SOA-C02 Exam Dumps - AWS Certified SysOps Administrator - Associate (SOA-C02)

Enabling consolidated control findings in Security Hub reduces duplication by merging findings for similar controls across multiple standards. This reduces the operational burden of prioritizing remediation based on multiple copies of the same findings.

Consolidated Control Findings: Merges findings for controls across standards to avoid duplicates, providing a clearer view of misconfigurations without the need for additional infrastructure or manual processing.

Least Operational Overhead: This solution is managed within Security Hub without the need for external tools or manual exports.

Using AWS Config aggregators, QuickSight visualization, or custom EC2-based solutions would introduce additional complexity and overhead.

Several factors can affect the availability of an S3 object through a presigned URL:

Expiration of Presigned URL: A presigned URL is valid only until its specified expiration time. Once expired, it becomes inaccessible.

Invalid Access Key: If the access key of the SysOps administrator who generated the presigned URL is revoked or rotated, the URL will no longer be valid.

Other options like enabling Block Public Access or changing the object ACL to All Users are not necessary for presigned URLs, as these URLs temporarily grant access regardless of public bucket settings.

AWS WAF (Web Application Firewall) is designed to protect web applications from common web exploits that could affect application availability, compromise security, or consume excessive resources. AWS WAF can help mitigate cross-site scripting (XSS) vulnerabilities by allowing users to create rules to filter specific types of HTTP requests.

Create a Web ACL:

Go to the AWS WAF & Shield console.

Click "Create web ACL" and specify a name and the AWS resource to protect (e.g., an Application Load Balancer).

Add Rules to Mitigate XSS:

Within the Web ACL, add a new rule.

Select "Rule builder" and choose a rule type. For mitigating XSS, use "AWS Managed Rules" or create a custom rule.

AWS Managed Rules include a predefined set for XSS that you can enable.

Configure the XSS Rule:

If using a custom rule, configure it to inspect requests and block any that contain XSS patterns.

Use regular expressions or specific patterns to identify malicious scripts.

Deploy the Web ACL:

Once configured, save the Web ACL.

Associate it with your Application Load Balancer or CloudFront distribution to start filtering requests.

Monitor and Adjust:

Monitor the requests being blocked by AWS WAF.

Adjust the rules as necessary to ensure legitimate traffic is not affected and the application remains protected.

References:

AWS WAF Developer Guide

AWS WAF Managed Rules

It's a best practice to use aws s3 commands (such as aws s3 cp) for multipart uploads and downloads, because these aws s3 commands automatically perform multipart uploading and downloading based on the file size. By comparison, aws s3api commands, such as aws s3api create-multipart-upload, should be used only when aws s3 commands don't support a specific upload need, such as when the multipart upload involves multiple servers, a multipart upload is manually stopped and resumed later, or when the aws s3 command doesn't support a required request parameter. https://aws.amazon.com/premiumsupport/knowledge-center/s3-multipart-upload-cli/

To reduce the time required for new instances to become available in an Auto Scaling group, pre-installing the necessary software in the AMI used by the Auto Scaling group is the most effective solution.

Use EC2 Image Builder:

Utilize EC2 Image Builder to create a custom AMI that includes all the required software and configurations.

This reduces the setup time during instance launch, as the user data script will no longer need to install the software.

When experiencing slow file retrieval from an EFS file system as usage increases, configuring the file system for Provisioned Throughput can improve performance.

Provisioned Throughput:

Amazon EFS offers two throughput modes: Bursting Throughput and Provisioned Throughput.

With Provisioned Throughput, you can set a fixed throughput limit for your file system independent of the amount of data stored.

Configuring Provisioned Throughput:

Go to the EFS console and select your file system.

Click on "Manage File System" and then "Edit."

Choose the "Provisioned Throughput" option and set the desired throughput limit.

Benefits:

Provisioned Throughput ensures consistent performance and is beneficial for applications with high throughput requirements.

It helps in cases where the default Bursting Throughput mode might not provide sufficient throughput during peak times.

References:

Amazon EFS Performance

Managing Amazon EFS File Systems

ï‚· Enable Access Logging for the ALB:

Access logging provides detailed information about requests sent to your load balancer.

Steps:

Go to the AWS Management Console.

Navigate to EC2 and select "Load Balancers."

Select your Application Load Balancer.

Under the "Attributes" tab, enable "Access logs."

Specify an S3 bucket where the logs will be saved.

To meet the requirements of logging all access attempts to the S3 bucket and receiving immediate notification about any delete events, the company can enable S3 server access logging and set up an Amazon Simple Notification Service (Amazon SNS) notification for the S3 bucket. The S3 server access logs will record all access attempts to the bucket, including delete events, and the SNS notification can be configured to send an alert when a DeleteObject event occurs.