You may give your students a short quiz before they can access the rest of the class. You might use questions about accessing course materials and the syllabus. It is also important to consider using a variety of test questions and ways of assessing students in general.
Quality Matters has these standards to address.
It is important to make sure you add all relevant information in the quiz or assignment description. Some of it displays automatically if you add it, like total points. For example, if you have short answer questions, make sure to tell them they must write a specific amount or use "x" number of examples to support their answer.
There are a number of quiz options and they are described in the video below.