Tüm alıştırma soruları

A smart home application collects frequent telemetry events from thousands of residential thermostats. The data must be recorded in an Amazon DynamoDB table.

Which partition key design should a solutions architect choose to distribute the write workload evenly across physical partitions?

A healthcare organization manages an on-premises electronic health record (EHR) system that requires low-latency, local block storage access for active patient records. The organization needs to design a resilient hybrid storage and disaster recovery solution on AWS. The solution must support a Recovery Point Objective (RPO) of 1 hour and a Recovery Time Objective (RTO) of 2 hours. In the event of an on-premises virtualization failure, the organization must be able to restore the volumes in AWS and run the EHR application on Amazon EC2 instances. Which storage configuration will meet these requirements with the lowest latency for local operations?

A global travel booking company runs a relational booking system on AWS. The application has its primary deployment in the `us-east-1` region but serves a growing user base in `eu-west-1` and `ap-southeast-1`. The database workload consists of a $90:10$ read-to-write ratio, and the system must handle peak write volumes of up to $10,000$ transactions per second. To improve performance and resilience, a solutions architect must design a database architecture that achieves:

* Low-latency local read access (under $30\text{ ms}$) in all three regions.
* Minimal replication lag and zero performance overhead on the primary writer during peak write volumes.
* A disaster recovery failover capability to another region with a Recovery Time Objective (RTO) of less than $1\text{ minute}$.

Which database configuration should the solutions architect recommend to meet these requirements?

An online multiplayer game studio hosts its backend on AWS and stores two categories of data in a single Amazon S3 bucket:

* Match Replay Videos: The average file size is $120\text{ MB}$. These files are generated daily and are accessed frequently during the first $14\text{ days}$ by players. After $14\text{ days}$, they are rarely accessed, but the studio must retain them for a total of $120\text{ days}$ for compliance and fair-play audits. The files must be retrievable within milliseconds when requested.
* Player Telemetry Logs: The average file size is $8\text{ KB}$. These files are written continuously and are accessed frequently by analytics queries for the first $10\text{ days}$ to detect cheat signatures. After $10\text{ days}$, they are never accessed, but must be kept for a total of $25\text{ days}$ for verification before being deleted.

Which lifecycle configuration is the most cost-effective for these datasets?

An advertising technology company stores two types of data in a single Amazon S3 bucket:

* Clickstream telemetry data: Average file size of $30\text{ KB}$. Millions of files are uploaded daily. The data is accessed frequently for the first $14\text{ days}$ for real-time campaign optimization and is deleted permanently after $25\text{ days}$.
* Ad campaign video assets: Average file size of $800\text{ MB}$. The assets are accessed heavily during the first $30\text{ days}$ of a campaign, are rarely accessed after that, and must be retained for $5\text{ years}$ for audit purposes.

Which configuration represents the most cost-effective storage tiering and lifecycle strategy for these files?

An enterprise operates a multi-VPC architecture in the `eu-west-1` Region. An ETL application running on Amazon EC2 instances in VPC A (Production) regularly extracts large datasets from an RDS MySQL database and transfers $120\text{ TB}$ of data monthly to an Amazon Redshift cluster in VPC B (Analytics). Currently, all inter-VPC traffic is routed through an AWS Transit Gateway. A solutions architect is tasked with optimizing the network design to reduce monthly data transfer costs without introducing network performance bottlenecks. Which routing strategy is the most cost-effective?

An engineering company runs distributed vehicle collision simulation models across a fleet of Amazon EC2 instances. The simulation nodes require sub-millisecond, low-latency node-to-node communication to synchronize physics engines in real-time. Additionally, a central scheduler distributes job configurations to these instances through a Network Load Balancer (NLB) on TCP port 443, which maps to the simulation application listening on TCP port 8080 on the instances. Which combination of configurations will meet the performance requirements and ensure the load balancer correctly routes traffic to the instances? (Select TWO.)

A media company hosts a containerized video transcoding application on AWS Fargate. The transcoding tasks require a steady-state baseline of 12 tasks running 24/7, and scale up to 50 tasks during peak evening hours. The application's metadata database runs on Amazon RDS for MySQL and requires continuous 24/7 operation. Which combination of purchasing strategies will minimize compute costs while ensuring the application meets its availability requirements? (Select TWO.)

A company needs to implement a cost-governance strategy. They want to receive proactive notifications when their monthly AWS costs are forecasted to exceed a predefined threshold. Additionally, they need to perform a detailed retrospective analysis of their spending patterns by service over the past 90 days. Which combination of AWS Cost Management tools should the company use to achieve these goals? (Select TWO.)

