Certificate

Hi,
The stay back time is equal to the course duration.

Hi Nimmakalaya,
This depends from university to university and also if your distance B.Tech is recognised by UGC or not. Please email universities in USA admits enquiring.They will get back to you. You can also share a soft copy of your degree with them.

I would rather suggest you to do SAP FICO for better future. Main reason is that most of the big companies uses SAP as an accounting software.

Yes, a commerce student can surely do this course.

Just Java certification without any Computer Science or IT degree will not provide you sufficient skills to get a job. You may please visit your strategy to join IT industry.

Quality Assurance is process oriented and focuses on defect prevention, while quality control is product oriented and focuses on defect identification.
Quality Assurance ensures that the approaches, techniques, methods and processes are designed for the projects are implemented correctly.
Quality assurance activities monitor and verify that the processes used to manage and create the deliverables have been followed and are operative.

You can go through the web development, Android app development, C language or C+ certification courses. It also depends on the computer language you studied in class 12th. If you are looking for the basics then C language will be best one.