Typically, a DO/S system's scheduling function has three parts: a ____, a priority function, and an arbitration rule.

________ refers to the relaying of a DNS request from one server to another one when the first server is unable to process the request

a. Forwarding b. Querying c. Resolving d. Relaying

One way to ensure that correct data is entered into a cell or range is to use the Excel data _____ feature.

A. validation B. concatenation C. security D. index