An educational institution runs a student voting application during the annual student council election. The application experiences a sudden, unpredictable surge in database writes for a single day, but remains completely idle for the rest of the year. The system uses an Amazon DynamoDB table. Which capacity mode should the solutions architect choose to minimize costs while preventing write throttling?

A company is designing a secure architecture for a reporting application that runs on Amazon EC2 instances in a private subnet. The application must retrieve a database password that is updated every 30 days. Additionally, developers who are managed in an external corporate directory need administrative access to manage these EC2 instances. The company's security policy prohibits the use of long-term credentials or hardcoded secrets.

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

A company hosts a machine learning application on Amazon EC2 instances inside a private subnet of a VPC. The application frequently downloads large training datasets from an Amazon S3 bucket within the same AWS Region. Currently, the EC2 instances access Amazon S3 through a NAT Gateway, which has caused a significant increase in NAT Gateway data processing charges. What is the most cost-effective network routing solution to eliminate these data processing charges?

A company has migrated its e-commerce platform to AWS. The platform experiences seasonal traffic fluctuations, leading to variable monthly infrastructure costs. The finance team needs a solution to detect and receive notifications about sudden, unexpected spend spikes that deviate from historical usage patterns, without the need to define and maintain static budget thresholds. Which AWS service or feature should a solutions architect recommend to satisfy these requirements?

A company is deploying a distributed application on Amazon EC2. The application requires the instances to be placed on distinct physical hardware racks to minimize correlated failures. Which EC2 configuration should the solutions architect select?

A company has an on-premises data center connected to AWS via a $1\text{ Gbps}$ AWS Direct Connect connection with a private virtual interface (VIF). An application running on-premises replicates $30\text{ TB}$ of backup files monthly to an Amazon S3 bucket. Currently, the traffic routes from the on-premises network, through the private VIF into a VPC, and then through a NAT Gateway to reach the Amazon S3 public endpoints. The company wants to minimize data transfer costs.

Which network routing modification will meet these requirements most cost-effectively?

An energy exploration firm runs a distributed seismic data processing application on Amazon EC2 instances. The application performs heavy parallel calculations and requires sub-millisecond node-to-node network latency across all instances to synchronize state. The application is accessed by internal visualization tools on port 7001, and a Network Load Balancer (NLB) is deployed to distribute client requests. The operations team notices that newly launched instances fail health checks and are not receiving traffic. Which configuration will resolve the health check failures and satisfy the low-latency network requirements?

A digital service provider manages multiple AWS accounts for independent client organizations using AWS Organizations. The provider needs to implement a billing and cost management system that achieves the following requirements:

* Client A must receive a custom proforma invoice showing a 10% discount on all Amazon EC2 usage.
* Client B must receive a custom proforma invoice showing standard AWS list prices.
* Both clients must be able to set up threshold-based budget alerts based on their specific custom proforma costs.
* Neither client should have visibility into the provider's actual negotiated AWS pricing or the other client's billing data.

Which combination of steps should a solutions architect take to meet these requirements with the least operational overhead?

A healthcare provider stores two types of files in an Amazon S3 bucket for patient consultations: session audio recordings (average size $180\text{ MB}$) and session text transcripts (average size $40\text{ KB}$). The audio recordings are accessed frequently for the first $15\text{ days}$, after which they are rarely accessed, but must be retained for a total of $45\text{ days}$ before deletion. The text transcripts are accessed frequently for the first $10\text{ days}$, after which they are rarely accessed, but must be deleted after a total of $25\text{ days}$. Which lifecycle configuration is the most cost-effective for this data?

A meteorological research center stores two types of data in a single Amazon S3 bucket:

* Satellite Images: Average file size is $15\text{ MB}$. These files are accessed frequently for the first $14\text{ days}$, after which they are rarely retrieved but must be retained for $1\text{ year}$ for climate modeling.
* Station Telemetry Logs: Average file size is $5\text{ KB}$. These logs are analyzed immediately upon upload, may be re-processed up to $10\text{ days}$ after ingestion, and are no longer needed afterward.

Which TWO lifecycle configuration actions will result in the most cost-effective storage solution for this data?

A company is planning to migrate a relational database to AWS. The database experiences highly variable traffic, with high read/write activity during business hours and nearly zero activity at night. The application requires high availability with automatic failover. The company wants to minimize costs by paying only for the database capacity actually used. Which database configuration is the most cost-effective?