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| Section | Weight | Objectives |
|---|---|---|
| Deployment, Provisioning, and Automation | 20% | - Deploy and provision resources consistently
|
| Security and Compliance | 18% | - Enforce security controls and compliance requirements
|
| Reliability and Business Continuity | 22% | - Implement backup, restore, and disaster recovery strategies
|
| Networking and Content Delivery | 18% | - Optimize and troubleshoot network connectivity and performance
|
| Monitoring, Logging, Analysis, Remediation, and Performance Optimization | 22% | - Remediate issues and optimize performance
|
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NEW QUESTION # 284
A company's reporting job that previously ran in 15 minutes is now taking 1 hour. The application runs on Amazon EC2 and extracts data from an Amazon RDS for MySQL DB instance.
CloudWatch metrics show high Read IOPS even when reports are not running. The CloudOps engineer must improve performance and availability.
Which solution will meet these requirements?
Answer: D
Explanation:
RDS read replicas offload read traffic from the primary database, improving performance and availability. By directing reporting queries to the reader endpoint, the primary instance is freed from heavy read workloads.
ElastiCache is unsuitable for complex SQL reporting. CloudFront cannot front a database. Increasing instance size does not address inefficient read scaling.
Thus, read replicas are the correct solution.
NEW QUESTION # 285
A CloudOps engineer creates a new VPC that contains a private subnet, a security group that allows all outbound traffic, and an endpoint for Amazon EC2 Instance Connect in a private subnet. The CloudOps engineer associates the security group with EC2 Instance Connect.
The CloudOps engineer launches an EC2 instance from an Amazon Linux Amazon Machine Image (AMI) in the private subnet. The CloudOps engineer launches the EC2 instance without an SSH key pair.
The CloudOps engineer tries to connect to the instance by using the EC2 Instance Connect endpoint.
However, the connection fails.
How can the CloudOps engineer connect to the instance?
Answer: A
Explanation:
Amazon EC2 Instance Connect enables secure SSH access to EC2 instances without requiring a traditional SSH key pair. However, although authentication is handled through IAM and the Instance Connect endpoint, the underlying network requirements for SSH still apply.
For EC2 Instance Connect to function, the EC2 instance's security group must allow inbound traffic on TCP port 22 from the network where the Instance Connect endpoint resides. In this case, both the endpoint and the EC2 instance are in the private subnet, so the security group must explicitly allow SSH traffic from that subnet or from the security group associated with the endpoint.
Allowing HTTPS traffic on port 443 does not enable SSH access. Systems Manager Session Manager is a separate access mechanism and does not resolve an EC2 Instance Connect failure. Recreating the instance with an SSH key pair is unnecessary because EC2 Instance Connect does not rely on key pairs.
Therefore, enabling inbound SSH traffic on port 22 from the private subnet resolves the connection issue.
NEW QUESTION # 286
A company hosts an application on AWS that uses a 5 TB Amazon RDS for MySQL database.
The company performs frequent micro updates that cannot be interrupted. Sometimes structural changes to the database cause issues for the application. When an issue occurs, the company immediately receives a notification through automated monitoring.
The company wants to undo the problematic database changes as soon as possible. The company wants to transition from RDS for MySQL to an Amazon Aurora MySQL-Compatible Edition cluster.
Which solution will meet these requirements?
Answer: B
Explanation:
Aurora MySQL-Compatible Edition supports the backtrack feature, which allows the database cluster to be rewound to an earlier point in time without restoring a full snapshot. For a large 5 TB database with frequent updates, backtracking provides a much faster way to undo problematic structural changes while minimizing interruption compared with snapshot restoration.
NEW QUESTION # 287
A financial services company stores customer images in an Amazon S3 bucket in the us-east-1 Region. To comply with regulations, the company must ensure that all existing objects are replicated to an S3 bucket in a second AWS Region. If an object replication fails, the company must be able to retry replication for the object.
What solution will meet these requirements?
Answer: C
Explanation:
Per the AWS Cloud Operations and S3 Data Management documentation, Cross-Region Replication (CRR) automatically replicates new objects between S3 buckets across Regions. However, CRR alone does not retroactively replicate existing objects created before replication configuration. To include such objects, AWS introduced S3 Batch Replication.
S3 Batch Replication scans the source bucket and replicates all existing objects that were not copied previously. Additionally, it can retry failed replication tasks automatically, ensuring regulatory compliance for complete dataset replication.
S3 Replication Time Control (S3 RTC) guarantees predictable replication times for new objects only-it does not cover previously stored data. S3 Lifecycle rules (Option D) move or transition objects between storage classes or buckets, but not in a replication context.
Therefore, the correct solution is to use S3 Cross-Region Replication (CRR) combined with S3 Batch Replication to ensure all current and future data is synchronized across Regions with retry capability.
NEW QUESTION # 288
A company plans to host an application on Amazon EC2 instances distributed across multiple Availability Zones. The application must scale to millions of requests per second and handle sudden and volatile traffic patterns. The solution must use a single static IP address per Availability Zone.
Which solution will meet these requirements?
Answer: C
Explanation:
AWS Global Accelerator provides static IP addresses (one per Availability Zone) and routes traffic over the AWS global network to optimal endpoints. It is designed for applications that require extremely high throughput, low latency, and rapid response to traffic spikes.
Global Accelerator automatically routes traffic to healthy endpoints and shifts traffic in response to failures or performance degradation. It supports sudden and volatile traffic patterns and integrates seamlessly with ALBs, NLBs, and EC2 instances.
ALBs and NLBs do not provide static IP addresses per AZ. SQS is not a traffic distribution service.
Therefore, AWS Global Accelerator is the correct solution.
NEW QUESTION # 289
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