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Curriculum
1. What are the key differences between Infrastructure as a Service (IaaS)
and Platform as a Service (PaaS) in cloud computing?
Answer:
IaaS provides virtualized computing resources over the internet, allowing users
to manage operating systems, storage, and applications themselves. PaaS, on the
other hand, offers a platform with tools and services to develop, test, and deploy
applications without managing the underlying infrastructure directly.
2. How does the pay-as-you-go model in cloud computing benefit
organizations financially?
Answer:
The pay-as-you-go model allows businesses to pay only for the resources they
actually use, which helps reduce capital expenditure. This model supports better
budget management, reduces wasteful spending, and offers flexibility in scaling
resources based on real-time demand.
3. What is the shared responsibility model in cloud security and why is it
important?
Answer:
The shared responsibility model outlines the division of security tasks between
the cloud provider and the customer. While the provider secures the
infrastructure, the customer secures their data and applications. This model
ensures clarity in security roles and reduces vulnerabilities.
,4. Describe how cloud computing supports business continuity and disaster
recovery planning.
Answer:
Cloud computing enables quick data backups, remote access, and redundancy
across multiple geographic regions. These features make it easier for businesses
to recover operations after disasters, reducing downtime and data loss, and
ensuring continuous service availability during emergencies.
5. What are the main characteristics that define cloud computing according
to the NIST (National Institute of Standards and Technology)?
Answer:
According to NIST, the five essential characteristics of cloud computing are
on-demand self-service, broad network access, resource pooling, rapid
elasticity, and measured service. These features collectively support scalability,
accessibility, and efficiency in delivering IT resources over the internet.
6. What is Software as a Service (SaaS) and how does it differ from
traditional software delivery models?
Answer:
SaaS delivers software applications over the internet on a subscription basis.
Unlike traditional software that requires installation and maintenance on local
machines, SaaS is accessed through web browsers, with updates and
infrastructure managed by the provider, reducing user overhead.
7. Explain the concept of virtualization and its importance in cloud
computing.
Answer:
Virtualization allows the creation of virtual versions of physical resources, like
servers or storage. It increases resource efficiency, scalability, and
cost-effectiveness. In cloud computing, virtualization enables dynamic resource
,allocation and supports multi-tenancy, which is fundamental for cloud service
delivery.
8. What is a public cloud and in what scenarios is it most beneficial?
Answer:
A public cloud is a cloud infrastructure offered by third-party providers over
the internet, available to multiple users. It's ideal for startups, testing
environments, or organizations needing cost-effective and scalable solutions
without maintaining physical hardware or managing infrastructure.
9. How does a private cloud differ from a public cloud in terms of control
and security?
Answer:
A private cloud is dedicated to a single organization, offering greater control
and enhanced security compared to public clouds. It’s often used by businesses
with strict regulatory requirements or data sensitivity concerns, where privacy
and customization are critical.
10. What are hybrid clouds and why are they commonly used by
enterprises?
Answer:
Hybrid clouds combine public and private cloud environments, allowing data
and applications to move between them. Enterprises use them for flexibility,
cost efficiency, and data sovereignty, enabling critical workloads to remain on
private servers while leveraging public resources as needed.
11. Describe multicloud strategies and how they benefit organizations.
Answer:
A multicloud strategy uses services from multiple cloud providers. This
, approach avoids vendor lock-in, enhances redundancy, and allows businesses to
choose best-of-breed services for different tasks, leading to improved
performance, resilience, and pricing flexibility across various platforms.
12. What is cloud scalability and how does it help businesses during peak
demand periods?
Answer:
Cloud scalability refers to the ability to increase or decrease IT resources as
needed. It allows businesses to handle increased workloads during peak periods
without investing in permanent infrastructure, thereby maintaining performance
and cost-efficiency.
13. Why is elasticity an important feature in cloud computing
environments?
Answer:
Elasticity is the automatic scaling of resources based on demand. It ensures
applications run efficiently without manual intervention, reduces costs by
avoiding over-provisioning, and supports seamless user experiences during
traffic spikes or workload changes.
14. What role does automation play in cloud computing environments?
Answer:
Automation in cloud computing streamlines tasks like deployment, scaling, and
monitoring. It reduces human error, speeds up service delivery, and improves
reliability by enabling continuous integration and delivery (CI/CD) pipelines,
crucial for agile and DevOps environments.
15. What is a Virtual Machine (VM) and how does it relate to cloud
infrastructure?