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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Networking and Content Delivery | 18% | - Configure and maintain AWS networking services
|
| Topic 2: Reliability and Business Continuity | 22% | - Design and implement high availability and fault tolerance
|
| Topic 3: Deployment, Provisioning, and Automation | 20% | - Automate operational tasks and workflows
|
| Topic 4: Security and Compliance | 18% | - Enforce security controls and compliance requirements
|
| Topic 5: Monitoring, Logging, Analysis, Remediation, and Performance Optimization | 22% | - Remediate issues and optimize performance
|
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質問 # 103
A company needs to log and audit any principal that publishes messages to Amazon Simple Notification Service (Amazon SNS) topics and Amazon Simple Queue Service (Amazon SQS) queues. The company wants to ensure that all communication with these services uses VPC endpoints.
Which combination of solutions will meet these requirements? (Select TWO.)
正解：A、D
解説：
Comprehensive and Detailed Explanation From Exact Extract of AWS CloudOps Documents:
To meet the requirement to log and audit any principal that publishes to SNS topics and interacts with SQS queues, the correct service is AWS CloudTrail, because CloudTrail records API activity (who did what, when, and from where). Enabling data events (where supported/required for deeper visibility) provides detailed records for operations such as publishing messages and sending/receiving messages. Delivering CloudTrail logs to Amazon S3 provides durable retention and supports querying workflows.
To ensure that communication uses VPC endpoints, the company should configure VPC endpoints for SNS and SQS and then validate usage by inspecting CloudTrail event records. CloudTrail includes endpoint- related context fields (for example, a VPC endpoint identifier) that allow auditors to confirm that the request path used a VPC endpoint rather than traversing the public internet. This directly addresses the "must use VPC endpoints" control with auditable evidence.
The other options do not satisfy both requirements. CloudWatch Logs does not automatically capture SNS
/SQS API caller identity for publish/send/receive operations in the same authoritative way CloudTrail does.
EventBridge can capture service events but is not the primary audit log of API calls and does not inherently prove VPC endpoint usage per request. Inspecting a VPC endpoint field in CloudWatch Logs is not the standard audit mechanism for these API calls.
References:
AWS CloudTrail User Guide - Event records, management events, data events, delivery to Amazon S3 Amazon SNS Developer Guide - API actions and logging/auditing considerations Amazon SQS Developer Guide - API actions and logging/auditing considerations Amazon VPC User Guide - Interface VPC endpoints (AWS PrivateLink) and private access to AWS services
質問 # 104
A company has two AWS accounts connected by a transit gateway. Each account has one VPC in the same AWS Region. The company wants to simplify inbound and outbound rules in security groups by referencing security group IDs instead of IP CIDR blocks.
Which solution will meet this requirement?
正解：A
解説：
AWS Transit Gateway supports security group referencing across VPCs, but this feature must be explicitly enabled on each transit gateway attachment. Once enabled, security groups in one VPC can reference security groups in another VPC attached to the same transit gateway, simplifying rule management and improving security posture.
Enabling the feature on the transit gateway itself is not sufficient; it must be enabled per attachment to allow traffic evaluation based on security group IDs. This approach avoids brittle CIDR-based rules and allows dynamic scaling without rule updates.
Option A removes the transit gateway, which contradicts the existing architecture. Option B is incomplete.
Option D does not address security group referencing.
Thus, enabling security group referencing on each transit gateway attachment is the correct solution.
質問 # 105
A company runs a retail website on multiple Amazon EC2 instances behind an Application Load Balancer (ALB). The company must secure traffic to the website over an HTTPS connection.
Which combination of actions should a SysOps administrator take to meet these requirements? (Select TWO.)
正解：B、C
質問 # 106
A multinational company uses an organization in AWS Organizations to manage over 200 member accounts across multiple AWS Regions. The company must ensure that all AWS resources meet specific security requirements.
The company must not deploy any EC2 instances in the ap-southeast-2 Region. The company must completely block root user actions in all member accounts. The company must prevent any user from deleting AWS CloudTrail logs, including administrators. The company requires a centrally managed solution that the company can automatically apply to all existing and future accounts. Which solution will meet these requirements?
正解：B
解説：
AWS CloudOps governance best practices emphasize centralized account management and preventive guardrails. AWS Control Tower integrates directly with AWS Organizations and provides "Region deny controls" and "Service Control Policies (SCPs)" that apply automatically to all existing and newly created member accounts. SCPs are organization-wide guardrails that define the maximum permissions for accounts. They can explicitly deny actions such as launching EC2 instances in a specific Region, or block root user access.
To prevent CloudTrail log deletion, SCPs can also include denies on cloudtrail:DeleteTrail and s3:DeleteObject actions targeting the CloudTrail log S3 bucket. These SCPs ensure that no user, including administrators, can violate the compliance requirements.
"Use AWS Control Tower to establish a secure, compliant, multi-account environment with preventive guardrails through service control policies and detective controls through AWS Config." This approach meets all stated needs: centralized enforcement, automatic propagation to new accounts, region-based restrictions, and immutable audit logs. Options A, B, and D either detect violations reactively or lack complete enforcement and automation across future accounts.
質問 # 107
A company has multiple AWS accounts. A CloudOps engineer uses a sandbox account to create and verify IAM policies for use in a production account. The CloudOps engineer uses AWS CloudFormation to deploy policies to the sandbox account for testing. When tests pass, the CloudOps engineer deploys the policies to production. The CloudOps engineer has configured AWS CloudTrail in both the sandbox account and the production account.
The CloudOps engineer wants to detect any changes to the IAM policies after the policies have been deployed by CloudFormation. The CloudOps engineer must receive notifications for any changes to the policies.
Which solution will meet these requirements with the LEAST administrative effort?
正解：A
解説：
CloudFormation drift detection is designed to detect any configuration changes made outside CloudFormation (such as manual edits to IAM policies). By wiring CloudTrail → EventBridge → Lambda → Drift Detection → SNS, you automatically trigger drift checks when relevant changes occur and notify the CloudOps engineer if the actual IAM policies differ from the CloudFormation template. This leverages managed services and avoids building your own comparison logic, providing the least administrative effort among the options.
質問 # 108
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