- (Topic 1)
Which of the following is an advantage of AWS Cloud computing?
Correct Answer:
C
The correct answer is C because AWS Cloud computing allows customers to trade fixed expenses for variable expenses. This means that customers only pay for the resources they use, and can scale up or down as needed. The other options are incorrect because they are not advantages of AWS Cloud computing. Trade security for elasticity means that customers have to compromise on the protection of their data and applications in order to adjust their capacity quickly. Trade operational excellence for agility means that customers have to sacrifice the quality and reliability of their operations in order to respond to changing needs faster. Trade elasticity for performance means that customers have to limit their ability to scale up or down in order to achieve higher speed and efficiency. Reference: What is Cloud Computing?
- (Topic 1)
Which option is an advantage of AWS Cloud computing that minimizes variable costs?
Correct Answer:
B
Economies of scale is the advantage of AWS Cloud computing that minimizes variable costs. Economies of scale refers to the reduction in the cost per unit as the output increases. AWS Cloud computing leverages economies of scale by providing a large pool of shared resources that can be accessed on demand and paid for as needed. AWS Cloud computing also passes the cost savings to the customers by offering lower prices and discounts. For more information, see Economies of Scale and AWS Pricing.
- (Topic 3)
A company is hosting an application in the AWS Cloud. The company wants to verify that underlying AWS services and general AWS infrastructure are operating normally.
Which combination of AWS services can the company use to gather the required information? (Select TWO.)
Correct Answer:
AD
AWS Personal Health Dashboard and AWS Service Health Dashboard are two AWS services that can help the company to verify that underlying AWS services and general AWS infrastructure are operating normally. AWS Personal Health Dashboard provides a personalized view into the performance and availability of the AWS services you are using, as well as alerts that are automatically triggered by changes in the health of those services. In addition to event-based alerts, Personal Health Dashboard provides proactive notifications of scheduled activities, such as any changes to the infrastructure powering your resources, enabling you to better plan for events that may affect you. These notifications can be delivered to you via email or mobile for quick visibility, and can always be viewed from within the AWS Management Console. When you get an alert, it includes detailed information and guidance, enabling you to take immediate action to address AWS events impacting your resources3. AWS Service Health Dashboard provides a general status of AWS services, and the Service health view displays the current and historical status of all AWS services. This page shows reported service events for services across AWS Regions. You don’t need to sign in or have an AWS account to access the AWS Service Health Dashboard – Service health page. You can also subscribe to RSS feeds for specific services or regions to receive notifications about service
events4. References: Getting started with your AWS Health Dashboard – Your account health, Introducing AWS Personal Health Dashboard
- (Topic 2)
A company wants its Amazon EC2 instances to share the same geographic area but use redundant underlying power sources.
Which solution will meet these requirements?
Correct Answer:
A
Using EC2 instances across multiple Availability Zones in the same AWS Region is a solution that meets the requirements of sharing the same geographic area but using redundant underlying power sources. Availability Zones are isolated locations within an AWS Region that have independent power, cooling, and physical security. They are connected through low-latency, high-throughput, and highly redundant networking. By launching EC2 instances in different Availability Zones, users can increase the fault tolerance and availability of their applications. Amazon CloudFront is a content delivery network (CDN) service that speeds up the delivery of web content and media to end users by caching it at the edge locations closer to them. It is not a database service and cannot be used to store operational data for EC2 instances. Edge locations are sites that are part of the Amazon CloudFront network and are located in many cities around the world. They are not the same as Availability Zones and do not provide redundancy for EC2 instances. AWS OpsWorks is a configuration management service that allows users to automate the deployment and management of applications using Chef or Puppet. It can be used to create stacks that span multiple AWS Regions, but this would not meet the requirement of sharing the same geographic area.
- (Topic 1)
A company has an online shopping website and wants to store customers' credit card data. The company must meet Payment Card Industry (PCI) standards.
Which service can the company use to access AWS compliance documentation?
Correct Answer:
B
The correct answer is B because AWS Artifact is a service that provides access to AWS compliance documentation, such as audit reports, security certifications, and agreements. AWS Artifact allows customers to download, review, and accept the documents that are relevant to their use of AWS services. The other options are incorrect because they are not services that provide access to AWS compliance documentation. Amazon Cloud Directory is a service that enables customers to create flexible cloud-native directories for organizing hierarchies of data. AWS Trusted Advisor is a service that provides real-time guidance to help customers follow AWS best practices for security, performance, cost optimization, and fault tolerance. Amazon Inspector is a service that helps customers find security vulnerabilities and deviations from best practices in their Amazon EC2 instances. Reference: [AWS Artifact FAQs]
