Which of the following types of interfaces requires a terminator?

SAS (Serial Attached SCSI) uses point-to-point connections, not a shared bus, and therefore does not require terminators.

ATA (Advanced Technology Attachment), also known as IDE, uses a master/slave configuration on a parallel cable and does not use terminators in the same way SCSI does.

SATA (Serial Advanced Technology Attachment) uses point-to-point connections, similar to SAS, and does not require terminators for its operation.

SCSI (Small Computer System Interface) uses a shared bus architecture where devices communicate by sending electrical signals. To maintain signal integrity and prevent data corruption caused by signal reflections at the end of the cable, terminators are essential at both the physical ends of the SCSI bus.