350-500

A company is planning to migrate to the AWS Cloud. The company wants to identify measurable business outcomes that will explain the value of the company's decision to migrate.

Which phase of the cloud transformation journey includes these activities?

• • A. Envision

• • B. Align

• • C. Scale

• • D. Launch

Answer explanation

The correct answer is:

A. Envision

Explanation:

The Envision phase of the AWS Cloud Adoption Framework (AWS CAF) cloud transformation journey involves understanding the business objectives and outcomes that the organization aims to achieve through cloud adoption. During this phase, measurable business outcomes are identified to explain the value of the company's decision to migrate to the cloud. This includes defining key performance indicators (KPIs), business benefits, and strategic goals that can be achieved through cloud migration.

Why the other options are incorrect:

B. Align:

The Align phase focuses on aligning the organization’s leadership and stakeholders around the cloud adoption strategy and ensuring that everyone is committed to the transformation journey. This phase does not primarily focus on identifying measurable business outcomes.

C. Scale:

The Scale phase involves expanding cloud adoption across the organization, optimizing cloud usage, and scaling operations. This phase comes after the initial migration and does not primarily focus on identifying business outcomes.

D. Launch:

The Launch phase involves executing the migration plan, moving workloads to the cloud, and starting to operate in the cloud environment. This phase focuses on the actual implementation rather than identifying measurable business outcomes.

Therefore, A. Envision is the correct phase where identifying measurable business outcomes to explain the value of migrating to the AWS Cloud takes place.

Which AWS service or component allows inbound traffic from the internet to access a VPC?

• • A. Internet gateway

• • B. NAT gateway

• • C. AWS WAF

• • D. VPC peering

Answer explanation

The correct answer is:

A. Internet gateway

Explanation:

An Internet gateway is a VPC component that allows communication between instances in a VPC and the internet. It enables instances in the VPC to connect to the internet and allows inbound traffic from the internet to access instances within the VPC.

Why the other options are incorrect:

B. NAT gateway:

A NAT gateway allows instances in a private subnet to connect to the internet or other AWS services but prevents the internet from initiating connections to those instances. It is used for outbound traffic, not inbound.

C. AWS WAF:

AWS Web Application Firewall (WAF) is a web application firewall that helps protect web applications from common web exploits and vulnerabilities. It does not enable or facilitate inbound internet traffic to a VPC.

D. VPC peering:

VPC peering connection allows instances in one VPC to communicate with instances in another VPC. It does not provide connectivity between a VPC and the internet.

Therefore, A. Internet gateway is the correct AWS service/component that allows inbound traffic from the internet to access a VPC.

Which AWS service can companies use to create infrastructure from code?

• • A. Amazon Elastic Kubernetes Service (Amazon EKS)

• • B. AWS Outposts

• • C. AWS CodePipeline

• • D. AWS CloudFormation

Answer explanation

The correct answer is:

D. AWS CloudFormation

Explanation:

AWS CloudFormation allows companies to define and provision AWS infrastructure as code. With CloudFormation, you create templates that describe the AWS resources required for your application, and CloudFormation takes care of provisioning and configuring those resources.

Why the other options are incorrect:

A. Amazon Elastic Kubernetes Service (Amazon EKS):

Amazon EKS is a managed Kubernetes service that simplifies running Kubernetes on AWS. It is not specifically used for creating infrastructure from code, though it can be part of a broader infrastructure-as-code strategy.

B. AWS Outposts:

AWS Outposts extends AWS infrastructure and services to on-premises locations. It provides a way to run AWS services locally but is not a tool for creating infrastructure from code.

C. AWS CodePipeline:

AWS CodePipeline is a continuous integration and continuous delivery (CI/CD) service for fast and reliable application and infrastructure updates. While it can automate the deployment process, it is not specifically designed for defining and provisioning infrastructure as code.

Therefore, D. AWS CloudFormation is the correct AWS service that allows companies to create infrastructure from code.

Which guideline is a well-architected design principle for building cloud applications?

