
•  Incremented productivity
•  Cost-effective and time-saving

3. What are the cloud service models?

Answer:

Infrastructure as a Service (IaaS)
Platform as a Service (PaaS)
Software as a Service (SaaS)

4. Mention the layers of PaaS architecture.

Answer:

Cloud Controller

• Automatically creates virtual machines and controllers
•  Deploys applications
• Connects to services
• Automatically scales up and down

Storage Services

• Object
• NoSQL
• Relational
• Block storage

Applications Stored in Storage Services

• Simple-to-scale applications
• Easier recovery from failure

5. Which are the main constituents of the cloud ecosystem?

Answer:

• Cloud service providers
• Cloud consumers
• Direct consumers

6. What are the serverless components in cloud computing with their advantages and disadvantages?

Answer:

7. Why Hybrid Clouds are so important?

Answer:

Cloud Bursting:
Access capacity and specialized software are available in the public cloud and not in the private cloud.
Examples: Virtual Amazon and Dynamo

Leveraging the best of both worlds, there are hybrid clouds.

vCloud:

• It is a VMware cloud.
• It is expensive.
• It gives enterprise quality.

OpenStack:

• It has commodity servers and storage.
• It is less reliable.
• We can run web servers on OpenStack.
• the database is built on vCloud.

8. Mention the different types of models used for the deployment in Cloud Computing.

Answer:

• Private Cloud
• Public Cloud
• Community Cloud
• Hybrid Cloud

9. Explain security management in terms of Cloud Computing.

Answer:

• Identity management access provides the authorization of application services.
• Access control permission is given to users to have complete controlling access of another user who is entering into the cloud environment.
• Authentication and authorization provide permission to only the authorized and authenticated users to access the data and applications.

10. Which are the layers of Cloud Computing?

Answer:

• CLC or Cloud Controller
• Walrus
• Cluster Controller
• Storage Controller (SC)
• Node Controller (NC)