When is it beneficial for a company to use a Spot Instance?

• A.When dedicated capacity is needed.
• B.When there are mission-critical workloads.
• C.When an instance should not be stopped.
  The key to understanding spot instances is to look at the way that cloud service providers such as Amazon Web Services (AWS) operate. Cloud service providers invest in hardware resources and then release those resources (often on a per-hour basis) to subscribers. One of the problems with this business model, however, is that at any given time, there are likely to be compute resources that are not being utilized. These resources represent hardware capacity that AWS has paid for but are sitting idle, and not making AWS any money at the moment.
  Rather than allowing these computing resources to go to waste, AWS offers them at a substantially discounted rate, with the understanding that if someone needs those resources for running a normal EC2 instance, that instance will take priority over spot instances that are using the hardware resources at a discounted rate. In fact, spot instances will be stopped if the resources are needed elsewhere.
• D.When there is flexibility in when an application needs to run.

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What is an advantage of using the AWS Cloud over a traditional on-premises solution?

• A.Users do not have to guess about future capacity needs.
• B.Users can utilize existing hardware contracts for purchases.
• C.Users can fix costs no matter what their traffic is.
• D.Users can avoid audits by using reports from AWS.

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What are the four primary benefits of using the cloud/AWS?
Choose the Correct answer:

• A.Elasticity, scalability, easy access, limited storage.
• B.Fault tolerance, scalability, elasticity, and high availability.
• C.Unlimited storage, limited compute capacity, fault tolerance, and high availability.
• D.Fault tolerance, scalability, sometimes available, unlimited storage

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A media company uploads audio and video files to a centralized Amazon S3 bucket from locations that are geographically dispersed.
Which AWS solution will optimize transfer speeds for these files?

• A.S3 Transfer Accelerator
• B.Amazon CloudFront
• C.AWS Direct Connect
• D.AWS Global Accelerator

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Which AWS service should a company use to create a NoSQL database?

• A.Amazon DynamoDB
• B.Amazon Aurora
• C.Amazon Neptune
• D.Amazon Redshift

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