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Amazon AWS-Solutions-Architect-Associate Exam Syllabus Topics:

Section	Weight	Objectives
Design Secure Architectures	30%	- Design solutions for secure access 1. Federated access and AWS SSO 2. Secure API access 3. Identity and access management (IAM) - Design solutions for secure workloads 1. Data protection and encryption 2. Compliance and governance 3. Security groups and network ACLs - Design solutions for secure networks 1. Edge security and protection 2. Private access options 3. VPC design and connectivity
Design Cost-Optimized Architectures	20%	- Estimate costs and identify cost control mechanisms 1. Budgeting and alerts 2. Cost management tools - Identify cost-effective storage solutions 1. Data retention and archiving 2. Lifecycle management 3. Storage class selection - Design cost-effective compute solutions 1. Right-sizing and scaling 2. Instance type and purchasing options 3. Serverless vs provisioned resources - Design cost-effective network architectures 1. Data transfer cost optimization 2. Connectivity options selection - Select cost-effective database solutions 1. Database service pricing models 2. Capacity planning and optimization
Design High-Performing Architectures	24%	- Design high-performance compute solutions 1. Compute options (EC2, Lambda, ECS, EKS, Fargate) 2. Placement groups and networking 3. Scaling and performance optimization - Design high-performance database solutions 1. Database service selection (RDS, Aurora, DynamoDB, Neptune) 2. Read replicas and caching 3. Data partitioning and distribution - Determine high-performance storage solutions 1. Caching strategies 2. Data transfer and acceleration 3. Storage service selection (S3, EBS, EFS, FSx) - Design high-performance network architectures 1. Network optimization and routing 2. Edge delivery and content distribution
Design Resilient Architectures	26%	- Determine how to isolate workloads 1. Resource separation and segmentation 2. Isolation boundaries and security domains - Design solutions for disaster recovery 1. Cross-region replication and failover 2. RTO and RPO planning 3. Recovery strategies (backup, restore, pilot light, warm standby, multi-site) - Design highly available and fault-tolerant architectures 1. Load balancing and auto scaling 2. Replication and backup strategies 3. Multi-AZ and multi-region deployments

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Amazon AWS Certified Solutions Architect - Associate (SAA-C03) AWS-Solutions-Architect-Associate Prüfungsfragen mit Lösungen (Q214-Q219):

214. Frage
Which one of the following answers is not a possible state of Amazon CloudWatch Alarm?

A. INSUFFICIENT_DATA
B. OK
C. STATUS_CHECK_FAILED
D. ALARM

Antwort: C

Begründung:
Amazon CloudWatch Alarms have three possible states:
OK: The metric is within the defined threshold
ALARM: The metric is outside of the defined threshold
INSUFFICIENT_DATA: The alarm has just started, the metric is not available, or not enough data is available for the metric to determine the alarm state
Reference:
http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/AlarmThatSendsEmail.html

215. Frage
A company recently launched Linux-based application instances on Amazon EC2 in a private subnet and launched a Linux-based bastion host on an Amazon EC2 instance in a public subnet of a VPC A solutions architect needs to connect from the on-premises network, through the company's internet connection to the bastion host and to the application servers The solutions architect must make sure that the security groups of all the EC2 instances will allow that access Which combination of steps should the solutions architect take to meet these requirements? (Select TWO)

A. Replace the current security group of the bastion host with one that only allows inbound access from the external IP range for the company
B. Replace the current security group of the bastion host with one that only allows inbound access from the internal IP range for the company
C. Replace the current security group of the bastion host with one that only allows inbound access from the application instances
D. Replace the current security group of the application instances with one that allows inbound SSH access from only the public IP address of the bastion host
E. Replace the current security group of the application instances with one that allows inbound SSH access from only the private IP address of the bastion host

Antwort: A,E

Begründung:
https://digitalcloud.training/ssh-into-ec2-in-private-subnet/

216. Frage
A company s order system sends requests from clients to Amazon EC2 instances The EC2 instances process the orders and men store the orders in a database on Amazon RDS Users report that they must reprocess orders when the system fails. The company wants a resilient solution that can process orders automatically it a system outage occurs.
What should a solutions architect do to meet these requirements?

A. Move the EC2 instances into an Auto Scaling group Configure the order system to send messages to an Amazon Simple Queue Service (Amazon SQS) queue Configure the EC2 instances to consume messages from the queue
B. Create an Amazon Simple Notification Service (Amazon SNS) topic Create an AWS Lambda function, and subscribe the function to the SNS topic Configure the order system to send messages to the SNS topic Send a command to the EC2 instances to process the messages by using AWS Systems Manager Run Command
C. Move (he EC2 Instances into an Auto Scaling group Create an Amazon EventBridge (Amazon CloudWatch Events) rule to target an Amazon Elastic Container Service (Amazon ECS) task
D. Move the EC2 instances into an Auto Scaling group behind an Application Load Balancer (ALB) Update the order system to send messages to the ALB endpoint.

