Question 850
A decision meeting distinguishes between two outcomes: distinguish event streams from independently consumed queued tasks, and invoke supported targets according to one-time or recurring schedules. The first is handled using Amazon Kinesis versus SQS. Which option directly supports the second?
- AWS IoT Device Management
- Amazon Kinesis versus SQS
- Amazon EventBridge
- Amazon EventBridge Scheduler
Explanation
Correct Answer
D:Amazon EventBridge Scheduler addresses the new need to invoke supported targets according to one-time or recurring schedules because eventBridge Scheduler manages event-driven scheduled invocations; Amazon Kinesis versus SQS supports the different existing task to distinguish event streams from independently consumed queued tasks.
Incorrect Answers
A:AWS IoT Device Management is intended to organize and manage fleets of supported connected devices because ioT device management capabilities help register organize and monitor connected devices; in this design the new outcome is to invoke supported targets according to one-time or recurring schedules, which calls for Amazon EventBridge Scheduler rather than AWS IoT Device Management or the earlier Amazon Kinesis versus SQS.
B:Amazon Kinesis versus SQS primarily supports the earlier need to distinguish event streams from independently consumed queued tasks because kinesis is oriented toward ordered streaming data while SQS supports decoupled message processing, but the new task is to invoke supported targets according to one-time or recurring schedules; that is why Amazon EventBridge Scheduler is preferable here.
C:Amazon EventBridge is intended to route events from producers to targets using event patterns because eventBridge provides event buses and rule-based matching for supported events; in this design the new outcome is to invoke supported targets according to one-time or recurring schedules, which calls for Amazon EventBridge Scheduler rather than Amazon EventBridge or the earlier Amazon Kinesis versus SQS.
Question 851
The solution currently handles its need to define AWS infrastructure using familiar programming languages with AWS Cloud Development Kit (AWS CDK). A new requirement is to recreate multi-resource infrastructure from versioned templates instead. Which service or principle addresses that different need?
- AWS Cloud Development Kit (AWS CDK)
- AWS Control Tower
- AWS CloudFormation
- Infrastructure as code
Explanation
Correct Answer
C:AWS CloudFormation addresses the new need to recreate multi-resource infrastructure from versioned templates because cloudFormation models resources as stacks and applies managed creation and update operations; AWS Cloud Development Kit (AWS CDK) supports the different existing task to define AWS infrastructure using familiar programming languages.
Incorrect Answers
A:AWS Cloud Development Kit (AWS CDK) primarily supports the earlier need to define AWS infrastructure using familiar programming languages because AWS CDK constructs synthesize infrastructure definitions for deployment through CloudFormation, but the new task is to recreate multi-resource infrastructure from versioned templates; that is why AWS CloudFormation is preferable here.
B:AWS Control Tower is intended to establish and govern a multi-account landing zone because control Tower provides guardrails and account governance for supported AWS Organizations environments; in this design the new outcome is to recreate multi-resource infrastructure from versioned templates, which calls for AWS CloudFormation rather than AWS Control Tower or the earlier AWS Cloud Development Kit (AWS CDK).
D:Infrastructure as code is intended to treat resource configurations as version-controlled declarative definitions because infrastructure as code makes deployments repeatable and reviewable through machine-readable files; in this design the new outcome is to recreate multi-resource infrastructure from versioned templates, which calls for AWS CloudFormation rather than Infrastructure as code or the earlier AWS Cloud Development Kit (AWS CDK).
Question 852
A reviewer suggests Real-time event analytics when asked how to ingest and process streaming event data near real time, although that offering is primarily used to act on measurements or clicks as they arrive. Which alternative is the more precise choice?
- Real-time event analytics
- Amazon Kinesis
- AWS Lake Formation
- Amazon Athena
Explanation
Correct Answer
B:Amazon Kinesis addresses the new need to ingest and process streaming event data near real time because kinesis services support streaming collection and processing pipelines; Real-time event analytics supports the different existing task to act on measurements or clicks as they arrive.
Incorrect Answers
A:Real-time event analytics primarily supports the earlier need to act on measurements or clicks as they arrive because streaming architectures use ingestion and processing to reduce analysis latency, but the new task is to ingest and process streaming event data near real time; that is why Amazon Kinesis is preferable here.
