"DCA" typically stands for "Diploma in Computer Applications." It is a popular computer course that provides foundational knowledge and skills in computer applications and software. The DCA course is designed for individuals who want to learn basic computer concepts and gain proficiency in using popular software applications.

The duration of the DCA course can vary depending on the institute offering it, but it typically lasts for several months, and it may be available in both full-time and part-time formats. Keep in mind that the specific details of the DCA course may have changed or evolved after my last update in September 2021. To get accurate and up-to-date information, I recommend checking with local educational institutions or training centers that offer the DCA course in your area