A ____ is a placeholder used in a search when the search should start or end with a specific character or match a particular pattern.

A(n) ________ reference is one that it is in the same relative position to the results cell

A) absolute B) virtual C) circular D) relative

Which of the following is a DNS record that is no longer valid either because the resource is offline for an extended period or permanently or because the resource's name or address has changed?

A. invalid resource record B. stale resource record C. used resource record D. offline resource record