Which is a digital communications use in research and development?

• A. Internet research
• B. CAD
• C. Electronic communication of drawings
• D. Video conferencing

Answer: (A)

In research and development, digital communications means using online networks to access and share information. The Internet enables gathering literature, datasheets, standards, patents, supplier data, and collaborating with colleagues and external partners anywhere, which is exactly what internet research does. It directly uses digital channels to find and exchange information that supports design, testing, and decision-making.

The other options are not as fitting for this use. CAD is a design tool for creating models and drawings, not primarily a way to communicate information. Electronic communication of drawings involves sending existing drawings digitally, which is a transmission task rather than a broad information-gathering activity. Video conferencing is a digital communication method too, but it centers on real-time collaboration rather than the information search and retrieval aspect highlighted here.