AD0-E103 Free Practice Test

A banking AEM application contains functionality to calculate a mortgage rate based on user input. A servlet in place calculates the result in the backend. A call to an internal third-party REST service is required to retrieve the average object value based on a given zip code.
The following three service interfaces are used:
MortgageCalculationServlet, MortgageCalculationService and ObjectValueLookupRestService where MortgageCalculationServlet has a dependency to MortgageCalculationService and MortgageCalculationService has a dependency to ObjectValueLookupRestService.
The calculation has many combinations of input parameters and edge cases, so the JUnit coverage must be as high as possible.
Which two strategies should the developer use to ensure testability of the application code? (Choose two)

1. A. Use the standard OSGi @Reference annotation to wire the dependencies in application code
2. B. Use BundleContext.getServiceReference(...) and BundleContext.getService(...) in application code to look up for the required services just before usage
3. C. Deploy a third party dependency injection container to wire dependencies more efficiently in application code
4. D. Use a mock framework to be able to create and inject mocks in the test code
5. E. Use static methods to avoid boilerplate in application code

Correct Answer: AD

A developer creates a Sling Servlet. The Sling Servlet is bound to a path (/service/sling/sample). Refer to the resulting code below.
@Component (immediate=true, service = {Servlet.class})
@SlingServletPaths(value = {"/service/sling/sample"})
What should the developer do to make the servlet access controlled using the default ACLs?

1. A. Add @SlingServletPrefix (value = "/apps") annotation
2. B. Use @SlingServletResourceTypes instead of @SlingServletPaths
3. C. Modify @SlingServletPaths(value = {"/bin/sling/sample"})
4. D. Add @SlingServletName(servletName = "AccessControlServlet") annotation

Correct Answer: B

In which two ways can a developer keep simple and maintanable CRX Access Control Lists? (Choose two)

1. A. Use Deny statements extensively
2. B. Delete the `everyone` group
3. C. Use Deny statements sparingly
4. D. Assign access rights to user groups rather than users
5. E. Assign access rights user by user

Correct Answer: CD

A developer wants to automatically truncate request log files once they exceed 10 MB. Which OSGi configuration should the developer modify?

1. A. Apache Sling Logging Configuration
2. B. Adobe Granite Log Analysis Service
3. C. Apache Sling Customizable Request Data Logger
4. D. Apache Sling Logging Writer Configuration

Correct Answer: D

An AEM site experiences slower page loads. A developer needs to identify the slow running requests. How should a developer analyze the requests with long response times?

1. A. Use proxy.jar with the following command java -jar proxy.jar <host> <remoteport> <localport> to debug the webserver and AEM server communication
2. B. Use rlog.jar with the following command $ java -jar ../opt/helpers/rlog.jar -n 10 request.log to identify long running requests
3. C. Download Heapdumps from Tools > Operations > Diagnosis and analyze the Heapdumps using the Memory Analyzer Tool
4. D. Embed /libs/foundation/components/timing component in the Page Component and verify the page load time

Correct Answer: B