I am trying to achieve Replication through code in AEM as cloud serviceAny pointers / examples will help   

@KannanCh2 To clear dispatcher cache:1. by Replicating the page2. by using acs commons https://adobe-consulting-services.github.io/acs-aem-commons/features/dispatcher-ttl/ To clear Default Fastly CDN cacheThis can be cleared using purge call by using the x-aem-purge-key provided by Adobe for each en...

@KannanCh2 The default HTML/Text caching setting can be disabled by defining the DISABLE_DEFAULT_CACHING variable in global.varsDefine DISABLE_DEFAULT_CACHING The Surrogate-Control header applies to the Adobe managed CDN. We can use this header and set it based on our requirements <LocationMatch "^/...

@AnHuaZh Refer to the  Exam Prep Guide mentioned in the below page Developer Expert certification | Adobe Experience Manager

@Keerthana_Selvan Can you check and confirm if you used the template from below link while creating siteReleases · adobe-rnd/aem-boilerplate-xwalk (github.com)

@KannanCh2 You can follow below documentation for using Universal editor in AEM https://experienceleague.adobe.com/en/docs/experience-manager-cloud-service/content/implementing/developing/universal-editor/getting-started

@NickWe Instead of calling servlets from filter, the better approach would be to move the logic present in servlet to a service class and call the service in filter.

@SUNITACH1 There is no option to modify or update the report.You will have to generate new report again with required fields.

@Mahesh_Gunaje You can find dispatcher version from the dispatcher logs toosearch for the below/similar entry in dispatcher.log. Here 4.3.6 specifies the dispatcher versionDispatcher initialized (build 4.3.6/apache-2.4-linux-x86_64-ssl1.1)

@varaande You might have taken a backup of AEM server before the upgrade. You can try to restore the same backup to revert to previous version