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| Certification Vendor: | Amazon AWS |
|---|---|
| Exam Name: | AWS Certified Solutions Architect - Professional |
| Exam Number: | SAP-C02 |
| Certificate Validity Period: | 3 years |
| Exam Price: | 300 USD |
| Real Exam Qty: | 75 (65 scored, 10 unscored) |
| Available Languages: | Japanese, Simplified Chinese, Korean, English, Spanish (Latin America), Portuguese (Brazil) |
| Related Certifications: | AWS Certified DevOps Engineer - Professional AWS Certified Solutions Architect - Associate AWS Certified Security - Specialty |
| Exam Format: | Multiple response, Scenario-based questions, Multiple choice |
| Exam Duration: | 180 minutes |
| Passing Score: | 750 (scaled score 100–1000) |
| Recommended Training: | AWS Training and Certification AWS Official Exam Guide |
| Exam Registration: | Pearson VUE AWS Official Registration |
| Sample Questions: | Amazon SAP-C02 Sample Questions |
| Exam Way: | Online proctored or onsite testing at authorized centers (Pearson VUE, PSI) |
| Pre Condition: | No mandatory prerequisites; recommended: 2+ years of hands-on experience designing and implementing cloud solutions on AWS, AWS Certified Solutions Architect - Associate certification |
| Official Syllabus URL: | https://docs.aws.amazon.com/aws-certification/latest/examguides/solutions-architect-professional-02.html |
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問題 #343
A company hosts a large application on AWS. The application consists of several containerized microservices that run in Amazon ECS containers with the AWS Fargate launch type. Each microservice stores data in a separate Amazon Aurora PostgreSQL DB cluster that consists of one instance. The company requires all data to reside in a single AWS Region.
During a recent application update, one microservice increased the number of read operations. The increase had a major performance impact on the database, causing several microservices' write operations to fail. The company must address the performance issues and prevent negative impacts on write operations in the future.
Which solution will meet these requirements?
答案：D
解題說明：
Aurora Auto Scaling dynamically changes the number of Aurora Replicas as read demand changes, while the reader endpoint balances read-only connections across those replicas. This offloads read traffic from the primary writer, preventing increased reads from competing with write operations. AWS recommends using the reader endpoint so applications can automatically benefit from newly created replicas. A global database is intended primarily for cross-Region replication and conflicts with the single-Region requirement. RDS Proxy pools and reuses connections, but option C does not direct reads to separate replicas. Aurora normally has one primary writer in this architecture, so adding another writer as described is not a valid read-scaling design. Therefore, Auto Scaling with the reader endpoint directly addresses the performance problem. AWS Aurora Auto Scaling documentation
問題 #344
A company is planning to migrate its on-premises transaction-processing application to AWS. The application runs inside Docker containers that are hosted on VMS in the company's data center. The Docker containers have shared storage where the application records transaction data.
The transactions are time sensitive. The volume of transactions inside the application is unpredictable. The company must implement a low-latency storage solution that will automatically scale throughput to meet increased demand. The company cannot develop the application further and cannot continue to administer the Docker hosting environment.
How should the company migrate the application to AWS to meet these requirements?
答案：C
解題說明：
Explanation
Migrating the containers that run the application to AWS Fargate for Amazon Elastic Container Service (Amazon ECS) will meet the requirement of not administering the Docker hosting environment. AWS Fargate is a serverless compute engine that runs containers without requiring any infrastructure management3.
Creating an Amazon Elastic File System (Amazon EFS) file system and adding a volume to the Fargate task definition to point to the EFS file system will meet the requirement of low-latency storage that will automatically scale throughput to meet increased demand. Amazon EFS is a fully managed file system service that provides shared access to data from multiple containers, supports NFSv4 protocol, and offers consistent performance and high availability4. Amazon EFS also supports automatic scaling of throughput based on the amount of data stored in the file system5.
問題 #345
A company is planning to migrate 1,000 on-premises servers to AWS. The servers run on several VMware clusters in the company's data center. As part of the migration plan, the company wants to gather server metrics such as CPU details, RAM usage, operating system information, and running processes. The company then wants to query and analyze the data.
Which solution will meet these requirements?
答案：D
解題說明：
Explanation
The Agentless Discovery Connector is a virtual appliance that can be deployed on-premises to automatically discover the servers, applications, and network infrastructure in the data center. It can collect server metrics such as CPU details, RAM usage, operating system information, and running processes. The data collected can then be used in AWS Migration Hub to track the migration progress and identify dependencies.
AWS Glue can be used to perform an ETL job on the data collected by the Agentless Discovery Connector to prepare the data for analysis. The data can then be stored in Amazon S3 and queried using Amazon S3 Select, which allows you to retrieve specific data from a S3 object.
AWS Migration Hub provides a centralized place to track and monitor the progress of an application migration. The service allow you to track on-premises and cloud-based resources, and it provides a holistic view of your migration progress.
Reference:
https://aws.amazon.com/migration-hub/
https://aws.amazon.com/discovery-connector/
https://aws.amazon.com/glue/
https://aws.amazon.com/s3/features/select/
問題 #346
A company is hosting a critical application on a single Amazon EC2 instance. The application uses an Amazon ElastiCache for Redis single-node cluster for an in-memory data store. The application uses an Amazon RDS for MariaDB DB instance for a relational database. For the application to function, each piece of the infrastructure must be healthy and must be in an active state.