C:AWS Lake Formation is intended to govern data lakes with access and catalog integration because lake Formation helps establish and secure data-lake environments using AWS data services; in this design the new outcome is to ingest and process streaming event data near real time, which calls for Amazon Kinesis rather than AWS Lake Formation or the earlier Real-time event analytics.
D:Amazon Athena is intended to query supported data in S3 using serverless SQL because athena runs interactive SQL queries without provisioning a dedicated database server; in this design the new outcome is to ingest and process streaming event data near real time, which calls for Amazon Kinesis rather than Amazon Athena or the earlier Real-time event analytics.
Question 853
The acceptance criteria for an AWS solution include the ability to restore servers and workloads in AWS after an infrastructure disaster. Which item should the team choose?
- AWS Elastic Disaster Recovery
- Amazon FSx for Windows File Server
- EC2 instance store
- Amazon S3 Inventory
Explanation
Correct Answer
A:AWS Elastic Disaster Recovery matches the goal to restore servers and workloads in AWS after an infrastructure disaster because elastic Disaster Recovery uses continuous block replication and orchestrated recovery. It focuses on recovery rather than scheduled standalone object expiry. Amazon S3 Inventory is for the different objective to generate lists of objects and associated metadata for analysis.
Incorrect Answers
B:Amazon FSx for Windows File Server addresses the separate need to provide managed SMB file shares for Windows workloads because fSx for Windows File Server supports Windows file protocols and Active Directory integration; it is not as direct as AWS Elastic Disaster Recovery for the actual requirement to restore servers and workloads in AWS after an infrastructure disaster.
C:EC2 instance store addresses the separate need to hold scratch data temporarily on host-attached disks because instance store provides fast ephemeral data storage tied to the host; it is not as direct as AWS Elastic Disaster Recovery for the actual requirement to restore servers and workloads in AWS after an infrastructure disaster.
D:Amazon S3 Inventory addresses the separate need to generate lists of objects and associated metadata for analysis because S3 Inventory produces scheduled reports about bucket objects and properties; it is not as direct as AWS Elastic Disaster Recovery for the actual requirement to restore servers and workloads in AWS after an infrastructure disaster.
Question 854
A solution has 2 separate requirements: first, run container tasks without managing EC2 container hosts; second, balance CPU memory and networking for broadly mixed workloads. Which TWO choices correspond most directly to these needs? Choose TWO.
- Amazon EC2 AMI
- General purpose EC2 instance
- AWS Fargate
- AWS Lambda
- Memory optimized EC2 instance
Explanation
Correct Answers
B:General purpose EC2 instance covers the listed need to balance CPU memory and networking for broadly mixed workloads because general-purpose instances provide a balanced resource profile without specializing in one bottleneck; it belongs in the keyed set alongside AWS Fargate to run container tasks without managing EC2 container hosts.
C:AWS Fargate covers the listed need to run container tasks without managing EC2 container hosts because fargate supplies serverless compute for supported ECS and EKS workloads; it belongs in the keyed set alongside General purpose EC2 instance to balance CPU memory and networking for broadly mixed workloads.
Incorrect Answers
A:Amazon EC2 AMI addresses a different objective, to relaunch instances from a defined system image, because an Amazon Machine Image supplies a template for instance boot volumes and configuration; the checklist instead requires the distinct outcomes to run container tasks without managing EC2 container hosts; balance CPU memory and networking for broadly mixed workloads.
D:AWS Lambda addresses a different objective, to execute event-triggered code without managing virtual servers, because lambda runs functions in managed execution environments with service-defined execution constraints; the checklist instead requires the distinct outcomes to run container tasks without managing EC2 container hosts; balance CPU memory and networking for broadly mixed workloads.
E:Memory optimized EC2 instance addresses a different objective, to support applications with large in-memory working sets, because memory-optimized families provide higher RAM-to-vCPU ratios for memory-bound applications; the checklist instead requires the distinct outcomes to run container tasks without managing EC2 container hosts; balance CPU memory and networking for broadly mixed workloads.
Question 855
A team has chosen Application availability versus data durability to separate immediate service accessibility from long-term data survival. Which description explains the mechanism that makes this selection appropriate?
- Availability concerns whether a service is usable; durability concerns retaining stored data.
- Region placement and configured replication determine where supported AWS workload data resides.
- Cross-Region replication moves eligible objects or database data into a different geography when configured.
- Independent power, networking and facility boundaries help isolate Availability Zones.
