GRE Exam Pattern

 So the GRE general test can be taken in 2 patterns:

  1.Computer-based

  2.Paper-based

Computer-based exam structure:

Test Design Features

The GRE revised General Test design features advanced technology that allows you to freely move forward and backward throughout an entire section. Specific features include:

• Preview and review capabilities within a section
• "Mark" and "Review" features to tag questions, so you can skip them and return later if you have time remaining in the section
• The ability to change/edit answers within a section
• An on-screen calculator for the Quantitative Reasoning section   

Paper-based exam structure:

Test Design Features

• When taking a Verbal Reasoning or Quantitative Reasoning section, you are free, within that section, to skip questions and come back to them later or change the answer to a question.
• There are paper-based equivalents for most of the new question types, including text completions and numeric entry.
• Answers are entered into the test book, rather than a separate answer sheet.
• You will be provided an ETS calculator to use during the Quantitative Reasoning section; you may not use your own calculator.

I have copied the above information from the GRE site :http://www.ets.org/gre/revised_general/about/content/

So, for any other queries feel free to comment me or visit the official site for more information.

:)