Amazon Web Services itexams aws Certified Associate Saa-c03 Dumps Pdf by Ayub q281 vce pdf

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Exam Name:	AWS Certified Solutions Architect - Associate (SAA-C03)
Exam Code:	SAA-C03 Dumps
Vendor:	Amazon Web Services	Certification:	AWS Certified Associate
Questions:	999 Q&A's	Shared By:	ayub

Question 144

A company has a multi-tier payment processing application that is based on virtual machines (VMs). The communication between the tiers occurs asynchronously through a third-party middleware solution that guarantees exactly-once delivery.

The company needs a solution that requires the least amount of infrastructure management. The solution must guarantee exactly-once delivery for application messaging

Which combination of actions will meet these requirements? (Select TWO.)

Options:

Use AWS Lambda for the compute layers in the architecture.

Use Amazon EC2 instances for the compute layers in the architecture.

Use Amazon Simple Notification Service (Amazon SNS) as the messaging component between the compute layers.

Use Amazon Simple Queue Service (Amazon SQS) FIFO queues as the messaging component between the compute layers.

Use containers that are based on Amazon Elastic Kubemetes Service (Amazon EKS) for the compute layers in the architecture.

Discussion

Question 145

A company is designing a tightly coupled high performance computing (HPC) environment in the AWS Cloud The company needs to include features that will optimize the HPC environment for networking and storage.

Which combination of solutions will meet these requirements? (Select TWO )

Options:

Create an accelerator in AWS Global Accelerator. Configure custom routing for the accelerator.

Create an Amazon FSx for Lustre file system. Configure the file system with scratch storage.

Create an Amazon CloudFront distribution. Configure the viewer protocol policy to be HTTP and HTTPS.

Launch Amazon EC2 instances. Attach an Elastic Fabric Adapter (EFA) to the instances.

Create an AWS Elastic Beanstalk deployment to manage the environment.

Discussion

Answer:

B, D

Explanation:

These two solutions will optimize the HPC environment for networking and storage. Amazon FSx for Lustre is a fully managed service that provides cost-effective, high-performance, scalable storage for compute workloads. It is built on the world’s most popular high-performance file system, Lustre, which is designed for applications that require fast storage, such as HPC and machine learning. By configuring the file system with scratch storage, you can achieve sub-millisecond latencies, up to hundreds of GBs/s of throughput, and millions of IOPS. Scratch file systems are ideal for temporary storage and shorter-term processing of data. Data is not replicated and does not persist if a file server fails. For more information, see Amazon FSx for Lustre.

Elastic Fabric Adapter (EFA) is a network interface for Amazon EC2 instances that enables customers to run applications requiring high levels of inter-node communications at scale on AWS. Its custom-built operating system (OS) bypass hardware interface enhances the performance of inter-instance communications, which is critical to scaling HPC and machine learning applications. EFA provides a low-latency, low-jitter channel for inter-instance communications, enabling your tightly-coupled HPC or distributed machine learning applications to scale to thousands of cores. EFA uses libfabric interface and libfabric APIs for communications, which are supported by most HPC programming models. For more information, see Elastic Fabric Adapter.

The other solutions are not suitable for optimizing the HPC environment for networking and storage. AWS Global Accelerator is a networking service that helps you improve the availability, performance, and security of your public applications by using the AWS global network. It provides two global static public IPs, deterministic routing, fast failover, and TCP termination at the edge for your application endpoints. However, it does not support OS-bypass capabilities or high-performance file systems that are required for HPC and machine learning applications. For more information, see AWS Global Accelerator.

Amazon CloudFront is a content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds, all within a developer-friendly environment. CloudFront is integrated with AWS services such as Amazon S3, Amazon EC2, AWS Elemental Media Services, AWS Shield, AWS WAF, and AWS Lambda@Edge. However, CloudFront is not designed for HPC and machine learning applications that require high levels of inter-node communications and fast storage. For more information, see [Amazon CloudFront].

AWS Elastic Beanstalk is an easy-to-use service for deploying and scaling web applications and services developed with Java, .NET, PHP, Node.js, Python, Ruby, Go, and Docker on familiar servers such as Apache, Nginx, Passenger, and IIS. You can simply upload your code and Elastic Beanstalk automatically handles the deployment, from capacity provisioning, load balancing, auto-scaling to application health monitoring. However, Elastic Beanstalk is not optimized for HPC and machine learning applications that require OS-bypass capabilities and high-performance file systems. For more information, see [AWS Elastic Beanstalk].

References: Amazon FSx for Lustre, Elastic Fabric Adapter, AWS Global Accelerator, [Amazon CloudFront], [AWS Elastic Beanstalk].

Question 146

A company has an AWS Direct Connect connection from its on-premises location to an AWS account The AWS account has 30 different VPCs in the same AWS Region The VPCs use private virtual interfaces (VIFs) Each VPC has a CIDR block that does not overlap with other networks under the company's control

The company wants to centrally manage the networking architecture while still allowing each VPC to communicate with all other VPCs and on-premises networks

Which solution will meet these requirements with the LEAST amount of operational overhead?

Options:

Create a transit gateway and associate the Direct Connect connection with a new transit VIF Turn on the transit gateway's route propagation feature

Create a Direct Connect gateway Recreate the private VIFs to use the new gateway Associate each VPC by creating new virtual private gateways

Create a transit VPC Connect the Direct Connect connection to the transit VPC Create a peenng connection between all other VPCs in the Region Update the route tables

Create AWS Site-to-Site VPN connections from on premises to each VPC Ensure that both VPN tunnels are UP for each connection Turn on the route propagation feature

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Question 147

A company is creating an application The company stores data from tests of the application in multiple on-premises locations

The company needs to connect the on-premises locations to VPCs in an AWS Region in the AWS Cloud The number of accounts and VPCs will increase during the next year The network architecture must simplify the administration of new connections and must provide the ability to scale.

Which solution will meet these requirements with the LEAST administrative overhead'?

Options:

Create a peering connection between the VPCs Create a VPN connection between the VPCs and the on-premises locations.

Launch an Amazon EC2 instance On the instance, include VPN software that uses a VPN connection to connect all VPCs and on-premises locations.

Create a transit gateway Create VPC attachments for the VPC connections Create VPN attachments for the on-premises connections.

Create an AWS Direct Connect connection between the on-premises locations and a central VPC. Connect the central VPC to other VPCs by using peering connections.