All practice questions

A company runs a production application on an Amazon RDS for PostgreSQL database instance. The database currently operates in a single Availability Zone. The Solutions Architect needs to modify the database configuration to ensure high availability with automatic failover in the event of an infrastructure failure or Availability Zone outage. Which configuration change will meet these requirements with the least operational effort?

A financial services company runs a critical transactional application backed by an Amazon RDS PostgreSQL DB instance. Currently, the database is deployed in a single Availability Zone (AZ). Due to compliance regulations, the database layer must be redesigned to ensure high availability. The solution must achieve a Recovery Point Objective (RPO) of zero (no data loss) and a Recovery Time Objective (RTO) of under two minutes in the event of an AZ failure. Which database configuration should a solutions architect recommend to meet these requirements?

An enterprise healthcare platform hosts its critical medical imaging application in the `us-east-1` Region. The application runs on Amazon EC2 instances distributed across three Availability Zones (AZs) and requires concurrent, POSIX-compliant read/write access to shared storage for active patient scans. Active scans must be immediately resilient to AZ-level failures. Scans older than $90$ days must be transitioned to a lower-cost tier to optimize costs, but must remain accessible within an emergency retrieval window of under $5$ minutes. Additionally, a disaster recovery (DR) site in the `us-west-2` Region must be maintained using a pilot light strategy. The DR site has a target Recovery Point Objective (RPO) of $15$ minutes and a Recovery Time Objective (RTO) of $10$ minutes. Which storage architecture meets all of these requirements with the lowest operational complexity?

A genomics research facility is migrating its high-performance computing (HPC) pipeline to AWS. The pipeline runs on a cluster of $32$ Amazon EC2 instances and requires concurrent, shared read and write access to a temporary scratch workspace. The storage system must deliver sub-millisecond latencies, support parallel I/O, and scale aggregate throughput linearly up to $15\text{ GB/s}$ during peak processing. Which two actions should a solutions architect take to meet these performance requirements at the lowest cost and operational complexity? (Select TWO.)

A media company is building a telemetry platform to ingest and transform clickstream data from its mobile application. The data stream averages $8\text{ MB/s}$ and spikes up to $25\text{ MB/s}$ during peak hours. The company requires that the data be converted from JSON to Apache Parquet format, partitioned by date, and stored in Amazon S3. The latency from ingestion to S3 must not exceed 5 minutes ($300\text{ seconds}$). The architecture must be high-performing and require minimal operational overhead. Which two actions should a solutions architect recommend to meet these requirements?

An enterprise runs a critical transactional application backed by an Amazon RDS for PostgreSQL database instance in the us-east-1 Region. The database must sustain an Availability Zone outage with zero data loss (RPO = 0) and automatic failover in less than 60 seconds (RTO < 60s). The enterprise also requires a disaster recovery (DR) solution in the us-west-2 Region with an RPO of less than 5 minutes and an RTO of less than 15 minutes. Which two database configuration actions should the solutions architect take to meet these requirements with the least operational overhead?

A company runs a high-performance media rendering application using Amazon ECS on AWS Fargate. The containerized application tasks run concurrently and must read from and write to a shared, POSIX-compliant filesystem. The workload is highly dynamic, with throughput requirements spiking up to $800\text{ MB/s}$ during peak rendering times. Which storage solution should a solutions architect recommend to meet these requirements with the highest performance and scalability?

A financial auditing firm hosts a document management system on AWS where millions of PDF records are stored in an Amazon S3 bucket. The compliance team mandates a highly resilient storage architecture that protects against a total AWS Region outage. The disaster recovery plan dictates a Recovery Time Objective (RTO) of less than 15 minutes and a Recovery Point Objective (RPO) of under 15 minutes. Which storage strategy should a solutions architect implement to satisfy these requirements?

A company is replicating large daily backups from their on-premises data center to Amazon S3. The data replication requires a consistent network throughput of at least $3\text{ Gbps}$ during peak transfer windows. Currently, the company uses a single AWS Site-to-Site VPN connection to AWS, but they are experiencing severe replication delays. Which solution should the solutions architect implement to meet these requirements?

A solutions architect is designing a solution to ingest real-time streaming data from web application logs and store the data in Amazon S3. The logs must be converted from JSON to Apache Parquet format before storage to optimize query performance in Amazon Athena. The architect wants to implement a fully managed, serverless solution with minimal operational overhead.

