Which of these are true of tests for online courses?

Tests for online courses are typically administered online, which aligns with the nature of the course itself. This means that students can complete their assessments from different locations, using devices such as computers or tablets, without the need to attend a physical testing center. This flexibility is a core feature of online education, allowing for greater accessibility and convenience for students.

The other options do not reflect the common characteristics of online assessments. For example, in-person administration would contradict the online format of these courses. Similarly, limiting tests to only multiple-choice questions does not represent the diversity of assessment formats used in online education, which can include essay questions, short answers, and project submissions. Lastly, while some tests may be "open book," this is not universally true for all online assessments, as many online courses also utilize closed book formats to evaluate knowledge effectively.