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多选题
Which statements about MPLS Label Distribution Protocol（LDP） are valid？（）
A

LDP hello packets are sent to UDP port 646

B

LDP hello packets are sent to TCP port 711

C

LDP sessions are TCP sessions to port 646

D

LDP sessions are TCP sessions to port 711

E

LDP establishes a peer relationship with another router that must be directly attached

F

LDP can establishes a peer relationship with another router that is not directly attached

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更多 “多选题Which statements about MPLS Label Distribution Protocol（LDP） are valid？（）ALDP hello packets are sent to UDP port 646BLDP hello packets are sent to TCP port 711CLDP sessions are TCP sessions to port 646DLDP sessions are TCP sessions to port 711ELDP establishes a peer relationship with another router that must be directly attachedFLDP can establishes a peer relationship with another router that is not directly attached” 相关考题
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考题 多选题Which two statements are true about the rendezvo us point (RP) in a multicast network?（）AThe multicast sources must register with the RP to form the multicast distribution tree.BAn RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).CThe mu lticast receivers must register with the RP to form the multicast distribution tree.DAn RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).EAn RP is required only in networks running Protocol Independent Mu lticast sparse - dense mode (PIM - SDM).FTo form the multicast distribution tree, the multicast sources register with and the receivers join the RP.
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考题 单选题Multi Protocol Label Switching （MPLS） is a data-carrying mechanism that belongs to the family of packet-switched networks. For an MPLS label， if the stack bit is set to1， which option is true？（）A The stack bit will only be used when LDP is the label distribution protocolB The label is the last entry in the label stack.C The stack bit is for Cisco implementations exclusively and will only be used when TDP is the label distribution protocol.D The stack bit is reserved for future use.
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