NSE7_OTS-6.4 Web TestEngine Demo

Q4 Single choice

As an OT administrator, it is important to understand how industrial protocols work in an OT network.

Which communication method is used by the Modbus protocol?

A
It uses OSI Layer 2 and the primary device sends data based on request from secondary device.
B
It uses OSI Layer 2 and both the primary/secondary devices always send data during the communication.
C
It uses OSI Layer 2 and both the primary/secondary devices send data based on a matching token ring.
D
It uses OSI Layer 2 and the secondary device sends data based on request from primary device.

NSE7_OTS-6.4 Web TestEngine demo