Azure Active Directory (Azure AD), now known as Microsoft Entra ID, refers to a cloud-based identity and access management service used to manage user identities, authentication, authorization, and secure access to applications and resources. It supports user and group management, single sign-on (SSO), multi-factor authentication (MFA), conditional access policies, and identity governance across cloud and hybrid environments. The skill is applied in work settings to manage directory services, enforce access controls, and maintain secure authentication for organizational systems.

Microsoft 365 refers to a suite of cloud-based productivity and collaboration applications used to create documents, manage communication, store files, and coordinate work across teams. It is applied in business and administrative settings to support word processing, spreadsheets, presentations, email, scheduling, and shared document management. The skill involves using these tools to organize information, streamline routine tasks, and maintain efficient workplace communication and collaboration.

Microsoft OneDrive is a cloud storage service provided by Microsoft that allows users to store, share and access files from anywhere and on any device with an internet connection. It enables collaboration among users by allowing them to share and edit files in real-time. OneDrive offers features such as version history, file sharing controls, and advanced security measures to protect user data. It is integrated into Microsoft Office suite and can be accessed through a desktop application, web browser, or mobile app.

Office 365 Exchange Online refers to a cloud based email and calendar service used for managing business communications, shared mailboxes, and message routing. It is used to configure mail flow, mailbox settings, security policies, and access controls in workplace environments. The skill supports administration, troubleshooting, and maintenance of organizational email services across desktop and mobile clients.

OneDrive for Business refers to a cloud based file storage and sharing service used to store, organize, synchronize, and access work documents across devices. It is applied in professional settings to support collaboration by allowing teams to share files, control access, and work on documents together. It is also used to manage document versions and maintain availability of files for business tasks and remote work.