False. "100 milliseconds" typically refers to the time taken for an ad exchange to process and serve an ad after receiving a bid request from a publisher, not the time it takes for a publisher to serve an ad to a single consumer.
How to explain
This duration is a crucial aspect of real-time bidding (RTB) in digital advertising.
Within this brief window, various computations occur, including evaluating bids from multiple advertisers and selecting the winning ad to display.
Once the ad exchange determines the winning bid, the chosen ad is then delivered to the webpage for display to the user.