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Cloud Interview Questions & Answers Sets

July 24, 2021 comments off

What is Cloud Computing? What is a Cloud Provider?

What are the advantages of cloud computing? Mention at least 3 advantages

Pay as you go (or consumption-based payment) – you are paying only for what you are using. No upfront payments and payment stops when resources are no longer used.
Scalable – resources are scaled down or up based on demand
What types of Cloud Computing services are there?

IAAS – Infrastructure as a Service PAAS – Platform as a Service SAAS – Software as a Service

Explain each of the following and give an example:

IAAS
PAAS
SAAS

IAAS – Users have control over complete Operating System and don’t need to worry about the physical resources, which is managed by Cloud Service Provider.
PAAS – CLoud Service Provider takes care of Operating System, Middlewares and users only need to focus on our Data and Application.
SAAS – A cloud based method to provide software to users, software logics running on cloud, can be run on-premises or managed by Cloud Service Provider.
What types of clouds (or cloud deployments) are there?

Public
Hybrid
Private

Explain each of the following Cloud Computing Deployments:

Public
Private
Hybrid

Public – Cloud services sharing computing resources among multiple customers
Private – Cloud services having computing resources limited to specific customer or organization, managed by third party or organizations itself
Hybrid – Combination of public and private clouds
What are the differences between Cloud Providers and On-Premise solution?

In cloud providers, someone else owns and manages the hardware, hire the relevant infrastructure teams and pays for real-estate (for both hardware and people). You can focus on your business.

In On-Premise solution, it’s quite the opposite. You need to take care of hardware, infrastructure teams and pay for everything which can be quite expensive. On the other hand it’s tailored to your needs.

What is Serverless Computing?

The main idea behind serverless computing is that you don’t need to manage the creation and configuration of server. All you need to focus on is splitting your app into multiple functions which will be triggered by some actions.

It’s important to note that:

Serverless Computing is still using servers. So saying there are no servers in serverless computing is completely wrong
Serverless Computing allows you to have a different paying model. You basically pay only when your functions are running and not when the VM or containers are running as in other payment models
Can we replace any type of computing on servers with serverless?

Is there a difference between managed service to SaaS or is it the same thing?

Rajesh Kumar
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