Antwort: A

Begründung:
To meet the company's requirements of having a resilient solution that can process orders automatically in case of a system outage, the solutions architect needs to implement a fault-tolerant architecture. Based on the given scenario, a potential solution is to move the EC2 instances into an Auto Scaling group and configure the order system to send messages to an Amazon Simple Queue Service (Amazon SQS) queue. The EC2 instances can then consume messages from the queue.

217. Frage
After setting up a Virtual Private Cloud (VPC) network, a more experienced cloud engineer suggests that to achieve low network latency and high network throughput you should look into setting up a placement group. You know nothing about this, but begin to do some research about it and are especially curious about its limitations. Which of the below statements is wrong in describing the limitations of a placement group?

A. A placement group can span multiple Availability Zones.
B. Although launching multiple instance types into a placement group is possible, this reduces the likelihood that the required capacity will be available for your launch to succeed.
C. A placement group can span peered VPCs
D. You can't move an existing instance into a placement group.

Antwort: A

Begründung:
A placement group is a logical grouping of instances within a single Availability Zone. Using placement groups enables applications to participate in a low-latency, 10 Gbps network. Placement groups are recommended for applications that benefit from low network latency, high network throughput, or both. To provide the lowest latency, and the highest packet-per-second network performance for your placement group, choose an instance type that supports enhanced networking.
Placement groups have the following limitations:
The name you specify for a placement group a name must be unique within your AWS account.
A placement group can't span multiple Availability Zones.
Although launching multiple instance types into a placement group is possible, this reduces the likelihood that the required capacity will be available for your launch to succeed. We recommend using the same instance type for all instances in a placement group.
You can't merge placement groups. Instead, you must terminate the instances in one placement group, and then relaunch those instances into the other placement group.
A placement group can span peered VPCs; however, you will not get full-bisection bandwidth between instances in peered VPCs. For more information about VPC peering connections, see VPC Peering in the
Amazon VPC User Guide.
You can't move an existing instance into a placement group. You can create an AMI from your existing instance, and then launch a new instance from the AMI into a placement group.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html

218. Frage
A solutions architect is tasked with transferring 750 TB of data from a network-attached file system located at a branch office to Amazon S3 Glacier The solution must avoid saturating the branch office's low-bandwidth internet connection.
What is the MOST cost-effective solution?

A. Create a site-to-site VPN tunnel to an Amazon S3 bucket and transfer the files directly Create a bucket policy to enforce a VPC endpoint
B. Mount the network-attached file system to Amazon S3 and copy the files directly. Create a lifecycle policy to transition the S3 objects to Amazon S3 Glacier
C. Order 10 AWS Snowball appliances and select an Amazon S3 bucket as the destination. Create a lifecycle policy to transition the S3 objects to Amazon S3 Glacier
D. Order 10 AWS Snowball appliances and select an S3 Glacier vault as the destination Create a bucket policy to enforce a VPC endpoint

Antwort: C

Begründung:
Explanation
Regional Limitations for AWS Snowball
The AWS Snowball service has two device types, the standard Snowball and the Snowball Edge. The following table highlights which of these devices are available in which regions.

Limitations on Jobs in AWS Snowball
The following limitations exist for creating jobs in AWS Snowball:
For security purposes, data transfers must be completed within 90 days of the Snowball being prepared.
Currently, AWS Snowball Edge device doesn't support server-side encryption with customer-provided keys (SSE-C). AWS Snowball Edge device does support server-side encryption with Amazon S3-managed encryption keys (SSE-S3) and server-side encryption with AWS Key Management Service-managed keys (SSE-KMS). For more information, see Protecting Data Using Server-Side Encryption in the Amazon Simple Storage Service Developer Guide.
In the US regions, Snowballs come in two sizes: 50 TB and 80 TB. All other regions have the 80 TB Snowballs only. If you're using Snowball to import data, and you need to transfer more data than will fit on a single Snowball, create additional jobs. Each export job can use multiple Snowballs.
The default service limit for the number of Snowballs you can have at one time is 1. If you want to increase your service limit, contact AWS Support.
All objects transferred to the Snowball have their metadata changed. The only metadata that remains the same is filename and filesize. All other metadata is set as in the following example: -rw-rw-r-- 1 root root [filesize] Dec 31 1969 [path/filename] Object lifecycle management To manage your objects so that they are stored cost effectively throughout their lifecycle, configure their Amazon S3 Lifecycle. An S3 Lifecycle configuration is a set of rules that define actions that Amazon S3 applies to a group of objects. There are two types of actions:
Transition actions-Define when objects transition to another storage class. For example, you might choose to transition objects to the S3 Standard-IA storage class 30 days after you created them, or archive objects to the S3 Glacier storage class one year after creating them.
Expiration actions-Define when objects expire. Amazon S3 deletes expired objects on your behalf.
The lifecycle expiration costs depend on when you choose to expire objects.
https://docs.aws.amazon.com/snowball/latest/ug/limits.html
https://docs.aws.amazon.com/AmazonS3/latest/dev/object-lifecycle-mgmt.html

219. Frage
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