I Have a Service Composition with Three Services

question 28

Multiple Choice

I have a service composition with three services. Service A retrieves a list of country codes from a database and keeps this data in memory while interacting with Service B and Service C. However, because Service A is concurrently invoked many times, and because each instance of Service A loads its own copy of the country code data into memory, the demands on the overall infrastructure become too high and performance and reliability are negatively affected. Which service-orientation principle can be applied to help solve this problem? Select the correct answer.

• A) Service Reusability
• B) Service Autonomy
• C) Service Abstraction
• D) Service Statelessness

---

Definitions:

Net Taxes

The difference between the taxes paid to the government and the transfers or subsidies received from it.

Government Purchases

Government purchases involve the spending by government entities on goods and services, including investments in public infrastructure, which can influence economic activity.

Transfer Payments

Payments made by the government to individuals or entities without any service or goods being received in return, such as social security benefits.

Property Tax

Taxes levied by governments on property owners based on the value of their property, including land and buildings.