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Amazon SAA-C03 Certification Exam is a highly sought-after certification for IT professionals seeking to demonstrate their expertise in designing and deploying scalable, highly available, and fault-tolerant systems on Amazon Web Services (AWS) cloud platform. AWS Certified Solutions Architect - Associate certification exam is designed to validate the candidate's ability to architect and deploy secure and robust applications on the AWS platform, using best practices and industry-standard techniques.

Amazon SAA-C03 certification exam is designed for individuals who want to become skilled in the design and deployment of scalable, fault-tolerant, and highly available systems on Amazon Web Services (AWS) cloud. AWS Certified Solutions Architect - Associate certification is ideal for solution architects, system administrators, and developers who want to validate their knowledge and expertise in AWS infrastructure, services, and best practices. The SAA-C03 Exam is the updated version of the previous SAA-C02 certification exam and is considered one of the most sought-after certifications in the cloud computing industry.

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Amazon AWS Certified Solutions Architect - Associate Sample Questions (Q153-Q158):

NEW QUESTION # 153
A company is running a multi-tier recommence web application in the AWS Cloud. The application runs on Amazon EC2 instances with an Amazon RDS for MySQL Multi-AZ OB instance. Amazon ROS is configured with the latest generation DB instance with 2.000 GB of storage In a General Purpose SSD (gp3) Amazon Elastic Block Store (Amazon EBSl volume. The database performance affects the application during periods high demand.
A database administrator analyzes the logs in Amazon CloudWatch Logs and discovers that the application performance always degrades when the number of read and write IOPS is higher than 20.000.
What should a solutions architect do to improve the application performance?

A. Replace the volume with a magnetic volume.
B. Increase the number of IOPS on the gp3 volume.
C. Replace the 2.000 GB gp3 volume with two 1.000 GB gp3 volumes
D. Replace the volume with a Provisioned IOPS SSD (Io2) volume.

Answer: D

NEW QUESTION # 154
A company is migrating an online marketplace application from a mainframe system to an Auto Scaling group of Amazon EC2 instances. The EC2 instances access an Amazon Aurora cluster. The application requires a scalable, persistent caching solution to store the results of in-progress transactions and SQL queries.

A. Use an Amazon ElastiCache (Redis OSS) cluster to serve transaction and query results.
B. Use an Amazon ElastiCache (Redis OSS) cluster to cache the transactions. Add an Amazon EC2 instance store volume to the EC2 instances for query result caching.
C. Use an Amazon ElastiCache (Memcached) cluster to serve transaction and query results.
D. Use an Amazon CloudFront distribution with an Amazon S3 bucket as the origin to cache the transactions. Add an Amazon EC2 instance store volume to the EC2 instances for query result caching.

Answer: A

Explanation:
Why Option A is Correct:
* ElastiCache for Redis: Provides persistent, scalable caching for in-progress transactions and SQL queries. Redis supports data durability and advanced features, making it suitable for transactional workloads.
* Integration with Aurora: Easily integrates with the Aurora cluster to improve query performance.
Why Other Options Are Not Ideal:
* Option B: CloudFront and S3 are unsuitable for transactional caching. EC2 instance store volumes are ephemeral and lack persistence.
* Option C: Memcached does not offer persistence or advanced transactional support, unlike Redis.
* Option D: Combining Redis with EC2 instance store is unnecessary; Redis alone meets all caching requirements.
AWS References:
* Amazon ElastiCache:AWS Documentation - ElastiCache

NEW QUESTION # 155
An application that is hosted on Amazon EC2 instances needs to access an Amazon S3 bucket Traffic must not traverse the internet How should a solutions architect configure access to meet these requirements?

A. Create a private hosted zone by using Amazon Route 53
B. Configure the EC2 instances to use a NAT gateway to access the S3 bucket
C. Set up a gateway VPC endpoint for Amazon S3 in the VPC
D. Establish an AWS Site-to-Site VPN connection between the VPC and the S3 bucket

Answer: C

Explanation:
This option is the most efficient because it uses a gateway VPC endpoint for Amazon S3, which provides reliable connectivity to Amazon S3 without requiring an internet gateway or a NAT device for the VPC1. A gateway VPC endpoint routes traffic from the VPC to Amazon S3 using a prefix list for the service and does not leave the AWS network2. This meets the requirement of not traversing the internet. Option A is less efficient because it uses a private hosted zone by using Amazon Route 53, which is a DNS service that allows you to create custom domain names for your resources within your VPC3. However, this does not provide connectivity to Amazon S3 without an internet gateway or a NAT device. Option C is less efficient because it uses a NAT gateway to access the S3 bucket, which is a highly available, managed Network Address Translation (NAT) service that enables instances in a private subnet to connect to the internet or other AWS services, but prevents the internet from initiating a connection with those instances4. However, this does not meet the requirement of not traversing the internet. Option D is less efficient because it uses an AWS Site-to-Site VPN connection between the VPC and the S3 bucket, which is a secure and encrypted network connection between your on-premises network and your VPC. However, this does not meet the requirement of not traversing the internet.

NEW QUESTION # 156
A company needs to accelerate the performance of its AI-powered medical diagnostic application by running its machine learning workloads on the edge of telecommunication carriers' 5G networks. The application must be deployed to a Kubernetes cluster and have role-based access control (RBAC) access to IAM users and roles for cluster authentication.
Which of the following should the Solutions Architect implement to ensure single-digit millisecond latency for the application?

