According to the domain name system (DNS), which of the following is a subdomain of the domain example. com? about. example. com

example. com/about. html

example. com. about

example. org

Dean wants a quick way to look up staff members by their staff id. in cell q3, nest the existing vlookup function in an iferror function. if the vlookup function returns an error result, the text “invalid staff id” should be displayed by the formula. (hint: you can test that this formula is working by changing the value in cell q2 to 0, but remember to set the value of cell q2 back to 1036 when the testing is complete.)

How can smart devices benefit businesses, organizations, and social communities in the global marketplace?

In simple terms, how would you define a protocol?