Explanation
Correct Answer
A:Application availability versus data durability meets the goal to separate immediate service accessibility from long-term data survival because availability concerns whether a service is usable; durability concerns retaining stored data. High object durability does not guarantee an application endpoint is always reachable.
Incorrect Answers
B:That description belongs to Data residency by Region because region placement and configured replication determine where supported AWS workload data resides; it is used to keep stored customer data in a selected geography, not to explain how Application availability versus data durability provides the function to separate immediate service accessibility from long-term data survival.
C:That description belongs to Cross-Region replication because cross-Region replication moves eligible objects or database data into a different geography when configured; it is used to maintain copies of selected data outside its source Region, not to explain how Application availability versus data durability provides the function to separate immediate service accessibility from long-term data survival.
D:That description belongs to AZ failure-domain separation because independent power, networking and facility boundaries help isolate Availability Zones; it is used to reduce correlated failures between redundant service nodes, not to explain how Application availability versus data durability provides the function to separate immediate service accessibility from long-term data survival.
Question 856
A team already uses Amazon Aurora to use a cloud-optimized relational engine compatible with MySQL or PostgreSQL. It now must run JSON document workloads using MongoDB-compatible APIs, which is a separate requirement. What should it select for that new objective?
- Amazon DocumentDB
- Amazon DynamoDB
- Amazon RDS
- Amazon Aurora
Explanation
Correct Answer
A:Amazon DocumentDB addresses the new need to run JSON document workloads using MongoDB-compatible APIs because documentDB offers managed document database capabilities for suitable MongoDB workloads; Amazon Aurora supports the different existing task to use a cloud-optimized relational engine compatible with MySQL or PostgreSQL.
Incorrect Answers
B:Amazon DynamoDB is intended to store key-value or document data with managed NoSQL scaling because DynamoDB is a fully managed NoSQL database with service-managed infrastructure; in this design the new outcome is to run JSON document workloads using MongoDB-compatible APIs, which calls for Amazon DocumentDB rather than Amazon DynamoDB or the earlier Amazon Aurora.
C:Amazon RDS is intended to operate a managed relational database engine because RDS automates selected relational database operations including backup and patching; in this design the new outcome is to run JSON document workloads using MongoDB-compatible APIs, which calls for Amazon DocumentDB rather than Amazon RDS or the earlier Amazon Aurora.
D:Amazon Aurora primarily supports the earlier need to use a cloud-optimized relational engine compatible with MySQL or PostgreSQL because aurora is a managed relational database with distributed storage and supported compatibility modes, but the new task is to run JSON document workloads using MongoDB-compatible APIs; that is why Amazon DocumentDB is preferable here.
Question 857
The workload already uses Regional service scope to recognize that many AWS resources exist only in a selected Region. A second workstream needs to verify a particular offering is available in the chosen Region. Which AWS choice fits the second workstream?
- Regional service scope
- Regional service availability check
- Cross-Region replication
- Availability Zone
Explanation
Correct Answer
B:Regional service availability check addresses the new need to verify a particular offering is available in the chosen Region because AWS service availability varies by Region and sometimes by instance family or feature; Regional service scope supports the different existing task to recognize that many AWS resources exist only in a selected Region.
Incorrect Answers
A:Regional service scope primarily supports the earlier need to recognize that many AWS resources exist only in a selected Region because regional services require selecting the location where supported resources are created, but the new task is to verify a particular offering is available in the chosen Region; that is why Regional service availability check is preferable here.
C:Cross-Region replication is intended to maintain copies of selected data outside its source Region because cross-Region replication moves eligible objects or database data into a different geography when configured; in this design the new outcome is to verify a particular offering is available in the chosen Region, which calls for Regional service availability check rather than Cross-Region replication or the earlier Regional service scope.
D:Availability Zone is intended to separate redundant application components across isolated facilities within one Region because an Availability Zone is one or more discrete data centers with independent infrastructure in a Region; in this design the new outcome is to verify a particular offering is available in the chosen Region, which calls for Regional service availability check rather than Availability Zone or the earlier Regional service scope.
Question 858
In an architecture review, AWS Cloud Development Kit (AWS CDK) was selected to define AWS infrastructure using familiar programming languages. Which account of its behavior justifies this decision?
- CloudFormation models resources as stacks and applies managed creation and update operations.
- Outposts extends selected AWS infrastructure and services to supported on-premises locations.
