AWS-Solutions-Associate認定資格、AWS-Solutions-Associate全真模擬試験

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Amazon AWS-Solutions-Associate Exam Syllabus Topics:

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

>> AWS-Solutions-Associate認定資格 <<

Amazon AWS-Solutions-Associate全真模擬試験、AWS-Solutions-Associate資格講座

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Amazon AWS Certified Solutions Architect - Associate (SAA-C03) 認定 AWS-Solutions-Associate 試験問題 (Q263-Q268):

質問 # 263
A company hosts a popular web application. The web application connects to a database running in a private VPC subnet. The web servers must be accessible only to customers on an SSL connection. The RDS MySQL database server must be accessible only from the web servers.
How should the Architect design a solution to meet the requirements without impacting running applications?

A. Open the MySQL port on the security group for web servers and set the source to 0.0.0.0/0. Open the HTTPS port on the database security group and attach it to the MySQL instance. Set the source to Web Server Security Group.
B. Create a network ACL on the web server's subnet, and allow HTTPS inbound, and specify the source as 0.0.0.0/0. Create a network ACL on a database subnet, allow MySQL port inbound for web servers, and deny all outbound traffic.
C. Open an HTTPS port on the security group for web servers and set the source to 0.0.0.0/0. Open the MySQL port on the database security group and attach it to the MySQL instance. Set the source to Web Server Security Group.
D. Create a network ACL on the web server's subnet, and allow HTTPS inbound and MySQL outbound.
Place both database and web servers on the same subnet.

正解：C

質問 # 264
A company is building a voting system for a popular TV show, viewers win watch the performances then visit the show's website to vote for their favorite performer. It is expected that in a short period of time after the show has finished the site will receive millions of visitors. The visitors will first login to the site using their Amazon.com credentials and then submit their vote. After the voting is completed the page will display the vote totals. The company needs to build the site such that can handle the rapid influx of traffic while maintaining good performance but also wants to keep costs to a minimum.
Which of the design patterns below should they use?

A. Use CloudFront and an Elastic Load Balancer in front of an auto-scaled set of web servers, the web servers will first call the Login With Amazon service to authenticate the user, the web servers win process the users vote and store the result into an SQS queue using IAM Roles for EC2 Instances to gain permissions to the SQS queue. A set of application servers will then retrieve the items from the queue and store the result into a DynamoDB table.
B. Use CloudFront and the static website hosting feature of S3 with the Javascript SDK to call the Login With Amazon service to authenticate the user, use IAM Roles to gain permissions to a DynamoDB table to store the users vote.
C. Use CloudFront and an Elastic Load Balancer in front of an auto-scaled set of web servers, the web servers will first call the Login with Amazon service to authenticate the user, the web servers will process the users vote and store the result into a DynamoDB table using IAM Roles for EC2 instances to gain permissions to the DynamoDB table.
D. Use CloudFront and an Elastic Load balancer in front of an auto-scaled set of web servers, the web servers will first call the Login With Amazon service to authenticate the user then process the users vote and store the result into a multi-AZ Relational Database Service instance.

正解：A

質問 # 265
A company is migrating five on-premises applications to VPCs in the AWS Cloud. Each application is currently deployed in isolated virtual networks on premises and should be deployed similarly in the AWS Cloud. The applications need to reach a shared services VPC. All the applications must be able to communicate with each other.
If the migration is successful, the company will repeat the migration process for more than 100 applications.
Which solution will meet these requirements with the LEAST administrative overhead?

A. Deploy a transit gateway with associations between the transit gateway and the application VPCs and the shared services VPC Add routes between the application VPCs in their subnets and the application VPCs to the shared services VPC through the transit gateway.
B. Deploy software VPN tunnels between the application VPCs and the shared services VPC. Add routes between the application VPCs in their subnets to the shared services VPC.
C. Deploy VPC peering connections between the application VPCs and the shared services VPC. Add routes between the application VPCs in their subnets to the shared services VPC through the peering connection.
D. Deploy an AWS Direct Connect connection between the application VPCs and the shared services VPC. Add routes from the application VPCs in their subnets to the shared services VPC and the applications VPCs. Add routes from the shared services VPC subnets to the applications VPCs.

正解：A

解説：
Understanding the Requirement: The company needs to migrate applications to AWS, maintaining isolated networks while allowing communication with a shared services VPC and among the applications.
Analysis of Options:
Software VPN Tunnels: This approach involves high administrative overhead and complexity in managing multiple VPN connections.
VPC Peering: While suitable for smaller numbers of VPCs, it becomes complex and hard to manage at scale with over 100 applications.
Direct Connect: Primarily used for high-bandwidth, low-latency connections to on-premises networks, not inter-VPC communication.
Transit Gateway: Simplifies network management by acting as a central hub, allowing easy routing and scalability as more applications are migrated.
Best Solution:
Transit Gateway: This provides a scalable, efficient solution with minimal administrative overhead for managing network connections between multiple VPCs and the shared services VPC.
References:
AWS Transit Gateway
Building a Transit Gateway

質問 # 266
What is the data model of DynamoDB?

A. "Items", with Keys and one or more Attribute; and "Attribute", with Name and Value.
B. "Database", which is a set of "Tables", which is a set of "Items", which is a set of "Attributes".
C. "Table", a collection of Items; "Items", with Keys and one or more Attribute; and "Attribute", with Name and Value.
D. Since DynamoDB is schema-less, there is no data model.

正解：C

解説：
The data model of DynamoDB is:
"Table", a collection of Items;
"Items", with Keys and one or more Attribute;
"Attribute", with Name and Value.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModel.html

質問 # 267
A company's reporting system delivers hundreds of .csv files to an Amazon S3 bucket each day. The company must convert these files to Apache Parquet format and must store the files in a transformed data bucket.
Which solution will meet these requirements with the LEAST development effort?

A. Use AWS Batch to create a job definition with Bash syntax to transform the data and output the data to the transformed data bucket. Use the job definition to submit a job. Specify an array job as the job type.
B. Create an Amazon EMR cluster with Apache Spark installed. Write a Spark application to transform the data. Use EMR File System (EMRFS) to write files to the transformed data bucket.
C. Create an AWS Glue crawler to discover the data. Create an AWS Glue extract, transform, and load (ETL) job to transform the data. Specify the transformed data bucket in the output step.
D. Create an AWS Lambda function to transform the data and output the data to the transformed data bucket. Configure an event notification for the S3 bucket. Specify the Lambda function as the destination for the event notification.

正解：C

解説：
https://docs.aws.amazon.com/prescriptive-guidance/latest/patterns/three-aws-glue-etl-job-types-for-converting-d

質問 # 268
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