• • A. Keep static data closer to compute resources.

• • B. Provision resources for peak capacity.

• • C. Design for automated recovery from failure.

• • D. Use tightly coupled components.

Answer explanation

The correct answer is:

C. Design for automated recovery from failure.

Explanation:

Designing for automated recovery from failure is a key principle in building resilient and robust cloud applications. This involves creating systems that can automatically detect failures and recover without human intervention, ensuring high availability and reliability.

Why the other options are incorrect:

A. Keep static data closer to compute resources:

While it's generally good practice to optimize data locality for performance reasons, it is not a well-architected design principle on its own.

B. Provision resources for peak capacity:

This approach can lead to over-provisioning and higher costs. Instead, cloud design principles encourage using elasticity to scale resources up or down based on demand.

D. Use tightly coupled components:

A well-architected design promotes loosely coupled components to enhance scalability, maintainability, and fault isolation. Tightly coupled components can create single points of failure and make systems harder to scale and maintain.

Therefore, C. Design for automated recovery from failure is the correct guideline that aligns with the principles of a well-architected design for building cloud applications.

A company needs to move 75 petabytes of data from its on-premises data centers to AWS.

Which AWS service should the company use to meet these requirements MOST cost-effectively?

• • A. AWS Snowball Edge Storage Optimized

• • B. AWS Snowmobile

• • C. AWS Direct Connect

• • D. AWS Storage Gateway

Answer explanation

The correct answer is:

B. AWS Snowmobile

Explanation:

AWS Snowmobile is designed for transferring massive amounts of data (up to 100 petabytes per Snowmobile) from on-premises data centers to AWS. It is the most cost-effective and efficient solution for moving extremely large datasets like 75 petabytes, as it involves a secure, ruggedized shipping container pulled by a semi-trailer truck.

Why the other options are incorrect:

A. AWS Snowball Edge Storage Optimized:

While AWS Snowball Edge devices are suitable for transferring large amounts of data, they have a capacity limit of about 100 terabytes per device. Moving 75 petabytes using Snowball Edge would require multiple devices, making it less practical and potentially more costly compared to AWS Snowmobile.

C. AWS Direct Connect:

AWS Direct Connect provides a dedicated network connection between on-premises data centers and AWS. While it is useful for ongoing data transfer and low-latency requirements, transferring 75 petabytes of data over a network connection would take a significant amount of time and could be costly depending on the bandwidth available.

D. AWS Storage Gateway:

AWS Storage Gateway is a hybrid cloud storage service that provides on-premises access to virtually unlimited cloud storage. It is typically used for continuous data transfer, backups, and archiving rather than for a one-time large-scale data migration.

Therefore, B. AWS Snowmobile is the most cost-effective AWS service for moving 75 petabytes of data from on-premises data centers to AWS.

Which of the following are pillars of the AWS Well-Architected Framework? (Choose two.)

• • A. Resource scalability

• • B. Performance efficiency

• • C. System elasticity

• • D. Agile development

• • E. Operational excellence

Answer explanation

The correct answers are:

B. Performance efficiency

E. Operational excellence

Explanation:

The AWS Well-Architected Framework is built on five pillars:

1. Operational Excellence: Focuses on operations processes that support development and run workloads effectively, gain insights into operations, and continuously improve supporting processes and procedures.

2. Security: Focuses on protecting information, systems, and assets while delivering business value through risk assessments and mitigation strategies.

3. Reliability: Ensures a workload performs its intended function correctly and consistently, and can recover quickly from failures.

4. Performance Efficiency: Focuses on using IT and computing resources efficiently to meet system requirements and to maintain efficiency as demand changes and technologies evolve.

5. Cost Optimization: Focuses on avoiding unnecessary costs and understanding where money is being spent, as well as achieving and maintaining efficiency.

Why the other options are incorrect:

A. Resource scalability:

While scalability is an important aspect of cloud architecture, it is not specifically one of the five pillars of the AWS Well-Architected Framework.

