AWS Certified Solutions Architect Professional AWS Certified Solutions Architect Professional Free Practice Test — 30 Questions

Question 1

A multinational financial services firm is migrating its customer data lake to AWS. The data lake resides in Amazon S3 and contains sensitive Personally Identifiable Information (PII) and financial transaction records. Several internal teams require access: a development team for schema evolution and testing, an analytics team for business intelligence reporting, and a security operations team for auditing and incident response. Adherence to stringent financial regulations (e.g., PCI DSS, SOX) mandates robust access control, the principle of least privilege, and comprehensive audit trails for all data access. The firm needs a solution that allows for distinct, fine-grained permissions at the table and column level, while ensuring all data access events are logged for compliance. Which architectural approach best satisfies these requirements?

Accepted Answer

Implement AWS Lake Formation to manage data catalog and permissions, granting specific IAM roles to each team with granular table and column-level access controls defined within Lake Formation, and configure AWS CloudTrail for comprehensive auditing of all AWS API calls and data access events.

Question 2

A global financial services firm is undertaking a significant digital transformation initiative to modernize its core banking platform. The existing on-premises application is a monolithic architecture with a large relational database. The firm has strict regulatory obligations requiring all customer financial data to reside exclusively within the European Union. Furthermore, the application serves a diverse customer base across Germany and France, necessitating low-latency access to transactional data for optimal user experience. The firm aims for a phased migration to minimize operational risk and allow for independent scaling of different application functionalities. Which migration strategy best aligns with these complex requirements, prioritizing data residency, low-latency access, and a gradual transition?

Accepted Answer

Adopt a hybrid migration strategy by containerizing stateless components and deploying them to Amazon Elastic Kubernetes Service (EKS) in multiple EU regions for low-latency access, while migrating stateful components and sensitive data to Amazon EC2 instances in a primary EU region, using Amazon FSx for NetApp ONTAP for shared file system access with data residency compliance, and leveraging AWS Database Migration Service (DMS) for migrating the database to Amazon Aurora PostgreSQL in the primary EU region, ensuring all data remains within the EU.

Question 3

A global financial services firm is experiencing a significant increase in transaction volumes due to a new market expansion. They require a solution to ingest, process, and analyze these real-time transactions with low latency. A critical requirement is to ensure that all data originating from European Union customers is processed and stored exclusively within AWS Regions located in the EU, adhering to stringent data residency mandates. The architecture must be highly available, scalable, and secure, capable of handling unpredictable spikes in traffic. Which combination of AWS services would best meet these requirements for real-time processing, data residency, scalability, and security?

Accepted Answer

Amazon Kinesis Data Streams for ingestion, AWS Lambda for processing, Amazon S3 for data storage with Region-specific bucket policies, and AWS IAM for access control.

Question 4

A rapidly growing technology firm is adopting a multi-account AWS strategy to isolate workloads and enhance security. A new cross-functional engineering team has been established to develop and manage a critical microservice. This team requires access to provision and manage EC2 instances and S3 buckets specifically for their project within a designated development account. They do not need access to any other AWS services or resources within this account, nor do they require elevated privileges beyond their project\'s scope. The firm utilizes AWS IAM Identity Center for centralized access management across its AWS accounts. What is the most effective and secure method to grant this team the required permissions?

Accepted Answer

Create a custom permission set within AWS IAM Identity Center that grants specific `Create`, `Read`, `Update`, and `Delete` actions for EC2 and S3 resources, scoped to the project's designated resources.

Question 5

A global financial services organization, operating under stringent data sovereignty regulations within the Asia-Pacific (APAC) region, is encountering substantial latency issues for its end-users accessing critical, real-time trading applications. These applications are currently hosted in a primary AWS Region located outside of APAC. The firm needs a solution that not only drastically reduces user-perceived latency but also ensures all customer data remains physically within the APAC geographical boundaries, as mandated by local compliance authorities. The proposed solution must also maintain a secure and highly available connection to the core AWS infrastructure for management and occasional data synchronization. Which architectural approach would best address these multifaceted requirements, demonstrating adaptability to regional needs and a commitment to customer experience?

