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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Design Resilient Architectures | 26% | - Highly available architecture
|
| Topic 2: Design Secure Architectures | 30% | - Secure workloads and applications
|
| Topic 3: Design Cost-Optimized Architectures | 20% | - Cost management tools
|
| Topic 4: Design High-Performing Architectures | 24% | - Compute and storage optimization
|
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NEW QUESTION # 802
A company is running a multi-tier web application on premises. The web application is containerized and runs on a number of Linux hosts connected to a PostgreSQL database that contains user records. The operational overhead of maintaining the infrastructure and capacity planning is limiting the company's growth. A solutions architect must improve the application's infrastructure.
Which combination of actions should the solutions architect take to accomplish this? (Choose two.)
Answer: A,D
Explanation:
Amazon Aurora is a fully managed, scalable, and highly available relational database service that is compatible with PostgreSQL. Migrating the database to Amazon Aurora would reduce the operational overhead of maintaining the database infrastructure and allow the company to focus on building and scaling the application. AWS Fargate is a fully managed container orchestration service that enables users to run containers without the need to manage the underlying EC2 instances. By using AWS Fargate with Amazon Elastic Container Service (Amazon ECS), the solutions architect can improve the scalability and efficiency of the web application and reduce the operational overhead of maintaining the underlying infrastructure.
NEW QUESTION # 803
A media company hosts large volumes of archive data that are about 250 TB in size on their internal servers. They have decided to move these data to S3 because of its durability and redundancy. The company currently has a 100 Mbps dedicated line connecting their head office to the Internet.
Which of the following is the FASTEST and the MOST cost-effective way to import all these data to Amazon S3?
Answer: A
Explanation:
AWS Snowball is a petabyte-scale data transport solution that uses secure appliances to transfer large amounts of data into and out of the AWS cloud. Using Snowball addresses common challenges with large-scale data transfers, including high network costs, long transfer times, and security concerns.
Transferring data with Snowball is simple, fast, secure, and can be as little as one-fifth the cost of high- speed Internet.
Snowball is a strong choice for data transfer if you need to more securely and quickly transfer terabytes to many petabytes of data to AWS. Snowball can also be the right choice if you don't want to make expensive upgrades to your network infrastructure, if you frequently experience large backlogs of data, if you're located in a physically isolated environment, or if you're in an area where high-speed Internet connections are not available or cost-prohibitive.
As a rule of thumb, if it takes more than one week to upload your data to AWS using the spare capacity of your existing Internet connection, then you should consider using Snowball. For example, if you have a 100 Mb connection that you can solely dedicate to transferring your data and need to transfer 100 TB of data, it takes more than 100 days to complete data transfer over that connection. You can make the same transfer by using multiple Snowballs in about a week.
Hence, ordering multiple AWS Snowball devices to upload the files to Amazon S3 is the correct answer.
Uploading it directly to S3 is incorrect since this would take too long to finish due to the slow Internet connection of the company.
Establishing an AWS Direct Connect connection then transferring the data over to S3 is incorrect since provisioning a line for Direct Connect would take too much time and might not give you the fastest data transfer solution. In addition, the scenario didn't warrant an establishment of a dedicated connection from your on-premises data center to AWS. The primary goal is to just do a one-time migration of data to AWS which can be accomplished by using AWS Snowball devices.
Using AWS Snowmobile to transfer the data over to S3 is incorrect because Snowmobile is more suitable if you need to move extremely large amounts of data to AWS or need to transfer up to 100PB of data. This will be transported on a 45-foot long ruggedized shipping container, pulled by a semi-trailer truck. Take note that you only need to migrate 250 TB of data, hence, this is not the most suitable and cost-effective solution.
References:
https://aws.amazon.com/snowball/
https://aws.amazon.com/snowball/faqs/
S3 Transfer Acceleration vs Direct Connect vs VPN vs Snowball vs Snowmobile:
https://tutorialsdojo.com/s3-transfer-acceleration-vs-direct-connect-vs-vpn-vs-snowball-vs-snowmobile/ Comparison of AWS Services Cheat Sheets:
https://tutorialsdojo.com/comparison-of-aws-services/
NEW QUESTION # 804
A company has a production workload that is spread across different AWS accounts in various AWS Regions.
The company uses AWS Cost Explorer to continuously monitor costs and usage. The company wants to receive notifications when the cost and usage spending of the workload is unusual.
Which combination of steps will meet these requirements? (Select TWO.)
Answer: A,C
Explanation:
AWS Cost Anomaly Detection allows you to create monitors that track the cost and usage of your AWS resources and alert you when there is an unusual spending pattern. You can create monitors based on different dimensions, such as AWS services, accounts, tags, or cost categories. You can also create alert subscriptions that notify you by email or Amazon SNS when an anomaly is detected. You can specify the threshold and frequency of the alerts, and choose to receive weekly summaries of your anomalies.
Reference URLs:
1 https://aws.amazon.com/aws-cost-management/aws-cost-anomaly-detection/
2 https://docs.aws.amazon.com/cost-management/latest/userguide/getting-started-ad.html
3 https://docs.aws.amazon.com/cost-management/latest/userguide/manage-ad.html
NEW QUESTION # 805
A company has applications that run on Amazon EC2 instances. The EC2 instances connect to Amazon RDS databases by using an IAM role that has associated policies. The company wants to use AWS Systems Manager to patch the EC2 instances without disrupting the running applications.
Which solution will meet these requirements?