A. Host the application to an Amazon Elastic Kubernetes Service (Amazon EKS) cluster. Set up node groups in AWS Wavelength Zones for the Amazon EKS cluster. Attach the Amazon EKS connector agent role (AmazonECSConnectorAgentRole) to your cluster and use AWS Control Tower for RBAC access.
B. Launch the application to an Amazon Elastic Kubernetes Service (Amazon EKS) cluster. Create node groups in Wavelength Zones for the Amazon EKS cluster via the AWS Wavelength service. Apply the AWS authenticator configuration map (aws-auth ConfigMap) to your cluster.
C. Launch the application to an Amazon Elastic Kubernetes Service (Amazon EKS) cluster. Create VPC endpoints for the AWS Wavelength Zones and apply them to the Amazon EKS cluster. Install the AWS IAM Authenticator for Kubernetes (aws-iam-authenticator) to your cluster.
D. Host the application to an Amazon EKS cluster and run the Kubernetes pods on AWS Fargate. Create node groups in AWS Wavelength Zones for the Amazon EKS cluster. Add the EKS pod execution IAM role (AmazonEKSFargatePodExecutionRole) to your cluster and ensure that the Fargate profile has the same IAM role as your Amazon EC2 node groups.

Answer: B

Explanation:
AWS Wavelength combines the high bandwidth and ultralow latency of 5G networks with AWS compute and storage services so that developers can innovate and build a new class of applications. Wavelength Zones are AWS infrastructure deployments that embed AWS compute and storage services within telecommunications providers' data centers at the edge of the 5G network, so application traffic can reach application servers running in Wavelength Zones without leaving the mobile providers' network.
This prevents the latency that would result from multiple hops to the internet and enables customers to take full advantage of 5G networks. Wavelength Zones extend AWS to the 5G edge, delivering a consistent developer experience across multiple 5G networks around the world. Wavelength Zones also allow developers to build the next generation of ultra-low latency applications using the same familiar AWS services, APIs, tools, and functionality they already use today.

Amazon EKS uses IAM to provide authentication to your Kubernetes cluster, but it still relies on native Kubernetes Role-Based Access Control (RBAC) for authorization. This means that IAM is only used for the authentication of valid IAM entities. All permissions for interacting with your Amazon EKS cluster's Kubernetes API are managed through the native Kubernetes RBAC system.
Access to your cluster using AWS Identity and Access Management (IAM) entities is enabled by the AWS IAM Authenticator for Kubernetes, which runs on the Amazon EKS control plane. The authenticator gets its configuration information from the aws-auth ConfigMap (AWS authenticator configuration map). The aws-auth ConfigMap is automatically created and applied to your cluster when you create a managed node group or when you create a node group using eksctl. It is initially created to allow nodes to join your cluster, but you also use this ConfigMap to add role-based access control (RBAC) access to IAM users and roles.
Hence, the correct answer is: Launch the application to an Amazon Elastic Kubernetes Service (Amazon EKS) cluster. Create node groups in Wavelength Zones for the Amazon EKS cluster via the AWS Wavelength service. Apply the AWS authenticator configuration map (aws-auth ConfigMap) to your cluster.
The option that says: Host the application to an Amazon Elastic Kubernetes Service (Amazon EKS) cluster. Set up node groups in AWS Wavelength Zones for the Amazon EKS cluster. Attach the Amazon EKS connector agent role (AmazonECSConnectorAgentRole) to your cluster and use AWS Control Tower for RBAC access is incorrect. An Amazon EKS connector agent is only used to connect your externally hosted Kubernetes clusters and to allow them to be viewed in your AWS Management Console. The AWS Control Tower doesn't provide RBAC access too to your EKS cluster. This service is commonly used for setting up a secure multi-account AWS environment and not for providing cluster authentication using IAM users and roles.
The option that says: Launch the application to an Amazon Elastic Kubernetes Service (Amazon EKS) cluster. Create VPC endpoints for the AWS Wavelength Zones and apply them to the Amazon EKS cluster. Install the AWS IAM Authenticator for Kubernetes (aws-iam-authenticator) to your cluster is incorrect because you cannot create VPC Endpoints in AWS Wavelength Zones. In addition, it is more appropriate to apply the AWS authenticator configuration map (aws-auth ConfigMap) to your Amazon EKS cluster to enable RBAC access.
The option that says: Host the application to an Amazon EKS cluster and run the Kubernetes pods on AWS Fargate. Create node groups in AWS Wavelength Zones for the Amazon EKS cluster. Add the EKS pod execution IAM role (AmazonEKSFargatePodExecutionRole) to your cluster and ensure that the Fargate profile has the same IAM role as your Amazon EC2 node groups is incorrect. Although this solution is possible, the security configuration of the Amazon EKS control plane is wrong. You have to ensure that the Fargate profile has a different IAM role as your Amazon EC2 node groups and not the other way around.
References:
https://aws.amazon.com/wavelength/
https://docs.aws.amazon.com/eks/latest/userguide/add-user-role.html#aws-auth-configmap
https://docs.aws.amazon.com/eks/latest/userguide/cluster-auth.html

NEW QUESTION # 157
A business application is hosted on Amazon EC2 and uses Amazon S3 for encrypted object storage. The chief information security officer has directed that no application traffic between the two services should traverse the public internet.
Which capability should the solutions architect use to meet the compliance requirements?

A. Virtual private gateway
B. VPC endpoint
C. Private subnet
D. AWS Key Management Service (AWS KMS)

Answer: B

Explanation:
https://docs.aws.amazon.com/vpc/latest/privatelink/vpc-endpoints.html

NEW QUESTION # 158
......

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