1. What is Cloud Computing?
Q: What is cloud computing, and how does it work?
A: Cloud computing refers to the delivery of computing services such as servers,
storage, databases, networking, software, and analytics over the internet (the
cloud). It allows businesses to access technology resources without owning
physical hardware or software, using remote servers instead. These services are
typically offered on a pay-as-you-go basis, providing scalability, flexibility, and cost
efficiency.
2. What are the different cloud service models?
Q: Explain the different cloud service models: IaaS, PaaS, and SaaS.
A:
IaaS (Infrastructure as a Service): Provides virtualized computing resources
over the internet. Example: Amazon EC2, Google Compute Engine.
PaaS (Platform as a Service): Provides a platform for developers to build,
deploy, and manage applications without dealing with the underlying
infrastructure. Example: Microsoft Azure App Services.
SaaS (Software as a Service): Delivers software applications via the internet
on a subscription basis. Example: Google Workspace, Microsoft Office 365.
3. What are the cloud deployment models?
Q: Describe the different cloud deployment models.
A: The four primary cloud deployment models are:
, Public Cloud: Services are delivered over the internet and shared across
multiple organizations (e.g., AWS, Azure).
Private Cloud: Dedicated infrastructure used by one organization, offering
more control and security.
Hybrid Cloud: A combination of public and private clouds, allowing data
and applications to be shared between them.
Community Cloud: Shared infrastructure for a specific community of users
with similar interests or concerns (e.g., healthcare or government).
4. How does Virtualization work in Cloud Computing?
Q: What is virtualization, and why is it important for cloud computing?
A: Virtualization is the process of creating virtual (rather than physical) versions of
servers, storage devices, networks, and other resources. In cloud computing,
virtualization allows for resource pooling, enabling multiple virtual machines
(VMs) to run on a single physical server, optimizing resource usage and ensuring
scalability.
5. What are the security and compliance challenges in cloud
computing?
Q: How do cloud security and compliance differ from traditional on-premises IT
security?
A: Cloud security involves protecting data and services in a shared environment,
requiring organizations to trust third-party providers for data security. Key
challenges include data breaches, loss of control over sensitive data, and
compliance with regulations. Traditional on-premises security allows more direct
control over systems but lacks the flexibility and scalability offered by the cloud.
Compliance standards like GDPR and HIPAA apply to both, but cloud providers
must ensure they meet the necessary certifications.