Which AWS service should the solutions architect use to meet these requirements?

A financial analytics platform runs a simulation engine on a fleet of 120 Linux EC2 instances. The simulation requires concurrent, shared access to a POSIX-compliant file system. The instances must read and write transient datasets simultaneously. During peak workloads, the simulation engine generates an aggregate write throughput of $6\text{ GB/s}$ ($6,000\text{ MB/s}$) and requires sub-millisecond metadata latencies. Which storage solution meets these performance requirements with the lowest operational complexity?

A solutions architect is designing a storage system for a high-performance rendering application running on a cluster of Linux EC2 instances. The cluster requires concurrent read and write access to a shared file system that can scale throughput dynamically. Which storage options should the solutions architect recommend? (Select TWO.)

A healthcare provider is deploying a medical imaging application on Amazon EC2 instances across multiple Availability Zones in a primary AWS region. The application requires a shared file system that supports POSIX-compliant file operations and allows concurrent read and write access from all EC2 instances. Additionally, the provider requires a disaster recovery strategy to replicate this shared storage to a secondary AWS region with a Recovery Point Objective (RPO) of less than 15 minutes. Which combination of storage configurations will meet these requirements? (Select TWO.)

A financial service provider is designing a real-time fraud detection and auditing solution. The solution must ingest transaction logs from millions of globally distributed POS terminals, with peak traffic reaching $15\text{ MB/s}$ and up to $15,000$ transactions per second. The transactions must be processed in the exact order they are received for each terminal to ensure accurate validation. The raw transactions must also be stored in Apache Parquet format on Amazon S3 with low operational overhead.

Which combination of actions should the solutions architect recommend to meet these requirements? (Select two.)

A company wants to connect its on-premises corporate data center to an AWS VPC to support a database replication workload that requires a dedicated, private network bandwidth of 10 Gbps. The connection must completely bypass the public internet. Which TWO configurations should the solutions architect implement to meet these requirements?

A company wants to design a serverless data ingestion pipeline to collect real-time website clickstream data. The data must be transformed into a standardized format and stored in Amazon S3. The ingestion rate varies throughout the day, and the solution must scale automatically to handle traffic spikes with minimal operational overhead.

Which combination of AWS services should the company use to meet these requirements? (Select two.)

A company is designing a highly resilient storage solution on AWS for its critical media assets. The assets must be protected against accidental deletion, and the architecture must ensure the assets are replicated to a secondary AWS Region to support a disaster recovery plan with a Recovery Time Objective (RTO) of less than 15 minutes. Which two configurations should a solutions architect implement to meet these requirements?

A smart utility company is designing a real-time data ingestion pipeline to monitor $500,000$ smart electricity meters. The meters transmit power consumption metrics every $15$ seconds, resulting in a total write throughput of $5 \text{ MB/s}$ and approximately $33,000$ records per second. The company has two requirements:

1. An anomaly detection application must process the incoming metrics and identify power spikes. To prevent false positives, the application must process the metrics from each individual meter in the exact order they were generated.
2. The raw data must be converted to Apache Parquet format and archived in Amazon S3 within $5$ minutes of generation for historical analysis.

Which architecture should a solutions architect recommend to meet these requirements with the highest performance and the lowest operational overhead?

A company is designing a high-performance analytics ingestion pipeline for mobile application clickstream events. During peak hours, the application generates up to $50,000$ events per second, with an average event size of $1.5\text{ KB}$. The events must be ingested with minimal latency, transformed from JSON to Apache Parquet format, partitioned by date and hour, and stored in Amazon S3 for query analysis using Amazon Athena. The solution must scale automatically to handle peak traffic spikes without manual intervention, ensure no data loss, and maintain an end-to-end delivery latency of under $5$ minutes. Which two steps should the solutions architect recommend to implement this architecture?

A mobile gaming company uses Amazon CloudFront to deliver static game patch files to global users. The patch files are primarily served from an Application Load Balancer (ALB) backed by Amazon EC2 instances. To improve availability, the company has uploaded a backup copy of the patch files to an Amazon S3 bucket. The solutions architect must configure CloudFront to automatically serve files from the S3 bucket if the ALB is unavailable or returns 502 or 504 error codes.

Which two actions should the solutions architect take to meet these requirements? (Select TWO.)