Just saw this.
HamStudy.org: Find a test session
So we can now take the test online? If so is it the same as in person?
Is there a time limit? How many questions? Thanks'
I was a 5937 In The Marine Corps - Aviation Radio Repairman
The test sessions detailed in your posted link are actual exams for your ham license. They're NOT practice tests (which typically are no charge or a single price for as many times that you want to take them, perhaps during a certain time period) but tests that if you pass give you an actual FCC ham license. Typically there's no time limit, but often they request that you take several practice tests shortly prior to signing up for a session and pass those practice exams with a 80% or better average. This isn't really that hard to do if you study and practice.
The tests are exactly the same tests you'd be given during an in person exam, it's just done over the internet using one of the typical conferencing apps like Zoom. There is a bit more to it since you won't have the examiners in the same room with you while taking the test, but many find it's less stressful. They'll require you to be isolated in a room and not be disturbed during the exam session. It may sound funny, but often people select to take the exam in their bathroom since it's small, uncluttered, and has a door that can be locked. You'll be expected to use your camera (on your laptop and/or phone) to show your testing area is "sterile" (as in nothing that can be used to cheat on your exam) and passes the requirements for that testing organization. There will be some forms for you to fill out and digitally sign and the test can be started.
You'll then need to keep your camera active and pointed at yourself during the test (unless otherwise directed by the examiner) and share your computer screen so they can monitor both you and your test process. Be aware that multiple people will be watching you take the test both using the video and on your screen. When finished, your test will be graded and if you pass, you'll be presented with a certificate of successful passing and your results will be sent to the testing organization for processing and then sent to the FCC for their processing. Your license will be placed in the FCC database and you will be able to legally operate. You may be offered the opportunity to take the next test if your team allows that.
Upgrades are basically the same as for a new ham with the exception that since you already are a licensed ham and have an FCC assigned call sign, if you pass your upgrade, you can legally use your new privileges once you've successfully passed your exam and got your certificate of successful passing. You will need to use the appropriate call sign modifier (/AG for example) until the FCC has posted your upgrade.