Pinterest only follows the boards that exist when you first choose to follow that person

What cable type is known for transmitting a signal through light rather than electrical signals?

a. Fiber-optic b. Cable c. Ethernet STP d. Ethernet UTP

MC To facilitate the retrieval of specific records from a file, at least one field in each record is chosen as a__________ .

a) record key. b) file key. c) field key. d) None of the above.