Which of the following MOST likely causes problems with SCSI communication?

Low communication latency is generally a desirable characteristic for performance, not a cause of problems.

Exceeding maximum drive capacity is an issue related to storage limits, not typically a direct cause of problems with the underlying SCSI communication protocol itself.

SCSI (Small Computer System Interface) buses rely on proper termination at both ends of the chain to prevent signal reflection. Without correct termination, electrical signals on the bus can bounce back, causing data corruption, intermittent communication, or complete failure of SCSI devices.

While there is a limit to the number of devices on a SCSI bus, exceeding this limit would be a specific instance of improper configuration, but "improper termination" is a more fundamental and common cause of communication failure for a properly populated bus.