What do PPC and CPA stand for in digital advertising?

• A. PPC is price-per-click; CPA is cost per advertisement.
• B. PPC is pay-per-click; CPA is cost per acquisition; both measure paid advertising efficiency.
• C. PPC is post-purchase analysis; CPA is customer retention.
• D. PPC stands for pay-per-click; CPA stands for cost per acquisition; both measure content performance.

Answer: (B)

Understanding what PPC and CPA stand for helps you read paid ads metrics accurately. PPC means pay-per-click, a model where you pay each time someone clicks your ad. CPA stands for cost per acquisition, a metric that shows how much you spend to acquire a customer or complete a defined action. These two measures assess paid advertising efficiency from different angles: PPC focuses on the cost and value of clicks driving traffic, while CPA concentrates on the cost to achieve actual conversions. The definitions in the other options miss or misstate these terms—one confuses what you pay for, and others point to actions like post-purchase analysis or content performance rather than conversions.