You have configured multiple IP-IP tunnels across your network to provide connectivity to remote sites.Which technique is used to help the IP endpoints in your network determine the optimal packet size to send across your tunnels?

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Referring to the exhibit, which two statements are true? (Choose two.)

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You have just configured a GRE tunnel, but you notice that the GRE tunnel is flapping.
Referring to the exhibit, which two would you take to solve this problem? (Choose two.)

You are establishing RSVP LSPs through your MPLS-enabled network. You are asked to ensure that the LSPs will support end-to-end class-of-service handling.
Which statement is correct in this scenario?

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Referring to the exhibit, how many milliseconds must pass before the interface ge-0/0/1.0 is considered down?