Answer: C
Explanation:
The most suitable solution for the company's requirements is to enable Default Host Configuration Management in Systems Manager to manage the EC2 instances. This solution will allow the company to patch the EC2 instances without disrupting the running applications and without manually creating or modifying IAM roles or users.
Default Host Configuration Management is a feature of AWS Systems Manager that enables Systems Manager to manage EC2 instances automatically as managed instances. A managed instance is an EC2 instance that is configured for use with Systems Manager. The benefits of managing instances with Systems Manager include the following:
Connect to EC2 instances securely using Session Manager.
Perform automated patch scans using Patch Manager.
View detailed information about instances using Systems Manager Inventory.
Track and manage instances using Fleet Manager.
Keep SSM Agent up to date automatically.
Default Host Configuration Management makes it possible to manage EC2 instances without having to manually create an IAM instance profile. Instead, Default Host Configuration Management creates and applies a default IAM role to ensure that Systems Manager has permissions to manage all instances in the Region and account where it is activated.If thepermissions provided are not sufficient for the use case, the default IAM role can be modified or replaced with a custom role1.
The other options are not correct because they either have more operational overhead or do not meet the requirements. Creating a new IAM role, attaching the AmazonSSMManagedInstanceCore policy to the new IAM role, and attaching the new IAM role and the existing IAM role to the EC2 instances is not correct because this solution requires manual creation and management of IAM roles, which adds complexity and cost to the solution.The AmazonSSMManagedInstanceCore policy is a managed policy that grants permissions for Systems Manager core functionality2. Creating an IAM user, attaching the AmazonSSMManagedInstanceCore policy to the IAM user, and configuring Systems Manager to use the IAM user to manage the EC2 instances is not correct because this solution requires manual creation and management of IAM users, which adds complexity and cost to the solution.An IAM user is an identity within an AWS account that has specific permissions for a single person or application3. Removing the existing policies from the existing IAM role and adding the AmazonSSMManagedInstanceCore policy to the existing IAM role is not correct because this solution may disrupt the running applications that rely on the existing policies for accessing RDS databases.An IAM role is an identity within an AWS account that has specific permissions for a service or entity4.
Reference:
AWS managed policy: AmazonSSMManagedInstanceCore
IAM users
IAM roles
Default Host Management Configuration - AWS Systems Manager
NEW QUESTION # 806
A company is planning to launch a High Performance Computing (HPC) cluster in AWS that does Computational Fluid Dynamics (CFD) simulations. The solution should scale-out their simulation jobs to experiment with more tunable parameters for faster and more accurate results. The cluster is composed of Windows servers hosted on t3a.medium EC2 instances. As the Solutions Architect, you should ensure that the architecture provides higher bandwidth, higher packet per second (PPS) performance, and consistently lower inter-instance latencies.
Which is the MOST suitable and cost-effective solution that the Architect should implement to achieve the above requirements?
Answer: C
Explanation:
Enhanced networking uses single root I/O virtualization (SR-IOV) to provide high-performance networking capabilities on supported instance types. SR-IOV is a method of device virtualization that provides higher I/O performance and lower CPU utilization when compared to traditional virtualized network interfaces. Enhanced networking provides higher bandwidth, higher packet per second (PPS) performance, and consistently lower inter-instance latencies. There is no additional charge for using enhanced networking.
Amazon EC2 provides enhanced networking capabilities through the Elastic Network Adapter (ENA). It supports network speeds of up to 100 Gbps for supported instance types. Elastic Network Adapters (ENAs) provide traditional IP networking features that are required to support VPC networking.
An Elastic Fabric Adapter (EFA) is simply an Elastic Network Adapter (ENA) with added capabilities. It provides all of the functionality of an ENA, with additional OS-bypass functionality. OS-bypass is an access model that allows HPC and machine learning applications to communicate directly with the network interface hardware to provide low-latency, reliable transport functionality.
The OS-bypass capabilities of EFAs are not supported on Windows instances. If you attach an EFA to a Windows instance, the instance functions as an Elastic Network Adapter, without the added EFA capabilities.
Hence, the correct answer is to enable Enhanced Networking with Elastic Network Adapter (ENA) on the Windows EC2 Instances.
Enabling Enhanced Networking with Elastic Fabric Adapter (EFA) on the Windows EC2 Instances is incorrect because the OS-bypass capabilities of the Elastic Fabric Adapter (EFA) are not supported on Windows instances. Although you can attach EFA to your Windows instances, this will just act as a regular Elastic Network Adapter, without the added EFA capabilities. Moreover, it doesn't support the t3a.medium instance type that is being used in the HPC cluster.
Enabling Enhanced Networking with Intel 82599 Virtual Function (VF) interface on the Windows EC2 Instances is incorrect because although you can attach an Intel 82599 Virtual Function (VF) interface on your Windows EC2 Instances to improve its networking capabilities, it doesn't support the t3a.medium instance type that is being used in the HPC cluster.
Using AWS ParallelCluster to deploy and manage the HPC cluster to provide higher bandwidth, higher packet per second (PPS) performance, and lower inter-instance latencies is incorrect because an AWS ParallelCluster is just an AWS-supported open-source cluster management tool that makes it easy for you to deploy and manage High Performance Computing (HPC) clusters on AWS. It does not provide higher bandwidth, higher packet per second (PPS) performance, and lower inter-instance latencies, unlike ENA or EFA.
References:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/enhanced-networking.html
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/efa.html
NEW QUESTION # 807
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