The long form of SDI is . . . . . . . .

multiple document interface
single document interface
single data interface
system document interface

The correct answer is: C. single data interface

SDI stands for Single Data Interface. It is a software architecture that allows multiple applications to access and share data from a single data source. This can be useful for applications that need to access data from multiple sources, such as a customer relationship management (CRM) system and a financial management system.

A multiple document interface (MDI) is a user interface that allows multiple documents to be opened and displayed in a single window. This can be useful for applications that need to work with multiple documents, such as a word processing program or a spreadsheet program.

A single document interface (SDI) is a user interface that allows only one document to be opened and displayed at a time. This can be useful for applications that need to focus on a single document, such as a text editor or a web browser.

A system document interface (SDI) is a software interface that allows applications to access and manipulate system documents. System documents are documents that are used by the operating system or other system software. For example, the Windows registry is a system document.

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