The ID you present on test day
You’re responsible for:
What to expect on the test
You have several sources of information to familiarize yourself with what to expect on the different sections of the test.
https://www.ets.org/gre/test-takers/general-test/test-day.html
Familiarize yourself with what to expect on the day of your GRE General Test when you test a test center. View important information regarding what to bring to the test center; procedures before, during and after your test; and what to do if your test session is canceled or delayed.
Before test day, review the GRE® Information Bulletin for information about test day policies, including check-in procedures, canceling your scores and dismissal from a test.
A note about test security
Test security is very important to ETS. There are policies and procedures that test centers must follow to ensure the test is administered fairly and securely. If you fail to follow the instructions of the test center staff, you won't be permitted to test, and your test fee won't be refunded. Any violation of security procedures during the test or during a break may result in dismissal from the test center and/or cancellation of your test scores. You can review all the security policies and procedures in the Bulletin.
https://www.ets.org/gre/test-takers/general-test/test-day/test-center-test-day.html
Knowing what to expect when you take your test at home will help ensure you're ready to do your best on test day. Review this information to learn about the at home testing procedures for the GRE General Test, including the materials you'll need and how to prepare the room where you'll test.
Review the GRE® Information Bulletin for more information, including canceling your scores and dismissal from a test.
A note about test security
Test security is very important to ETS. There are policies and procedures that proctors must follow to ensure the test is administered fairly and securely. If you fail to follow the instructions of the proctor, you won't be permitted to test, and your test fee won't be refunded. Any violation of security procedures during the test or during a break may result in dismissal from the test and/or cancellation of your test scores. You can review all the security policies and procedures in the Bulletin.
https://www.ets.org/gre/test-takers/general-test/test-day/at-home-test-day.html