https://learning.sitecore.com/learn/course/766/play/957:342/sitecorer-10-net-developer-certification-exam-study-guide

Competency 1: Sitecore structure & platform

• Install Sitecore Experience Platform on a development workstation without the use of containers.
• Subject – How to use SIA.

https://www.c-sharpcorner.com/article/install-sitecore-10-step-by-step-using-sia/

Competency 2: Security & user management

• Configure item workflows for Content Authors, Editors, and Publishers.
• Subject – Workflow Commands.

https://doc.sitecore.com/xp/en/users/103/sitecore-experience-platform/workflows-and-the-workbox.html

• Create users and roles within the Sitecore platform.
• Subject – How to unlock a user.

https://doc.sitecore.com/xp/en/developers/103/platform-administration-and-architecture/edit-and-manage-a-user-account.html

• Manage permissions for items, roles, and users.
• Subject – What is Extranet Security.

https://doc.sitecore.com/xp/en/developers/103/platform-administration-and-architecture/security-domains.html#:~:text=Extranet%20%E2%80%94%20this%20domain%20is%20a,the%20content%20of%20the%20website

• Content Delivery – Understanding how it works

https://doc.sitecore.com/xp/en/developers/103/platform-administration-and-architecture/content-delivery–cd-.html#:~:text=The%20Content%20Delivery%20(CD)%20role,improved%20scalability%20and%20better%20performance

Competency 3: Item management

• Recognize the differences between the standard Sitecore databases used, such as Web and Master.
• Subject – Purpose Master database.

https://www.sitecorespark.com/article/databases-in-sitecore

• Use Sitecore packages to transfer Sitecore items and environment changes to another Sitecore environment. 
• Subject – How to use Layers.config + files load.

https://doc.sitecore.com/xp/en/developers/103/platform-administration-and-architecture/use-a-patch-file-to-customize-the-sitecore-configuration.html#control-the-load-order-of-configuration-files

• Create templates and standard values and set insert options to match the data structures outlined in a development plan.
• Subject – Define data structures.

https://doc.sitecore.com/xp/en/developers/103/sitecore-experience-manager/data-definition-and-template-overview.html#:~:text=A%20template%20is%20an%20item,that%20make%20up%20each%20item

• Create templates and standard values and set insert options to match the data structures outlined in a development plan.
• Subject – Standard Values + Token

https://doc.sitecore.com/xp/en/developers/103/sitecore-experience-manager/standard-values.html

• Field Template
• Subject – Field source

https://doc.sitecore.com/xmc/en/developers/xm-cloud/the-template-field-template.html#source

Competency 4: Layout & placeholders

• Define a placeholder on a layout, both dynamically and statically.
• Subject – Difference between both.

https://sitecore.stackexchange.com/questions/12220/whats-difference-between-static-and-dynamic-placeholder-how-to-choose-one-over

https://sitecore.stackexchange.com/questions/12220/whats-difference-between-static-and-dynamic-placeholder-how-to-choose-one-over

• Create layout definitions items within Sitecore and set the presentation details for a layout. 
• Subject – Using MVC, what is necessary to implement a layout.

Competency 5: Components, controls, & renderings

• Sitecore ASP.NET Core Rendering SDK:
• Create and register model-bound view components, custom view components, and partial view components.
• Subject  – Purpose each view

https://doc.sitecore.com/xp/en/developers/101/developer-tools/view-types.html

• Set the compatible renderings on a rendering definition item.

Competency 6: Sitecore Content Serialization

• Configure a Serialization module with included paths and rules.
• Subject – What is property use to define limit serialization. https://doc.sitecore.com/xp/en/developers/100/developer-tools/sitecore-content-serialization-configuration-reference.html

Competency 7: Containers

• Sitecore Container Repository (SCR)
• Subject – Purpose SCR.

https://doc.sitecore.com/xp/en/developers/100/developer-tools/sitecore-image-reference.html

Prepare the files necessary to deploy Sitecore XP to containers.  

• Launch a Sitecore environment with docker-compose. 
• Subject – Wich files is necessary launch container.

Good studies and Good Luck!