Which command enables STP on an MX Series device?
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A. B. C. D.D
The correct answer to the question is B. "set protocols rstp mode stp" enables Spanning Tree Protocol (STP) on an MX Series device.
STP is a protocol used to prevent loops in a Layer 2 network by creating a tree topology. This ensures that only one active path exists between any two network devices. When a new connection is added or an existing connection fails, STP recalculates the topology to ensure there are no loops.
The Juniper Networks MX Series is a line of routers designed for high-performance, high-density networks. The MX Series supports various protocols, including STP.
To enable STP on an MX Series device, you can use the "set protocols rstp" command. This command configures Rapid Spanning Tree Protocol (RSTP) on the device. RSTP is an updated version of STP that provides faster convergence times and improved performance.
The "mode stp" option in the "set protocols rstp" command enables STP on the device. The other options provided in the answer choices are not correct.
Option A, "force-mode stp", is not a valid option. Option C, "version stp", and option D, "force-version stp", are not valid commands for enabling STP on an MX Series device.
In summary, to enable STP on an MX Series device, you can use the "set protocols rstp mode stp" command.