A developer creates the following code snippet to implement a simple polling importer to fetch stock prices from an external source:

The polling importer needs to fetch stock prices for a specific stock symbol and needs to be triggered every 5 minutes.
Which node structure should the developer create in CRX to make sure that the code shown is executed successfully?

• A. Option A
• B. Option D
• C. Option C
• D. Option B

A developer needs to implement a service component that should be manually configured by operations to react on operational circumstances. The service component should NOT be active by default. The service has the properties myservice.name (one string value) and myservice.stringValues (a list of the string values) to be configured.
The developer needs to use OSGi Metatype annotations to make those properties configurable in the Apache Felix Web Console.
Which set of steps should the developer take to meet these requirements?

• A. 1. For the class fields myserviceName and myserviceStringValues, add a @AttributeDefinition annotation each with names set to myservice.name and myservice.stringValues respectively.2. Use the @Component annotation with configurationFactory = true on the service component class.3. Use the @Service service component class.4. Use the activate method of the service component class to get the configuration annotation interface class injected.
• B. 1. Create an annotation interface as inner class of the service component and annotate it with @ObjectClassDefinition.2. Apply @AttributeDefinition for the methods myservice_name and myservice_stringValues.3. Use the @Component annotation with configurationPolicy = ConfigurationPolicy.REQUIRE on the service component.4. Use the @Designate annotation to link the service component to the created configuration annotation interface.5. Use the activate method of the service component class to get the configuration annotation interface class injected.
• C. 1. Create an annotation interface as inner class of the service component and annotate it with @ObjectClassDefinition.2. Apply @AttributeDefinition for the methods myservice.name and myservice.stringValues.3. Use the @Component annotation with configurationPolicy = ConfigurationPolicy.REQUIRE on the service component.4. Use the @Designate annotation to link the service component to the created configuration annotation interface.5. Use the activate method of the service component class to get the configuration annotation interface class injected.
• D. 1. For the class fields myserviceName and myserviceStringValues, add a @Property annotation each with names set to myservice.name and myservice.stringValues respectively.2. Use the @Component annotation with configurationFactory = true on the service component class.3. Use the @Service service component class.4. The configuration is automatically injected into the field by the service component runtime.

A developer needs to ensure that the path /content/<proj>/segments exists on all environments with the correct initial content that the developer provides in a package. Content that exists in that path should NOT be affected.
Which import mode should the developer use in the filter definition?

• A. replace
• B. merge
• C. optional
• D. update

A developer needs to upgrade existing components (Proxy Components) based on Core Components Version 1(v1) to Core Components Version 2(v2).
How should the developer upgrade to V2 Core Components?

• A. Create a new Proxy Component and set sling:resourceType property to V2 Core Component
• B. Modify the sling:resourceSuperType property on the proxy component to point to V2 Component
• C. Proxy Components will be automatically upgraded to the V2 Core Component on AEM Restart
• D. Modify the sling:resourceSuperType property on the V1 core components to point to V2 Component

A developer needs to implement a header component for a website. The component has the following requirements:
- The component should be configured once on the page highest in the hierarchy.
- The header component on pages lower in the hierarchy should look the same and show the same data.
- If necessary, the configuration can be overwritten on a child page.
- The component should show a list of links that are configured in the header component.
Which code snippet for returning the list of pages should the developer use?

• A. "public String[] getHeaderLinks(Resource componentResource) {
  final HierarchyNodeInheritanceValueMap properties = new HierarchyNodeInheritanceValueMap (componentResource); return properties.getInherited(HEADER_PAGE_LIST, String[].class);
  }"
• B. "public String[] getHeaderLinks(Resource componentResource) {
  final HierarchyNodeInheritanceVauleMap properties = componentResource.adaptTo(HierarchyNodeInheritanceVauleMap.class); return properties.getInherited(HEADER_PAGE_LIST, String[].class);
  }"
• C. "public String[] getHeaderLinks(Page page) {
  final Resource pageContent = page.getContentResource();
  final ComponentInheritanceValueMap properties = ComponentInheritanceValueMap(pageContent); return properties.get(HEADER_PAGE_LIST, String[].class);
  }"
• D. "public String[] getHeaderLinks(Resource componentResource) {
  final ComponentInheritanceValueMap properties = componentResource.adaptTo(ComponentInheritanceValueMap.class); return properties.getInherited(HEADER_PAGE_LIST, String[].class);
  }"