Hi Yuhong,
The InterSystems HL7 Interface Specialist certification exam is not an open book exam. It consists of a series of 68 multiple choice/multiple response questions. You can read more about the exam here.
If you already have the InterSystems HL7 Interface Specialist certification, and that certification is within 6 months of its expiration date, then you have the option of extending your certification by 5 more years by taking the performance-based recertification project. In this project, you are given a vm with an IRIS instance and your task is to create an HL7 production according to the provided specification. You can read more about the recertification project here.
Please feel free to ask any more questions here or you can email your questions to certification@intersystems.com
Dynamic SQL offers flexibility, as queries can be constructed and executed at runtime, making it ideal for scenarios with unpredictable or highly variable query needs. Conversely, Embedded SQL emphasizes stability and efficiency by integrating SQL code directly into application logic, offering optimized response times for predefined query patterns.
Just a quick note about Embedded vs Dynamic: in recent versions of IRIS, both types are compiled at runtime and both make use of Universal Query Cache, the differences in efficiency and performance should be minor, if any.
It looks like the exam browser tried to access a Windows wifi api and was prevented from doing so. The reason could be that you didn't start the exam browser with admin privileges or you are using a work computer and your user account doesn't have sufficient privileges to access this wifi api.
If using a work computer, then one solution is to contact your IT department and ask to elevate your account privileges so that exam browser can start correctly, or to use your own personal device to take the exam.
Feel free to reach out to our exam vendor, for support with starting the Safe Exam Browser.