Positive Bid adjustments for devices can be controlled by modifiers of +900% whereas the Negative Bid adjustments for devices can be controlled by modifiers of -100%. If you use an -100% bid adjustment, then your ads won’t be displayed on that device. Bid adjustments(modifiers) for other targets can range from -90% to +900%.
This question is a part of the Microsoft Advertising Certified Professional exam. You can find all the answers with full explanation for this exam in our Microsoft Advertising Certified Professional Exam Answers page.