AWS安全审计：追踪前员工操作与降低成本的策略

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Topic 1

Question #28

The Information Technology department has stopped using Classic Load Balancers and switched to Application Load Balancers to save costs.

After the switch, some users on older devices are no longer able to connect to the website.

What is causing this situation?

A. Application Load Balancers do not support older web browsers.

B. The Perfect Forward Secrecy settings are not congured correctly.

C. The intermediate certicate is installed within the Application Load Balancer.

D. The cipher suites on the Application Load Balancers are blocking connections.

Correct Answer:

Community vote distribution

D (100%)

Topic 1

Question #29

A security team is responsible for reviewing AWS API call activity in the cloud environment for security violations. These events must be recorded

and retained in a centralized location for both current and future AWS regions.

What is the SIMPLEST way to meet these requirements?

A. Enable AWS Trusted Advisor security checks in the AWS Console, and report all security incidents for all regions.

B. Enable AWS CloudTrail by creating individual trails for each region, and specify a single Amazon S3 bucket to receive log les for later

analysis.

C. Enable AWS CloudTrail by creating a new trail and applying the trail to all regions. Specify a single Amazon S3 bucket as the storage

location.

D. Enable Amazon CloudWatch logging for all AWS services across all regions, and aggregate them to a single Amazon S3 bucket for later

analysis.

Correct Answer:

Reference:

https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-create-a-trail-using-the-console-rst-time.html

Community vote distribution

C (90%) 10%

Topic 1

Question #30

A Security Administrator is performing a log analysis as a result of a suspected AWS account compromise. The Administrator wants to analyze

suspicious AWS

CloudTrail log les but is overwhelmed by the volume of audit logs being generated.

What approach enables the Administrator to search through the logs MOST eciently?

A. Implement a €write-only € CloudTrail event lter to detect any modications to the AWS account resources.

B. Congure Amazon Macie to classify and discover sensitive data in the Amazon S3 bucket that contains the CloudTrail audit logs.

C. Congure Amazon Athena to read from the CloudTrail S3 bucket and query the logs to examine account activities.

D. Enable Amazon S3 event notications to trigger an AWS Lambda function that sends an email alarm when there are new CloudTrail API

entries.

Correct Answer:

Reference:

https://docs.aws.amazon.com/athena/latest/ug/cloudtrail-logs.html

Community vote distribution

C (67%) A (33%)

Topic 1

Question #31

During a recent security audit, it was discovered that multiple teams in a large organization have placed restricted data in multiple Amazon S3

buckets, and the data may have been exposed. The auditor has requested that the organization identify all possible objects that contain personally

identiable information (PII) and then determine whether this information has been accessed.

What solution will allow the Security team to complete this request?

A. Using Amazon Athena, query the impacted S3 buckets by using the PII query identier function. Then, create a new Amazon CloudWatch

metric for Amazon S3 object access to alert when the objects are accessed.

B. Enable Amazon Macie on the S3 buckets that were impacted, then perform data classication. For identied objects that contain PII, use

the research function for auditing AWS CloudTrail logs and S3 bucket logs for GET operations.

C. Enable Amazon GuardDuty and enable the PII rule set on the S3 buckets that were impacted, then perform data classication. Using the PII

ndings report from GuardDuty, query the S3 bucket logs by using Athena for GET operations.

D. Enable Amazon Inspector on the S3 buckets that were impacted, then perform data classication. For identied objects that contain PII,

query the S3 bucket logs by using Athena for GET operations.

Correct Answer:

Community vote distribution

B (100%)

Topic 1

Question #32

During a recent internal investigation, it was discovered that all API logging was disabled in a production account, and the root user had created

new API keys that appear to have been used several times.

What could have been done to detect and automatically remediate the incident?

A. Using Amazon Inspector, review all of the API calls and congure the inspector agent to leverage SNS topics to notify security of the change

to AWS CloudTrail, and revoke the new API keys for the root user.

B. Using AWS Cong, create a cong rule that detects when AWS CloudTrail is disabled, as well as any calls to the root user create-api-key.

Then use a Lambda function to re-enable CloudTrail logs and deactivate the root API keys.

C. Using Amazon CloudWatch, create a CloudWatch event that detects AWS CloudTrail deactivation and a separate Amazon Trusted Advisor

check to automatically detect the creation of root API keys. Then use a Lambda function to enable AWS CloudTrail and deactivate the root API

keys.

D. Using Amazon CloudTrail, create a new CloudTrail event that detects the deactivation of CloudTrail logs, and a separate CloudTrail event

that detects the creation of root API keys. Then use a Lambda function to enable CloudTrail and deactivate the root API keys.

Correct Answer:

Community vote distribution

B (87%) 13%

Topic 1

Question #33

An application has a requirement to be resilient across not only Availability Zones within the application's primary region but also be available

within another region altogether.

Which of the following supports this requirement for AWS resources that are encrypted by AWS KMS?

A. Copy the application's AWS KMS CMK from the source region to the target region so that it can be used to decrypt the resource after it is

copied to the target region.

B. Congure AWS KMS to automatically synchronize the CMK between regions so that it can be used to decrypt the resource in the target

region.

C. Use AWS services that replicate data across regions, and re-wrap the data encryption key created in the source region by using the CMK in

the target region so that the target region's CMK can decrypt the database encryption key.

D. Congure the target region's AWS service to communicate with the source region's AWS KMS so that it can decrypt the resource in the

target region.

Correct Answer:

Community vote distribution

B (78%) C (22%)

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