Accepted Answer

Deploy AWS Outposts within a co-location facility in the APAC region, leveraging AWS Direct Connect for a private, high-bandwidth connection to the primary AWS Region, and host the trading application components and data on these Outposts.

Question 6

A multinational corporation, operating under diverse regional data sovereignty laws, needs to distribute critical operational configuration parameters to various business units across different AWS regions. The company utilizes AWS Organizations and has established a landing zone via AWS Control Tower. The goal is to ensure that each business unit only accesses parameters relevant to its specific region and operational scope, with all sensitive data encrypted using customer-managed keys that are regionally bound. Which combination of AWS services and configurations best addresses these requirements for secure, compliant, and granular data distribution?

Accepted Answer

Utilize AWS Systems Manager Parameter Store with regionally bound KMS Customer Managed Keys (CMKs) for parameter encryption, coupled with IAM policies that grant access based on account ID, parameter path (reflecting region and business unit), and KMS key usage. AWS Control Tower's Account Factory can be leveraged to provision accounts with pre-configured IAM roles and parameter store access policies.

Question 7

A global e-commerce platform, built on AWS, experiences peak traffic from users across North America, Europe, and Asia. The application relies heavily on maintaining user session state to personalize experiences and manage shopping carts. To ensure a seamless and responsive user journey, the solutions architect must implement a strategy that minimizes latency for session data access in each region and provides high availability, even in the event of a regional service disruption. The solution must also be capable of handling a significant increase in concurrent user sessions without performance degradation, and consider potential future regulatory mandates regarding data residency for certain user segments. Which AWS service configuration best addresses these requirements?

Accepted Answer

Amazon ElastiCache for Redis configured with Global Datastore across the primary regions for North America, Europe, and Asia, utilizing Redis Cluster mode for sharding.

Question 8

A financial services company is migrating its critical transaction processing system to AWS. The system must ingest high volumes of sensitive customer data, perform several complex transformations, and then store the results in a secure, auditable data lake. The architecture must be highly available, fault-tolerant, and comply with strict data residency and encryption regulations. If any processing step fails, the system must be able to retry the operation or gracefully handle the failure without data loss, ensuring that all transactions are eventually processed. The solution needs to provide clear visibility into the state of each transaction throughout its lifecycle.

Which AWS services, when combined, would best address these requirements for orchestrating the data pipeline and ensuring resilience?

Accepted Answer

AWS Step Functions to orchestrate the workflow, AWS Lambda for processing logic, Amazon S3 for data storage, AWS Key Management Service (KMS) for encryption, and Amazon Simple Queue Service (SQS) for buffering and error handling between steps.

Question 9

A financial services firm is undertaking a critical initiative to modernize its core banking application by migrating from a legacy monolithic architecture to a microservices-based design hosted on AWS. The primary objective is to enhance agility and scalability while ensuring zero downtime and maintaining strict adherence to financial data regulatory compliance, including data integrity and access controls. The firm\'s existing database is a proprietary relational system, and the target architecture will leverage Amazon RDS for PostgreSQL. The migration must preserve transactional consistency and provide a clear rollback path. Which AWS migration strategy and supporting services would best facilitate this transition while meeting all stated requirements?

Accepted Answer

Implement a phased strangler fig pattern using Amazon API Gateway for traffic routing, AWS Database Migration Service (DMS) with continuous replication for data, and AWS CodeDeploy for microservice deployments, coupled with a comprehensive IAM strategy for granular access control to sensitive financial data.

Question 10

A global financial services firm operates a mission-critical trading platform on AWS, primarily hosted in the us-east-1 region. The application relies on a relational database for transaction processing and customer data. During a recent, unexpected, and prolonged AWS service disruption affecting us-east-1, the platform experienced significant performance degradation, leading to intermittent transaction failures and concerns about data integrity. The firm requires a solution that ensures minimal downtime and prevents data loss in the event of a similar regional outage, while also accommodating users across different continents with low latency access.

