Cloud Concepts & Benefits
Difficulty: easy
Overview
Cloud computing is the on-demand delivery of IT resources—compute, storage, databases, networking, analytics, and more—over the internet with pay-as-you-go pricing.
Six Advantages of Cloud Computing (AWS):
- Trade capital expense for variable expense — Pay only for what you consume instead of investing upfront in data centers and servers.
- Benefit from massive economies of scale — AWS serves millions of customers, achieving cost efficiencies that are passed on as lower prices.
- Stop guessing capacity — Provision exactly what you need and scale up or down in minutes.
- Increase speed and agility — New resources are only a few clicks away, reducing the time to provision from weeks to minutes.
- Stop spending money on running data centers — Focus on differentiating projects, not infrastructure.
- Go global in minutes — Deploy to multiple AWS Regions worldwide with low latency.
Cloud Deployment Models:
- Public Cloud — Resources owned and operated by AWS; delivered over the internet (e.g., fully on AWS).
- Private Cloud — Cloud infrastructure operated solely for one organization, on-premises (e.g., VMware on-premises).
- Hybrid Cloud — Connects on-premises infrastructure with cloud resources (e.g., AWS Direct Connect linking your data center to AWS).
Key Cloud Benefits:
- Elasticity — Automatically scale resources up or down based on demand.
- Scalability — Handle increased workloads by adding resources.
- High Availability — Systems stay accessible with minimal downtime using redundant components across multiple AZs.
- Fault Tolerance — The system continues operating even when components fail.
- Agility — Rapidly experiment and iterate; provision new services in minutes.
Practice Linked Questions
Q1. Which statement BEST describes a core financial benefit of cloud computing compared to traditional on-premises infrastructure?
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Q2. A startup wants to launch a web application globally within hours and automatically handle unpredictable traffic spikes without buying hardware. Which cloud property BEST describes this capability?
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Q3. What does "high availability" mean in the context of AWS cloud architecture?
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Q4. Which TWO statements correctly describe advantages of AWS cloud computing compared to traditional on-premises infrastructure? (Select TWO — more than one answer may be correct)
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Q5. A company is evaluating cloud adoption. Their CFO asks how AWS achieves lower prices than traditional IT vendors. What is the primary reason?
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Q6. Which cloud deployment model describes an architecture where a company runs some workloads on AWS and keeps other systems in their own on-premises data center, with connectivity between the two?
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Q7. Which of the following is NOT a benefit of moving to the AWS Cloud?
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Q8. A manufacturing company must keep sensitive production data on their own servers due to strict legal requirements. However, they want to use AWS for development, testing, and analytics workloads. Which deployment model is MOST appropriate?
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Q9. According to AWS, what is "agility" as a cloud benefit, and which scenario BEST illustrates it?
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