B is the perfect answer. AWS lambda is a serverless function on AWS and it's also a platform for executing coding on AWS

AWS Personal Health Dashboard provides alerts and remediation guidance

when AWS is experiencing events that may impact you.

While the Service Health Dashboard displays the general status of AWS services,

personal Health Dashboard gives you a personalized view into the performance

and availability of the AWS services underlying your AWS resources.

Reference:

https://aws.amazon.com/premiumsupport/technology/personal-health-dashboard/

Answer is A and D: Other answers are Cost Optimization, Security and Service Limits

Answer is C.

Data Security & Encryption (both in transit and at rest) is customer responsibility.

Firmware is applicable for physical hardware, so it is AWS responsibility.

AWS Marketplace is a digital catalog with thousands of software listings

from independent software vendors

that make it easy to find, test, buy, and deploy software that runs on AWS.

Reference:

https://aws.amazon.com

Developer and IT staff productivity accounted for nearly 30% of overall financial benefits.

The remaining benefits were driven by the flexibility and agility of

Amazon cloud infrastructure services,

which make it easier to trial new business models, support revenue-generating applications,

and provide more reliable services to end users.

Reference:

https://media.amazonwebservices.com/IDC_Business_Value_of_AWS_Accelerates_Over_time.pdf

Key: physical isolation

=> Answer: A

More hints:

Use Dedicated Hosts to launch Amazon EC2 instances on physical servers that are dedicated for your use.

Dedicated Hosts give you additional visibility and control over how instances are placed on a physical server,

and you can reliably use the same physical server over time.

As a result, Dedicated Hosts enable you to use your existing server-bound software licenses

like Windows Server and address corporate compliance

and regulatory requirements.

Answer is D.

One of the benefits of AWS CloudFormation = infrastructure as code.

(No resources are manually created, which is excellent for control). Changes to the infrastructure are reviewed through code.

Answer - B

Key: If matrix then Cloud Watch and if API then it should be Cloud Trail

B is the correct answer because a customer can use "consolidated billing" with AWS Organizations