Sitecore-10-NET-Developer Exam Dumps : Sitecore 10 .NET Developer Exam

The field helper is a Sitecore MVC helper that renders the content of a field in the view. It also enables the field to be editable in the Experience Editor or Horizon. To prevent a field from being edited, you can set the editable parameter to “false” in the field helper. For example, @Html.Sitecore().Field(“title”, new { editable = false }) will render the title field without the editing capabilities. This parameter overrides the default behavior of the field helper, which is to render the field as editable if the page is in edit mode. Setting the editable parameter to “false” can be useful for fields that are not meant to be changed by the content authors, such as system fields or fields that are populated by code. 

A placeholder key is a unique identifier that is used to refer to a specific placeholder in the presentation details of an item. A placeholder key is defined in the placeholder settings item that is linked to a rendering or a sublayout. A placeholder key can also be defined in the code or markup of a component. A placeholder key can be static or dynamic. A static placeholder key has a fixed value, such as /main. A dynamic placeholder key has a variable value, such as /main-{GUID}, where {GUID} is replaced by a unique identifier at runtime. Dynamic placeholders allow multiple instances of the same component to be added to a placeholder without conflicts. References:

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This answer is based on the Sitecore documentation of dynamic placeholders1. Dynamic placeholders are an extension of the regular Sitecore placeholders that allow you to add the same placeholder name several times across multiple renderings, and even within the same rendering. Dynamic placeholders generate a unique key for each placeholder instance, which ensures that the content within the placeholder is unique and not duplicated. Dynamic placeholders also enable you to build functionality that generates multiple placeholders within the same rendering dynamically. For example, you can use dynamic placeholders to create a tab component that can have any number of tabs, each with its own content. References:

• Dynamic placeholders
• Sitecore dynamic placeholders and JSS
• Walkthrough: Configure your components to use dynamic placeholders