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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cost and Performance Optimization | 28% | - Right-sizing and capacity planning - Cost monitoring and optimization strategies - Resource performance tuning |
| Topic 2: Monitoring, Logging, and Remediation | 20% | - Automated remediation and operational workflows - Centralized logging and log analysis with AWS services - Metrics and monitoring using Amazon CloudWatch |
| Topic 3: Deployment, Provisioning, and Automation | 18% | - Infrastructure as Code using AWS CloudFormation - Automated deployment pipelines - Configuration management and orchestration tools |
| Topic 4: Security and Compliance | 18% | - Data protection and encryption - Security monitoring and auditing - Identity and access management (IAM) |
| Topic 5: Reliability and Business Continuity | 16% | - Data replication and recovery mechanisms - High availability and fault tolerance design - Backup and disaster recovery strategies |
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NEW QUESTION # 183
A company uses multiple Amazon RDS databases to support an application. The application receives all its traffic during weekdays and is idle during weekends. The company wants a solution to automatically manage the RDS DB instances during idle periods to optimize costs.
Which solution will meet these requirements?
Answer: D
Explanation:
The Instance Scheduler on AWS is an AWS-provided solution designed specifically to start and stop AWS resources such as Amazon RDS instances on a defined schedule. This directly aligns with the requirement to automatically manage RDS instances during predictable idle periods, such as weekends, to reduce costs.
RDS instances incur compute charges while running, even if idle. Stopping them during weekends eliminates those charges while retaining storage and backups. Instance Scheduler supports tag-based scheduling, centralized management, and automated start/stop workflows without custom scripting.
Option A introduces custom automation and ongoing maintenance overhead. Option C (Reserved Instances) is unsuitable because the databases are idle for long, predictable periods and Reserved Instances charge regardless of usage. Option D is incorrect because RDS does not support auto scaling of DB instance classes based on utilization.
Instance Scheduler is the most cost-effective and operationally efficient solution for this use case.
NEW QUESTION # 184
A company has a stateful web application that is hosted on Amazon EC2 instances in an Auto Scaling group. The instances run behind an Application Load Balancer (ALB) that has a single target group. The ALB is configured as the origin in an Amazon CloudFront distribution. Users are reporting random logouts from the web application.
Which combination of actions should a CloudOps engineer take to resolve this problem? (Choose two.)
Answer: C,D
Explanation:
Configure cookie forwarding in the CloudFront distribution cache behavior.
If CloudFront is not forwarding cookies, the origin (ALB/app) will not consistently receive the session cookie, causing users to appear "new" and get logged out. Forwarding cookies ensures the application can maintain user sessions correctly.
Enable sticky sessions on the ALB target group.
The application is stateful and stores session data on individual EC2 instances. Enabling ALB target group stickiness keeps a user's requests going to the same instance, preventing session loss and random logouts as traffic shifts between instances.
NEW QUESTION # 185
A media company hosts a public news and video portal on AWS. The portal uses an Amazon DynamoDB table with provisioned capacity to maintain an index of video files that are stored in an Amazon S3 bucket. During a recent event, millions of visitors came to the portal for news. This increase in traffic caused read requests to be throttled in the DynamoDB table. Videos could not be displayed in the portal.
The company's operations team manually increased the provisioned capacity on a temporary basis to meet the demand. The company wants the operations team to receive an alert before the table is throttled in the future. The company has created an Amazon Simple Notification Service (Amazon SNS) topic and has subscribed the operations team's email address to the SNS topic.
What should the company do next to meet these requirements?
Answer: C
Explanation:
The requirement is to alert before throttling occurs. For a DynamoDB table in provisioned capacity mode, throttling happens when demand approaches or exceeds provisioned throughput.
CloudWatch provides direct table metrics such as ConsumedReadCapacityUnits and ProvisionedReadCapacityUnits (and related utilization signals). Creating an alarm on ConsumedReadCapacityUnits with a threshold set close to the table's provisioned read capacity provides an early warning that the table is nearing its limit--before actual throttling prevents reads.
The alarm can publish directly to the existing SNS topic so the operations team is notified proactively.
NEW QUESTION # 186
Application A runs on Amazon EC2 instances behind a Network Load Balancer (NLB). The EC2 instances are in an Auto Scaling group and are in the same subnet that is associated with the NLB. Other applications from an on-premises environment cannot communicate with Application A on port 8080.
To troubleshoot the issue, a CloudOps engineer analyzes the flow logs. The flow logs include the following records:
* ACCEPT from 192.168.0.13:59003 # 172.31.16.139:8080
* REJECT from 172.31.16.139:8080 # 192.168.0.13:59003
What is the reason for the rejected traffic?
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract of AWS CloudOps Doocuments:
VPC Flow Logs show the request arriving and being ACCEPTed on dstport 8080 and the corresponding response being REJECTed on the return path to the client's ephemeral port (59003). AWS networking guidance states that security groups are stateful (return traffic is automatically allowed) while network ACLs are stateless and require explicit inbound and outbound rules for both directions. CloudOps operational guidance for VPC networking further notes that when you allow an inbound request (for example, TCP 8080) through a subnet's network ACL, you must also allow the outbound ephemeral port range (typically 1024-
65535) for the response traffic; otherwise, the return packets are dropped and appear as REJECT in flow logs.
The observed pattern-request accepted to 8080, response rejected to 59003-matches a missing outbound ephemeral-range allow on the subnet's NACL. Therefore, the cause is the subnet NACL, not security groups or on-premises ACLs. The remediation is to add an outbound ALLOW rule on the NACL for the appropriate ephemeral TCP port range back to the on-premises CIDR (and the corresponding inbound rule if asymmetric).
References:* AWS Certified CloudOps Engineer - Associate (SOA-C03) Exam Guide - Networking and Content Delivery* Amazon VPC - Network ACLs (stateless behavior and rule requirements)* Amazon VPC - Security Groups (stateful return traffic)* VPC Flow Logs - Record fields, ACCEPT/REJECT analysis
NEW QUESTION # 187
A CloudOps engineer has created an AWS Service Catalog portfolio and shared it with a second AWS account in the company, managed by a different CloudOps engineer.
Which action can the CloudOps engineer in the second account perform?
Answer: D
Explanation:
Per the AWS Cloud Operations and Service Catalog documentation, when a portfolio is shared across AWS accounts, the recipient account imports the shared portfolio.
The recipient CloudOps engineer cannot modify the original products or their configurations but can:
* Add products from the imported portfolio into their local portfolios for deployment,
* Control end-user access in the recipient account, and
* Manage local constraints or permissions.
However, the recipient cannot edit, delete, or reconfigure the shared products (Options B, C, and D). The source (owner) account retains full administrative control over products, launch roles, and lifecycle policies.
This model aligns with AWS CloudOps principles of centralized governance with distributed self-service deployment across multiple accounts.
Thus, Option A is correct-imported portfolios allow the recipient to add products to a local portfolio but not alter the shared configuration.
Reference: AWS Cloud Operations & Governance Guide - Managing Shared AWS Service Catalog Portfolios Across Multiple Accounts
NEW QUESTION # 188
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