It is not necessary, since You are using separate software for typing of answers (Tangix Virtual Tester). This applies to all SolidWorks certificates. Just make sure that You have correct test code and that it doesn't expire.
Note that Tangix Virtual Tester captures Your actions, opened software etc. during the test.
No there is no need, for Your safety, just make sure that software solutions like TeamViewer are not active during testing although it won't have any impact on certificate issuing process which should be fully automated.
It is not necessary, since You are using separate software for typing of answers (Tangix Virtual Tester). This applies to all SolidWorks certificates. Just make sure that You have correct test code and that it doesn't expire.
Note that Tangix Virtual Tester captures Your actions, opened software etc. during the test.
Good luck !