Accepted Answer

Implement an Amazon Aurora Global Database with read replicas in a secondary region, configure Amazon Route 53 latency-based routing to direct traffic to the healthy secondary region during an outage, and ensure application servers are also deployed in the secondary region.

Question 11

A global e-commerce enterprise is encountering severe performance bottlenecks and intermittent outages on its AWS-hosted microservices-based platform, impacting customer experience. The architecture includes API Gateway, AWS Lambda functions, and EC2 instances within Auto Scaling Groups. A critical marketing campaign is scheduled to launch in two weeks, requiring a highly available and performant platform to handle anticipated traffic surges. The current monitoring strategy is fragmented, with logs and metrics scattered across various services, hindering effective root cause analysis and proactive issue resolution. What integrated AWS observability strategy should the solutions architect implement to provide end-to-end visibility, detect anomalies, and facilitate rapid troubleshooting to ensure the campaign\'s success?

Accepted Answer

Implement AWS X-Ray for distributed tracing, CloudWatch Application Insights for anomaly detection and root cause analysis, Amazon OpenSearch Service for centralized log aggregation and analysis, and AWS Config for configuration change auditing.

Question 12

A global e-commerce platform, operating on AWS, is experiencing a noticeable degradation in user experience, characterized by increased page load times and occasional failures during peak traffic periods. The current infrastructure comprises Amazon EC2 instances for the application tier, an Application Load Balancer, and Amazon RDS for the database. While basic CloudWatch metrics are monitored, the engineering team lacks detailed visibility into the flow of requests across different microservices and the specific components contributing to latency. Furthermore, troubleshooting intermittent errors has become a time-consuming process due to fragmented logging and metric data. Which combination of AWS services would provide the most comprehensive observability to diagnose and resolve these issues effectively?

Accepted Answer

AWS X-Ray, AWS Distro for OpenTelemetry (ADOT), and Amazon CloudWatch Application Insights

Question 13

A multinational corporation, \"Aethelred Dynamics,\" is migrating its sensitive customer data to AWS, distributing it across several AWS accounts within a single AWS Organization. To comply with stringent data protection regulations, such as GDPR\'s principles of data integrity and confidentiality, they must ensure that critical customer data stored in specific Amazon S3 buckets remains immutable and protected from accidental or malicious deletion or modification by any user, including those with administrative roles within individual accounts. The company utilizes AWS IAM Identity Center for centralized user authentication and authorization. Which architectural approach best enforces this immutability requirement across all affected accounts and users, while still permitting authorized read access for auditing purposes?

Accepted Answer

Implement a Service Control Policy (SCP) within AWS Organizations that explicitly denies `s3:DeleteObject`, `s3:DeleteBucket`, and `s3:PutObject` actions for the ARNs of the sensitive S3 buckets, and configure IAM Identity Center permission sets to grant read-only access.

Question 14

A financial services company has established an AWS Organization structure to manage its numerous AWS accounts. The security team has implemented an organizational unit (OU) for all production accounts and attached a Service Control Policy (SCP) to this OU. This SCP explicitly denies the `s3:CreateBucket` action for all principals within accounts belonging to this OU. A Solutions Architect is attempting to create a new S3 bucket in one of the production accounts using the account\'s root user credentials. What is the most likely outcome of this action?

Accepted Answer

The S3 bucket creation will be denied due to the SCP applied at the organizational unit level.

Question 15

A global financial services firm is migrating its mission-critical SAP S/4HANA environment from on-premises data centers to AWS. The organization operates across North America, Europe, and Asia, with users in each region requiring low-latency access to the SAP system. The migration plan prioritizes high availability within the primary region, a robust disaster recovery strategy for business continuity, and a seamless user experience for its geographically dispersed workforce. The firm also needs to ensure secure and reliable connectivity between its existing on-premises infrastructure and the AWS environment. Which combination of AWS services would best address the global access latency and optimize the performance of the SAP S/4HANA deployment for users worldwide, while also supporting the HA and DR requirements?

Accepted Answer

AWS Global Accelerator for optimizing network paths to SAP application servers and Amazon CloudFront for caching static SAP UI content.

