AEM's default administrative username is "admin," and the default password is also "admin." It is crucial to change these defaults for security reasons post-installation.

The 'Container' Core Component allows authors to create Responsive layouts for content presentation, ensuring adaptability across various devices and screen sizes.

The Structure component in AEM is utilized to define the high-level structure and layout of a page template, influencing the arrangement of various content components.

The purpose of an AEM Workflow Launcher is to trigger workflows automatically based on specified events or conditions, enhancing efficiency in content management.

AEM development is commonly done using Java, making it the primary language for building applications and customizations on the platform.

To track user engagement, integrating AEM with Adobe Analytics is the ideal choice. Adobe Analytics offers robust capabilities for tracking and analyzing user interactions on websites.

AEM Dialogs in the Touch UI are used to define and manage component properties, making it easy for content authors to configure and interact with components.

OAuth 2.0 is a secure and widely used authentication method for RESTful APIs, providing a robust way to authorize external applications to access resources in AEM.

To include comments in Sightly, you use the {# Comment #} syntax. It helps document the code without affecting the rendering.

Monitoring AEM application performance is crucial to identify and address performance issues promptly. It helps maintain system reliability, improve user experience, and ensure efficient operation.