ISQI ISTQB Certified Tester-Foundation Level - Usability Testing - CTFL-UT Exam Practice Test

You're conducting a user survey and you have reached the third stage, selecting an appropriate questionnaire.
You have decided to use a standardized questionnaire as you want to benchmark against previous usability measurements.
Which of the following user questionnaires allow benchmarking against previous usability measurements?
i. SUS
ii. SUMI
iii. WAMMI

As an expert for usability, you're in charge of the usability part of the development of a business application for a large customer. You have worked as a usability expert with the development team for two years and are operating well together; the developers value your feedback and give their bests implementing your suggestions. The product is in an early stage, so there's only a rudimentary prototype available.
Given this information, what is the best approach to verify the usability at the current stage?

Which of these basic approaches to a software development project follows all key elements of human- centered evaluation?

You're asked to evaluate the direct interaction between ordinary users and the software product. Which kinds of evaluations would be suited for that?