A solutions architect needs to improve the application's architecture so that the infrastructure can automatically recover from failure with the least possible downtime.
Which combination of steps will meet these requirements? (Select THREE.)
答案：A,C,D
解題說明：
Option A is correct because using an Elastic Load Balancer and an Auto Scaling group with a minimum capacity of two instances can improve the availability and scalability of the EC2 instances that host the application. The load balancer can distribute traffic across multiple instances and the Auto Scaling group can replace any unhealthy instances automatically1 Option D is correct because modifying the DB instance to create a Multi-AZ deployment that extends across two Availability Zones can improve the availability and durability of the RDS for MariaDB database. Multi-AZ deployments provide enhanced data protection and minimize downtime by automatically failing over to a standby replica in another Availability Zone in case of a planned or unplanned outage4 Option F is correct because creating a replication group for the ElastiCache for Redis cluster and enabling Multi-AZ on the cluster can improve the availability and fault tolerance of the in-memory data store. A replication group consists of a primary node and up to five read-only replica nodes that are synchronized with the primary node using asynchronous replication. Multi-AZ allows automatic failover to one of the replicas if the primary node fails or becomes unreachable6 References: 1:
https://docs.aws.amazon.com/elasticloadbalancing/latest/userguide/how-elastic-load-balancing-works.html 2:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/burstable-performance-instances-unlimited-mode.html
3: https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_ReadRepl.html 4:
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.MultiAZ.html 5:
https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/AutoScaling.html 6:
https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Replication.Redis.Groups.html
問題 #347
A company runs an application on an Amazon EC2 instance in a private VPC. The application accesses data from an Amazon S3 bucket. Currently, the application has outbound internet access through existing NAT gateways.
The company establishes an AWS Site-to-Site VPN connection from the company's on-premises office to the VPC. The company wants both the application and the on-premises users to access the S3 bucket without traversing the public internet. The company also wants to remove the NAT gateways.
Which solution will meet these requirements?
答案：A
解題說明：
Comprehensive and Detailed Explanation:
This question tests knowledge of private access patterns to Amazon S3 from:
resources inside a VPC, and
users in an on-premises environment connected through Site-to-Site VPN.
The correct answer is B because the company has two different traffic sources with different endpoint requirements.
Why B is correct
For the EC2 instance inside the private VPC:
An S3 gateway endpoint is the standard and most cost-effective method for private access from resources in the VPC to Amazon S3. With a gateway endpoint, traffic from the VPC to S3 stays on the AWS network and does not require a NAT gateway or internet gateway. This satisfies the requirement to remove the NAT gateways for the application's S3 access.
For the on-premises users over the Site-to-Site VPN:
Gateway endpoints are for use within the VPC and are not accessed from on-premises networks over VPN or Direct Connect. To allow on-premises clients to access S3 privately through the VPC, the architecture needs an S3 interface endpoint with private DNS enabled. Interface endpoints create elastic network interfaces in the VPC and can be reached privately from connected on-premises environments, assuming routing and DNS are configured correctly.
Therefore, the combination is required:
S3 gateway endpoint for VPC resources
S3 interface endpoint with private DNS for on-premises access through VPN This design allows both the EC2 application and on-premises users to access S3 without using the public internet.
Why A is incorrect
An S3 gateway endpoint works for VPC resources, but it does not provide private access for on-premises users over Site-to-Site VPN. On-premises networks cannot route directly to a gateway endpoint in the way described. That makes A incomplete and incorrect.
Why C is incorrect
Mountpoint for Amazon S3 is a way to mount an S3 bucket for file-like access from an EC2 instance or similar compute environment. It does not solve the connectivity requirement for on-premises users, and it does not address the broader network design requirement of private S3 access without NAT gateways for all stated users. It also does not replace the need for appropriate VPC endpoint architecture.
Why D is incorrect
Storage Browser for S3 is not the solution to provide private network connectivity for an application and on- premises users. It is unrelated to the core architecture requirement. The question is asking about private access paths to S3, not a user interface or client-side browser tool.
Key design principle being tested
This question checks whether you know the distinction between:
S3 gateway endpoints for traffic originating from within the VPC
S3 interface endpoints for private access from on-premises environments over hybrid connectivity It also tests whether you understand that removing NAT gateways is possible for S3 access from private subnets when a VPC endpoint is used.
Final justification
Because the company needs:
private S3 access from an EC2 instance in a private VPC, and
private S3 access from on-premises users over VPN,
while removing NAT gateways,
the correct design is to use:
an S3 gateway endpoint for the VPC application, and
an S3 interface endpoint with private DNS for the on-premises users.
That makes B the best answer.
References:
AWS Certified Solutions Architect - Professional (SAP-C02) Exam Guide
Amazon VPC documentation for gateway endpoints
Amazon VPC documentation for interface endpoints
Amazon S3 private access patterns documentation
AWS Site-to-Site VPN documentation
AWS Certified Solutions Architect - Professional Official Study Guide
問題 #348
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