C. System elasticity:

Elasticity is a characteristic of performance efficiency and reliability but is not listed as one of the five specific pillars.

D. Agile development:

Agile development is a methodology for software development and project management, not a pillar of the AWS Well-Architected Framework.

Therefore, the correct pillars are B. Performance efficiency and E. Operational excellence.

A company needs to connect its on-premises data center to the AWS Cloud. The company needs a dedicated, low-latency connection with consistent network performance.

Which AWS service will meet these requirements?

• • A. AWS Global Accelerator

• • B. Amazon CloudFront

• • C. AWS Direct Connect

• • D. AWS Managed VPN

Answer explanation

The correct answer is:

C. AWS Direct Connect

Explanation:

AWS Direct Connect is a dedicated network connection that links your on-premises data center to AWS. It provides a high-bandwidth, low-latency connection with consistent network performance, making it ideal for workloads that require reliable, high-speed connectivity between on-premises infrastructure and the AWS Cloud.

Why the other options are incorrect:

A. AWS Global Accelerator:

AWS Global Accelerator is a network service that improves the availability and performance of your applications with static IP addresses and intelligent routing through the AWS global network. It does not provide a dedicated connection from your on-premises data center to AWS.

B. Amazon CloudFront:

Amazon CloudFront is a content delivery network (CDN) service that delivers data, videos, applications, and APIs to customers globally with low latency and high transfer speeds. It is not designed for dedicated, low-latency connections between data centers and AWS.

D. AWS Managed VPN:

AWS Managed VPN provides secure connections between your on-premises network and your AWS environment using IPsec VPN tunnels. While it offers secure connectivity, it does not guarantee the same level of low-latency and consistent network performance as AWS Direct Connect.

Therefore, C. AWS Direct Connect is the best service to meet the company's requirements for a dedicated, low-latency connection with consistent network performance.

Which design principles should a company apply to AWS Cloud workloads to maximize sustainability and minimize environmental impact? (Choose two.)

• • A. Maximize utilization of Amazon EC2 instances.

• • B. Minimize utilization of Amazon EC2 instances.

• • C. Minimize usage of managed services.

• • D. Force frequent application reinstallations by users.

• • E. Reduce the need for users to reinstall applications.

Answer explanation

The correct answers are:

A. Maximize utilization of Amazon EC2 instances.

E. Reduce the need for users to reinstall applications.

Explanation:

To maximize sustainability and minimize environmental impact for AWS Cloud workloads, companies should consider the following design principles:

A. Maximize utilization of Amazon EC2 instances:

- By maximizing the utilization of EC2 instances, companies can ensure that their resources are being used efficiently, reducing the need for additional instances and thereby minimizing the overall energy consumption and environmental impact.

E. Reduce the need for users to reinstall applications:

- Reducing the need for frequent application reinstallations minimizes unnecessary computing and storage activities, which in turn reduces the energy consumption and environmental footprint.

Why the other options are incorrect:

B. Minimize utilization of Amazon EC2 instances:

- Minimizing utilization can lead to underutilized resources, which means running more instances than necessary, ultimately increasing energy consumption and environmental impact.

C. Minimize usage of managed services:

- Managed services are typically optimized for efficiency and sustainability by AWS. Minimizing their usage can lead to less efficient custom implementations, increasing environmental impact.

D. Force frequent application reinstallations by users:

- This increases unnecessary computing and storage activities, leading to higher energy consumption and a larger environmental footprint.

Therefore, A. Maximize utilization of Amazon EC2 instances and E. Reduce the need for users to reinstall applications are the design principles that best support sustainability and minimize environmental impact.

In which ways does the AWS Cloud offer lower total cost of ownership (TCO) of computing resources than on-premises data centers? (Choose two.)

• • A. AWS replaces upfront capital expenditures with pay-as-you-go costs.

• • B. AWS is designed for high availability, which eliminates user downtime.

• • C. AWS eliminates the need for on-premises IT staff.

