Refer to the exhibit. What are three traffic and interconnection requirements for the devices in the exhibit? (Choose three.)

Question

Exhibit

Options

• AThe EtherNet/IP drive connections are in a high-voltage area and need protection from
• BEtherNet/IP devices such as the controller, drive, VoIP phone, and IP camera should be in the
• CCIP traffic has the highest bandwidth requirement so it needs the highest QoS setting.
• DEtherNet/IP drive traffic has high sensitivity to random drops, latency, and jitter.
• EReal-time motion control and VoIP traffic can share the same VLAN with the proper QoS setting.
• FIEEE1588 and PTP are important for ensuring real-time synchronization.

• A
  73% (24)
• B
  15% (5)
• C
  9% (3)
• E
  3% (1)

Explanation

Options A, D, and F correctly capture real-world requirements for industrial EtherNet/IP deployments. Drive enclosures in high-voltage areas generate significant electromagnetic interference (EMI), so EtherNet/IP cabling and hardware must be shielded or protected accordingly (A). Drive control traffic is time-critical - random packet drops, latency, and jitter can cause loss of motor control or trigger safety faults (D). IEEE 1588 / Precision Time Protocol (PTP) provides sub-microsecond clock synchronization across network devices, which is essential for coordinated motion control and time-stamped events (F).

Why the distractors are wrong:

• B is wrong because industrial EtherNet/IP devices (controllers, drives) should be segregated from IT devices like VoIP phones and cameras - mixing them risks security exposure and performance interference.
• C is wrong because CIP traffic is not high-bandwidth; it is small and periodic. Its QoS priority is driven by time-sensitivity, not bandwidth demand.
• E is wrong because real-time motion control and VoIP must be in separate VLANs - they have incompatible security profiles and mixing them is poor network design regardless of QoS.

Memory tip: Think "ADF = Always Defend the Factory" - Area protection from high voltage, Drive traffic is jitter-sensitive, and Frequency/time sync via 1588 keeps everything coordinated.

No community discussion yet for this question.