Question 16

A global e-commerce platform is undertaking a significant architectural modernization initiative. The current system relies on a monolithic application hosted on-premises, with critical user session data and transactional logs stored in a legacy relational database. The modernization strategy mandates a transition to a microservices architecture on AWS, leveraging Amazon Aurora PostgreSQL for persistent data and Amazon ElastiCache for Redis to manage user session states. A primary objective is to minimize application downtime during this transition and ensure the integrity and availability of user data. The team must also gradually refactor the monolithic application into independent microservices. Which migration strategy best aligns with these objectives, demonstrating adaptability and effective conflict resolution between the old and new systems?

Accepted Answer

Implement a read replica of the on-premises database, synchronize it with a new Amazon Aurora PostgreSQL instance, and concurrently migrate user session state to Amazon ElastiCache for Redis. Once synchronization is complete and validated, direct application traffic to Aurora, then incrementally refactor the monolith into microservices.

Question 17

A Solutions Architect is tasked with ensuring compliance across a large AWS organization. A Service Control Policy (SCP) has been implemented at the root organizational unit (OU) level, explicitly denying the `ec2:RunInstances` action for the `eu-north-1` region. Simultaneously, an IAM user within a member account has an IAM policy that permits `ec2:RunInstances` for all regions globally. This user also has an S3 bucket in `us-east-1` and a VPC configured in `us-west-2`. What will be the outcome if this IAM user attempts to launch an EC2 instance in the `eu-north-1` region?

Accepted Answer

The EC2 instance launch will be denied due to the Service Control Policy.

Question 18

A financial services company operates a mission-critical application that processes sensitive transaction data. The application relies on a relational database for its operations. The current architecture deploys the database cluster in a single Availability Zone (AZ) within a region. The company\'s business continuity plan mandates that the application must remain accessible and operational with minimal downtime, even in the event of an Availability Zone failure or other disruptive incidents. Additionally, robust data recovery capabilities are required to restore the database to a specific point in time in case of data corruption or accidental deletion. Which combination of AWS services and configurations best addresses these requirements for database resilience and recoverability?

Accepted Answer

Deploy the relational database as an Amazon RDS Multi-AZ DB instance and enable automated backups with point-in-time recovery.

Question 19

Aether Dynamics, a global conglomerate with operations spanning multiple continents, is embarking on a comprehensive migration of its on-premises infrastructure and applications to AWS. A critical component of this digital transformation involves establishing a secure and auditable access control framework for its diverse workforce, which includes thousands of employees, contractors, and potentially third-party partners. The company currently utilizes an on-premises Active Directory as its authoritative identity source, which is federated with a third-party identity provider for single sign-on (SSO) to various business applications. The new AWS environment will consist of a multi-account strategy to isolate workloads and enforce compliance with varying data residency regulations, such as GDPR and CCPA. The solution must support granular permissions, enabling different teams and individuals to access only the necessary AWS services and resources required for their roles, while also providing a centralized point of administration and visibility into access activities.

Which of the following strategies represents the most effective approach for Aether Dynamics to manage access to its AWS environment, ensuring robust security, scalability, and compliance?

Accepted Answer

Implement AWS IAM Identity Center to federate with the existing on-premises identity provider, enabling users to access multiple AWS accounts with their corporate credentials, and define granular permissions using IAM roles and custom IAM policies attached to those roles.

Question 20

A global financial institution is undertaking a significant modernization initiative to transition a critical, monolithic customer account management system to a microservices-based architecture hosted on AWS. During this multi-year migration, a substantial portion of the functionality will remain within the monolith, while new microservices are being developed and deployed incrementally. The system must handle fluctuating transaction volumes, with peak loads exceeding average by a factor of five, and requires a highly resilient communication layer between the microservices and the remaining monolithic components to prevent service degradation. The architecture must also facilitate a smooth, phased cutover with the ability to dynamically route traffic to either the monolith or new microservices based on feature flags and operational readiness. Which AWS service is best suited to orchestrate these complex interdependencies and manage the transition with minimal disruption?

