An advertiser notices that a Display campaign is receiving a large number of conversions at certain times and days of the week. Which feature would help this advertiser maximize the number of conversions received at the campaign’s current budget?
A) Bid Optimizer
B) Ad rotation
C) Ad scheduling
D) Frequency capping
Ad Scheduling (also known as “day parting”) lets you tell Google exactly when you want your ads to run, and more importantly, when you do not want them to run. In addition, more advanced users can automatically modify their bids based on time-of-day and day-of-week cycles in campaign performance.
Ad Scheduling can help you with improving ROI for your display campaigns by ensuring that your ads show at times where it performs the best. For example, if you notice that you are getting the most conversions from Monday to Friday and nothing on Saturday and Sunday, you can schedule your ads to appear only during those times so that you are maximizing your ad’s performance with your given budget.
Read more here: https://support.google.com/partners/answer/2769671?hl=en