All practice questions

A financial auditing firm must store historical transaction logs. The logs require 99.999999999% durability and must be highly resilient across multiple Availability Zones. The recovery time objective (RTO) for retrieving these logs is less than 10 minutes when an audit request is received. The solution must be highly cost-effective. Which two AWS storage configurations will meet these requirements? (Select TWO).

A financial services company is hosting a transaction auditing application on Amazon EC2 instances distributed across three Availability Zones in a single AWS Region. The application requires a shared file system that can be accessed concurrently by all EC2 instances to read and write active audit files. The storage solution must be highly resilient within the Region. Additionally, the company requires a disaster recovery (DR) architecture for this shared storage in a secondary Region with a Recovery Point Objective (RPO) of 15 minutes and a Recovery Time Objective (RTO) of 30 minutes. Which combination of storage configurations will meet these requirements? (Select TWO.)

A financial services firm is deploying a web-based client portal. The portal uses an Amazon RDS DB instance to store transaction records. The database must remain highly available during a database instance failure or an Availability Zone outage, with automatic failover to a standby instance without manual intervention. Which Amazon RDS configuration should a solutions architect recommend to meet these requirements?

A company is designing a new internal application that will store temporary session logs. The log writing pattern is highly unpredictable, characterized by sudden, brief spikes of intensive activity followed by hours of complete silence. The database must minimize costs, and logs do not need to be retained for more than 7 days. Which combination of database configurations or features will meet these requirements most cost-effectively? (Select TWO.)

An enterprise is running a mission-critical transactional database on a cluster of Amazon EC2 instances in a single Availability Zone. The database requires shared block storage that supports SCSI-3 persistent reservations for failover clustering, must sustain a peak workload of $70,000$ IOPS, and requires sub-millisecond latency. Which storage configurations will meet these performance and clustering requirements? (Select TWO.)

An organization is migrating a high-volume data ingestion system to AWS. The migration requires transferring large datasets from an on-premises storage system to Amazon EC2 instances in a single VPC, requiring a constant network bandwidth of at least $2\text{ Gbps}$. Which two connectivity configurations can support this bandwidth requirement? (Select TWO.)

A company is designing a high-performing data ingestion and transformation pipeline to process streaming clickstream data from its web application. The pipeline must scale automatically to handle traffic spikes, transform the incoming data into Apache Parquet format, and deliver the final output to Amazon S3 with the least operational complexity. Which two AWS configurations should the solutions architect combine to meet these requirements? (Select two.)

A media processing company is designing a system on AWS to orchestrate and run video rendering jobs. The architecture includes:

1. An orchestration daemon that runs $24/7$ on Amazon Elastic Container Service (Amazon ECS) on AWS Fargate to monitor job queues and manage metadata.
2. A fleet of worker nodes that retrieve tasks from an Amazon SQS queue, download large video segments, process them, and upload the results to Amazon S3. Individual rendering tasks can run for up to $3\text{ hours}$. The queue depth varies significantly throughout the day, and tasks can be safely restarted from the beginning if interrupted.
3. A persistent database layer running on Amazon RDS for PostgreSQL to store customer metadata and job configurations.

Which combination of compute selection and purchasing strategies will achieve the lowest overall cost? (Select TWO.)

A research institution is deploying a distributed high-performance computing (HPC) pipeline on AWS for genomic sequencing. The pipeline is deployed across a fleet of Amazon EC2 instances. The pipeline requires a shared storage solution that supports concurrent read and write access from hundreds of instances, delivers sub-millisecond latency, and scales throughput up to $20\text{ GB/s}$. Additionally, the solution must automatically load raw input datasets from a designated Amazon S3 bucket when files are first accessed, and export output results back to the S3 bucket upon pipeline completion.

Which combination of steps should the solutions architect take to meet these performance and integration requirements? (Choose two.)

An enterprise inventory management application uses Amazon Aurora PostgreSQL as its database engine. The application has strict resiliency requirements: it must achieve high availability within the primary AWS Region with a recovery time objective (RTO) of less than 30 seconds and a recovery point objective (RPO) of zero. Furthermore, for disaster recovery, the database must be replicated to a secondary AWS Region with an RPO of less than 5 seconds and an RTO of less than 15 minutes.