• • D. AWS uses economies of scale to continually reduce prices.

• • E. AWS offers a single pricing model for Amazon EC2 instances.

Answer explanation

The correct answers are:

A. AWS replaces upfront capital expenditures with pay-as-you-go costs.

D. AWS uses economies of scale to continually reduce prices.

Explanation:

AWS offers lower total cost of ownership (TCO) of computing resources compared to on-premises data centers in several ways:

A. AWS replaces upfront capital expenditures with pay-as-you-go costs:

- AWS allows organizations to avoid large upfront investments in physical hardware and infrastructure. Instead, they pay for only what they use on a pay-as-you-go basis, which can reduce initial financial outlay and provide better cost predictability.

D. AWS uses economies of scale to continually reduce prices:

- AWS leverages its massive scale and purchasing power to negotiate lower prices with vendors and suppliers. These cost savings are passed on to customers through reduced prices for services and resources, making AWS more cost-effective over time.

Why the other options are incorrect:

B. AWS is designed for high availability, which eliminates user downtime:

- While high availability is a benefit of AWS, it does not directly relate to lowering TCO compared to on-premises data centers. High availability helps in reducing the impact of downtime but may involve additional costs for redundancy and data replication.

C. AWS eliminates the need for on-premises IT staff:

- AWS reduces the need for on-premises IT staff to manage physical hardware and infrastructure, but it does not completely eliminate the need for IT staff. Organizations still require skilled personnel to manage cloud resources, applications, security, and compliance.

E. AWS offers a single pricing model for Amazon EC2 instances:

- AWS offers various pricing models for EC2 instances, including On-Demand, Reserved Instances, and Spot Instances, tailored to different usage patterns and cost optimization strategies. The availability of multiple pricing models enhances cost flexibility but does not inherently reduce TCO compared to on-premises data centers.

Therefore, A. AWS replaces upfront capital expenditures with pay-as-you-go costs and D. AWS uses economies of scale to continually reduce prices are the ways in which AWS offers lower total cost of ownership of computing resources compared to on-premises data centers.

A company wants to deploy some of its resources in the AWS Cloud. To meet regulatory requirements, the data must remain local and on premises. There must be low latency between AWS and the company resources.

Which AWS service or feature can be used to meet these requirements?

• • A. AWS Local Zones

• • B. Availability Zones

• • C. AWS Outposts

• • D. AWS Wavelength Zones

Answer explanation

Based on the requirements provided:

A. AWS Local Zones - AWS Local Zones are a type of AWS infrastructure deployment that places AWS compute, storage, database, and other services close to large population, industry, and IT centers. They are designed to provide ultra-low latency to end users in a specific geographic area.

B. Availability Zones - AWS Availability Zones are distinct locations within a region, each comprising one or more data centers equipped with independent power, cooling, and networking. They are designed to be isolated from failures in other Availability Zones, providing high availability and fault tolerance.

C. AWS Outposts - AWS Outposts are fully managed and configurable compute and storage racks built with AWS-designed hardware that you can deploy in your on-premises facility. They extend AWS infrastructure, services, APIs, and tools to virtually any data center, co-location space, or on-premises facility for a truly consistent hybrid experience.

D. AWS Wavelength Zones - AWS Wavelength Zones are AWS infrastructure deployments that embed AWS compute and storage services within telecommunications providers' data centers at the edge of the 5G networks. They enable ultra-low latency applications for 5G devices.

Given the requirements of local data storage and low latency between AWS and on-premises resources, the most suitable option would be:

C. AWS Outposts

- AWS Outposts allows you to run AWS infrastructure, services, APIs, and tools in your own data center. This enables you to keep data local and meet regulatory requirements while maintaining low-latency connections between AWS services and your on-premises resources.

AWS Local Zones could be another consideration if the requirement is specifically for low-latency access to AWS services from a specific geographic area, but it does not provide on-premises deployment capabilities like AWS Outposts.

Therefore, C. AWS Outposts is likely the best choice to meet the specified requirements.