MPLS Uses LDP to Provide Different Label Distribution Modes

question 484

Multiple Choice

MPLS uses LDP to provide different label distribution modes. Which of the following statements regarding LDP label distribution control modes are false? (Choose all that apply.)

• A) LDP label distribution can be controlled in ordered mode.
• B) In ordered mode, when an LSR is the origin of a route, it can send label mapping messages to the upstream router initiatively and does not need to wait for label mapping messages from the next hop LSR.
• C) LDP label distribution cannot be controlled in independent mode.
• D) In independent mode, an LSR cannot send label mapping messages to the upstream router before it receives label mapping messages from the next hop LSR.

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