Which combination of database configurations will meet these requirements? (Select TWO.)

A solutions architect is migrating a high-frequency transactional database to an Amazon EC2 instance. The database requires a single storage volume that can deliver at least $95,000$ IOPS and $1.5\text{ GB/s}$ throughput with sub-millisecond latency. The database also requires $99.999\%$ volume durability to prevent data loss.

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

A financial analytics firm runs a distributed risk-modeling application across a fleet of 80 Linux-based Amazon EC2 instances. The application requires a shared, POSIX-compliant file system with sub-millisecond latencies, capable of handling an aggregate throughput of up to $40 \text{ GB/s}$ and $100,000 \text{ IOPS}$ during peak execution. The data set is updated periodically from an Amazon S3 bucket, and the storage must support automatic replication across multiple Availability Zones to ensure high availability. Which combination of storage solutions and configurations should a solutions architect recommend to meet these requirements? (Select TWO.)

A financial services company hosts a web application across two AWS Regions: us-west-2 and eu-central-1. The application is deployed behind Application Load Balancers (ALBs) in both Regions to serve users in North America and Europe. Users are reporting high latency and poor connection stability during peak hours. The company requires a solution that minimizes latency by routing user traffic over the AWS global network backbone. The solution must also provide automatic failover in less than 30 seconds if a Region becomes unhealthy, without relying on DNS caching. Which solution should a solutions architect recommend to meet these requirements?

A company is deploying a containerized application across a fleet of Amazon EC2 instances distributed across multiple Availability Zones. The application requires a shared file system where all EC2 instances can concurrently read and write files with sub-millisecond latency. The storage solution must scale throughput automatically based on workload demand without requiring manual provisioning. Which storage solution should a solutions architect recommend to meet these requirements?

An IoT-connected vehicle telemetry platform processes real-time diagnostics data using Amazon EC2 instances distributed across three Availability Zones. The application requires a shared file storage layer that supports POSIX-compliant file operations, concurrent access from all EC2 instances, and sub-millisecond latencies. Additionally, the business requires a disaster recovery (DR) solution in a secondary AWS Region with a Recovery Point Objective (RPO) of 15 minutes and a Recovery Time Objective (RTO) of 5 minutes. Which combination of storage configurations will meet these requirements? (Select TWO).

A company is setting up a hybrid network to replicate database transactions from an on-premises data center to an AWS VPC. The replication process requires a consistent network throughput of $2\text{ Gbps}$ and must use a private, dedicated physical connection to minimize latency. Which network architecture solution should the systems architect implement to meet these requirements?

A team of developers is setting up a collaborative development environment on AWS. They are running $3$ separate Amazon EC2 instances, each in a different Availability Zone. The developers need to access and modify a shared directory containing source code and configurations simultaneously from all $3$ instances. Which storage solution should a solutions architect recommend to meet these requirements?

A company hosts a web application deployed across two AWS Regions: `us-east-1` and `ap-northeast-1`. The user-facing component of the application uses Application Load Balancers (ALBs) in both Regions. The company wants to minimize latency for global users by routing their traffic over the AWS private network backbone to the nearest ALB. Additionally, the backend database tier requires a secure, high-throughput connection to replicate transaction logs averaging $3\text{ Gbps}$ between VPCs in both Regions. The solution must optimize throughput and latency while maintaining high availability.

Which TWO actions should the solutions architect take to meet these requirements?

A digital marketing agency runs a media processing application on Amazon EC2 instances distributed across multiple Availability Zones in the us-east-1 Region. The application requires a shared file storage solution that offers at least $99.99\%$ availability and high durability for active assets. Additionally, the architecture must support a Recovery Time Objective (RTO) of near-zero minutes and a Recovery Point Objective (RPO) of $0$ for all active editing sessions. The storage must allow simultaneous read and write access from all EC2 instances across the Availability Zones. Which storage solution should a solutions architect recommend to meet these requirements?

An application is running on a single-node Amazon RDS for PostgreSQL DB instance. The database requires high availability with automatic failover in the event of an Availability Zone outage. Additionally, the application requires read performance scaling. Which TWO configurations or features should a solutions architect implement to meet these requirements? (Select TWO.)