- AWS CDK constructs synthesize infrastructure definitions for deployment through CloudFormation.
- A public cloud model uses infrastructure operated by an external cloud provider.
Explanation
Correct Answer
C:AWS Cloud Development Kit (AWS CDK) meets the goal to define AWS infrastructure using familiar programming languages because AWS CDK constructs synthesize infrastructure definitions for deployment through CloudFormation. Source-code constructs ultimately represent infrastructure, not a running application service; the question tests the operating mechanism of AWS Cloud Development Kit (AWS CDK) for the need to define AWS infrastructure using familiar programming languages.
Incorrect Answers
A:That description belongs to AWS CloudFormation because cloudFormation models resources as stacks and applies managed creation and update operations; it is used to recreate multi-resource infrastructure from versioned templates, not to explain how AWS Cloud Development Kit (AWS CDK) provides the function to define AWS infrastructure using familiar programming languages.
B:That description belongs to AWS Outposts because outposts extends selected AWS infrastructure and services to supported on-premises locations; it is used to run AWS-managed infrastructure at a customer premises for local requirements, not to explain how AWS Cloud Development Kit (AWS CDK) provides the function to define AWS infrastructure using familiar programming languages.
D:That description belongs to Public cloud deployment because a public cloud model uses infrastructure operated by an external cloud provider; it is used to run workloads on provider infrastructure without maintaining local servers, not to explain how AWS Cloud Development Kit (AWS CDK) provides the function to define AWS infrastructure using familiar programming languages.
Question 859
While reviewing a design, an architect identifies a gap: the workload needs to recognize the separation of build release deploy and tracing functions. Which option closes that gap most directly?
- AWS CodeBuild
- AWS Developer Tools
- Amazon SNS
- Amazon Cognito
Explanation
Correct Answer
B:AWS Developer Tools matches the goal to recognize the separation of build release deploy and tracing functions because AWS developer services specialize in different steps of software delivery. Using one component does not automatically provide every pipeline stage. AWS CodeBuild is for the different objective to run continuous-integration builds and automated tests.
Incorrect Answers
A:AWS CodeBuild addresses the separate need to run continuous-integration builds and automated tests because codeBuild executes build environments without maintaining build servers; it is not as direct as AWS Developer Tools for the actual requirement to recognize the separation of build release deploy and tracing functions.
C:Amazon SNS addresses the separate need to fan out notifications to multiple subscribed endpoints because sNS uses topics and subscriptions to publish messages to multiple destinations; it is not as direct as AWS Developer Tools for the actual requirement to recognize the separation of build release deploy and tracing functions.
D:Amazon Cognito addresses the separate need to provide sign-up sign-in and identity features for customer-facing applications because cognito supports application user directories and federation; it is not as direct as AWS Developer Tools for the actual requirement to recognize the separation of build release deploy and tracing functions.
Question 860
A team has chosen Amazon S3 Inventory to generate lists of objects and associated metadata for analysis. Which description explains the mechanism that makes this selection appropriate?
- S3 is an object storage service for files and data blobs rather than mounted block devices.
- This capability is appropriate for data requiring regular access across multiple AZs.
- S3 Inventory produces scheduled reports about bucket objects and properties.
- Bucket policies are resource-based JSON permissions for supported S3 actions.
Explanation
Correct Answer
C:Amazon S3 Inventory meets the goal to generate lists of objects and associated metadata for analysis because S3 Inventory produces scheduled reports about bucket objects and properties. It is not the same as continuous application log monitoring.
Incorrect Answers
A:That description belongs to Amazon S3 because S3 is an object storage service for files and data blobs rather than mounted block devices; it is used to store durable objects and retrieve them by bucket and key, not to explain how Amazon S3 Inventory provides the function to generate lists of objects and associated metadata for analysis.
B:That description belongs to Amazon S3 Standard because S3 Standard is appropriate for data requiring regular access across multiple AZs; it is used to serve frequently accessed objects with low-latency retrieval, not to explain how Amazon S3 Inventory provides the function to generate lists of objects and associated metadata for analysis.
D:That description belongs to S3 bucket policy because bucket policies are resource-based JSON permissions for supported S3 actions; it is used to control allowed and denied access to an S3 bucket and its objects, not to explain how Amazon S3 Inventory provides the function to generate lists of objects and associated metadata for analysis.