How often does the AdWords system run an auction to decide which ads to show on the Google search page?
A) Once every 24 hours for a given keyword
B) Every time a user enters a search query
C) Once every two hours for a given keyword
D) Every time a new advertiser adds a keyword to an account.
Answer: B
A) Once every 24 hours for a given keyword
B) Every time a user enters a search query
C) Once every two hours for a given keyword
D) Every time a new advertiser adds a keyword to an account.
Answer: B