Accepted Answer

AWS Step Functions

Question 21

A global enterprise architect is tasked with designing a secure AWS environment using AWS Organizations. The \"Finance\" Organizational Unit (OU) houses accounts that process highly sensitive financial data, necessitating strict adherence to data residency regulations that mandate all data processing and storage must occur exclusively within the `us-east-1` region, with no possibility of cross-region replication. Concurrently, the \"Development\" OU contains accounts for engineering teams who require the flexibility to deploy and test resources across various AWS regions, but must be prevented from accessing any production data, including that managed by the Finance OU. Which architectural approach most effectively enforces these distinct requirements across the OUs?

Accepted Answer

Implement a deny-all Service Control Policy (SCP) for the "Finance" OU that explicitly allows only actions targeting the `us-east-1` region and prohibits any data transfer or replication operations to other regions, while leveraging granular IAM policies within the "Development" OU accounts to restrict access to sensitive production resources.

Question 22

A company\'s critical e-commerce platform, hosted on AWS, is experiencing severe performance degradation, leading to intermittent unresponsiveness and a surge in customer support tickets. The architecture comprises an Application Load Balancer (ALB) distributing traffic to a fleet of EC2 instances running a stateful application. During peak traffic, users report being logged out unexpectedly, and pages fail to load. Analysis of CloudWatch metrics shows high CPU utilization on the EC2 instances, but the ALB request count and target response time metrics are also showing anomalies. The development team suspects that the way user session data is managed on the EC2 instances is contributing to the problem, as each instance maintains its own session state. Which of the following strategies would most effectively address the immediate performance issues and provide a foundation for improved scalability and resilience for this stateful application?

Accepted Answer

Implement Amazon ElastiCache for Redis to manage user session state, allowing EC2 instances to become stateless, and concurrently increase the desired capacity of the EC2 Auto Scaling group.

Question 23

A global financial institution, operating under strict regulatory frameworks such as the EU\'s GDPR and the US\'s SEC Rule 17a-4, requires a highly available and durable data archival solution for critical transaction logs. The solution must ensure that data is protected against accidental deletion, unauthorized modification, and regional outages, while maintaining compliance with data residency requirements and providing an immutable audit trail for a minimum of seven years. The institution also needs to support near-real-time data retrieval from multiple geographical locations to minimize latency for its global operations. Which AWS storage strategy best addresses these multifaceted requirements?

Accepted Answer

Implement Amazon S3 buckets in multiple AWS Regions with Cross-Region Replication (CRR) enabled, utilizing S3 Versioning and S3 Object Lock in Compliance mode for the required retention period, and configure applications to utilize the nearest available S3 bucket endpoint.

Question 24

A global humanitarian organization is responding to a sudden, widespread environmental disruption impacting remote coastal communities. Real-time data from numerous sensors deployed across these affected areas is crucial for coordinating relief efforts, assessing damage, and predicting further environmental changes. The current architecture relies on data being streamed to a central AWS Region for analysis, but the disruption has severely degraded network connectivity to this region, causing significant latency and data loss. The organization needs a solution that can provide continuous, low-latency data processing and analysis directly at these remote operational sites to ensure timely decision-making and maintain operational effectiveness, even with intermittent or unavailable regional connectivity. Which AWS service best addresses this requirement for localized, resilient, and integrated AWS capabilities?

Accepted Answer

AWS Outposts

Question 25

A multinational corporation has recently adopted a new governance policy mandating centralized security auditing and compliance monitoring across all its AWS accounts, which are managed under AWS Organizations. The architecture team has deployed AWS Config recorders in each member account, but the designated central security account is not receiving aggregated configuration data from any of the member accounts. This is causing significant delays in compliance reporting and hindering the security team\'s ability to identify policy violations effectively. The team needs to quickly resolve this discrepancy while ensuring the solution is scalable and adheres to AWS best practices for multi-account governance. Which of the following actions is the most effective technical solution to establish the required centralized view of compliance?

Accepted Answer

Configure an AWS Config aggregator in the designated central security account, specifying the AWS Organization as the source and granting necessary cross-account permissions.

