POLL2KNOW - Polls list

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26. What is the AWS service used to centrally manage backups across multiple AWS services?

What is the AWS service used to centrally manage backups across multiple AWS services?...

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25. Which service can cache frequently accessed data in memory to reduce database load?

Which service can cache frequently accessed data in memory to reduce database load?...

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24. Which two components are required for an EC2 instance in a public subnet to access the internet directly using IPv4?

Which two components are required for an EC2 instance in a public subnet to access the internet directly using IPv4?...

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23. A company wants to run containers without managing EC2 instances. Which option is appropriate?

A company wants to run containers without managing EC2 instances. Which option is appropriate?...

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22. Which AWS service is used to collect metrics, logs, and create alarms for resources?

Which AWS service is used to collect metrics, logs, and create alarms for resources?...

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21. Which service records API activity and account actions for auditing?

Which service records API activity and account actions for auditing?...

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20. What service provides centralized encryption key management for AWS services?

What service provides centralized encryption key management for AWS services?...

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19. Which two actions generally reduce costs for steady-state EC2 workloads?

Which two actions generally reduce costs for steady-state EC2 workloads?...

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18. Which AWS database engine is MySQL- and PostgreSQL-compatible and designed for high performance and availability?

Which AWS database engine is MySQL- and PostgreSQL-compatible and designed for high performance and availability?...

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17. A system must publish one message to multiple subscribers such as SQS queues and Lambda functions. Which service is best?

A system must publish one message to multiple subscribers such as SQS queues and Lambda functions. Which service is best?...

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16. Which service is commonly used to decouple application components using message queues?

Which service is commonly used to decouple application components using message queues?...

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15. Which storage class is designed for long-term archival data that is rarely accessed and can tolerate retrieval delays?

Which storage class is designed for long-term archival data that is rarely accessed and can tolerate retrieval delays?...

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14. Which AWS service is serverless and executes code in response to events?

Which AWS service is serverless and executes code in response to events?...

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13. A company wants private network connectivity from its data center to AWS with consistent performance. Which service is appropriate?

A company wants private network connectivity from its data center to AWS with consistent performance. Which service is appropriate?...

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12. Which two services can protect a public web application against common web exploits and DDoS attacks?

Which two services can protect a public web application against common web exploits and DDoS attacks?...

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11. What should be used to grant an EC2 instance temporary permissions to access S3 without storing long-term access keys?

What should be used to grant an EC2 instance temporary permissions to access S3 without storing long-term access keys?...

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10. Which AWS service can securely store database credentials and automatically rotate them?

Which AWS service can securely store database credentials and automatically rotate them?...

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9. What is the primary purpose of an Application Load Balancer?

What is the primary purpose of an Application Load Balancer?...

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8. Which two options improve EC2 availability across infrastructure failures?

Which two options improve EC2 availability across infrastructure failures?...

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7. Which service is designed for NoSQL key-value and document workloads at massive scale?

Which service is designed for NoSQL key-value and document workloads at massive scale?...

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