In Industrial Automation and Control Systems, which type of traffic gets the highest priority via quality of service configuration?

The correct answer is C. industrial device traffic. In Industrial Automation and Control Systems (IACS), industrial device traffic receives the highest QoS priority because control signals between PLCs, sensors, actuators, and SCADA systems are time-critical - even milliseconds of delay can cause equipment failure, safety…

Industrial Network Architectures

Question

Options

Avoice traffic
Bweb and email traffic
Cindustrial device traffic
Dcollaboration traffic

How the community answered

(52 responses)

A
12% (6)
B
6% (3)
C
79% (41)
D
4% (2)

Explanation

In Industrial Automation and Control Systems (IACS), industrial device traffic receives the highest QoS priority because control signals between PLCs, sensors, actuators, and SCADA systems are time-critical - even milliseconds of delay can cause equipment failure, safety incidents, or production shutdowns. Voice traffic (A) is latency-sensitive but non-critical in industrial contexts; it typically gets high priority in enterprise networks, not OT environments. Web and email (B) and collaboration traffic (D) are best-effort or medium-priority traffic types that can tolerate delay without physical consequences.

Memory tip: Think "what breaks if delayed?" - in a factory, a missed control signal to a valve or motor is far more dangerous than a dropped video call, so industrial device traffic always wins the priority battle.

Topics

#Quality of Service (QoS)#Industrial Device Traffic#Traffic Prioritization#Industrial Networks

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