Question 26

Globex Innovations, a global conglomerate, operates numerous subsidiaries, each managing its own AWS accounts with varying degrees of autonomy. This decentralized approach has led to significant challenges: inconsistent security configurations across accounts, difficulties in enforcing company-wide compliance with regulations such as GDPR and HIPAA, duplicated operational efforts leading to inefficiencies, and a lack of centralized visibility into resource sprawl and costs. The IT leadership is seeking a strategic solution to establish a robust governance framework, ensure consistent security postures, and streamline compliance management across all their AWS environments.

Which combination of AWS services would best address Globex Innovations\' multifaceted governance, security, and compliance challenges in their multi-account AWS landscape?

Accepted Answer

AWS Organizations, AWS Control Tower, AWS Service Catalog, and AWS Config

Question 27

A global e-commerce company, operating primarily in North America and Europe, has been utilizing Amazon S3 Intelligent-Tiering for its vast product catalog images and customer interaction logs. Recently, the compliance department mandated a stricter data retention policy, enforcing the deletion of all data older than 90 days. A new S3 lifecycle policy was implemented to achieve this. Following the deployment of this new policy, the cloud finance team observed a significant and unexpected surge in their AWS S3 costs, particularly attributed to storage charges. Analysis of the cost allocation tags and S3 metrics indicates that a substantial portion of the data that was automatically moved to the Archive Access tier by S3 Intelligent-Tiering is now incurring higher storage costs than anticipated, even though the new lifecycle policy is designed to delete this data. What is the most probable reason for this observed cost anomaly?

Accepted Answer

Objects transitioned by S3 Intelligent-Tiering to the Archive Access tier incur a minimum storage duration charge of 90 days, and if a subsequent lifecycle policy deletes these objects before this minimum duration is met, the full 90-day charge is still applied.

Question 28

A multinational e-commerce platform, hosted on AWS, is experiencing sporadic and unpredictable service interruptions affecting users in the European region. The root cause is suspected to be intermittent network instability within a specific AWS Availability Zone. The business requires a solution that minimizes customer impact during these events and ensures a more consistent user experience across the globe, without necessitating an immediate, full-scale multi-region deployment. Which AWS service, when implemented, would best address the immediate need for service continuity and performance optimization during these transient failures?

Accepted Answer

AWS Global Accelerator

Question 29

A global financial services firm, operating under strict regulatory mandates such as GDPR and SOX, is experiencing a surge in sophisticated cyber threats targeting its vast data repositories hosted on Amazon S3. The security operations center (SOC) has identified a need for proactive threat detection, automated remediation of suspicious activities, and an immutable audit trail to satisfy compliance requirements. The firm’s current infrastructure relies heavily on S3 for storing customer transaction records and internal financial reports. The primary challenge is to ensure that any anomalous access patterns or potential data exfiltration attempts are identified and addressed in near real-time, without manual intervention, while maintaining a comprehensive record of all security-relevant events for auditing purposes.

Which combination of AWS services would best address the firm\'s requirements for real-time threat detection, automated remediation, and robust auditing for S3 data protection and regulatory compliance?

Accepted Answer

AWS GuardDuty for threat detection, AWS Lambda integrated with Amazon EventBridge for automated remediation of suspicious S3 access, AWS Config for continuous compliance monitoring of S3 bucket configurations, and AWS CloudTrail for comprehensive API activity logging.

Question 30

A global financial services firm is migrating its on-premises transaction logging system to AWS. The firm handles highly sensitive customer data and must comply with stringent financial regulations that mandate immutable audit trails and granular access control for all transaction records. The objective is to establish a scalable, secure, and compliant data analytics platform that allows for real-time monitoring and historical analysis of these logs, ensuring that no record can be altered or deleted once ingested. Which AWS services, when integrated, would best satisfy these critical requirements for immutability and auditability of financial transaction logs?

Accepted Answer

AWS Managed Blockchain for immutable ledgering of logs, integrated with AWS Lake Formation for centralized governance and access control, and Amazon S3 for cost-effective storage, with analytics performed by Amazon Athena.

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