Free Access H3C.GB0-391.v2022-05-05.q128 Practice Test (Page 11)

Question 46

Which of the following commands can check whether there is an LSP of a certain forwarding pricing class ______ .

A.displa mpls ldp session

B.displa mpls ldp peer

C.displa mpls ldp lsp

D.displa mpl s ldp

Question 47

The ZLB ( Zero-Length Bod ) message is a control message with only an L2TP header, and its function is to serve as an explicit response to ensure reliable delivery of the control message.
In the following four cases, LNS does not send ZLB message to LAC as a response: ____ .

A.After the LNS receives the Hello control message sent by the LAC

B.After LNs receive the ICCN ( Incoming-Call-Connectea , call connected ) message sent by LAC

C.the LNS received LAC transmit the CDN ( Call-Disconnect- Notif , call disconnection notification ) after the message

D.LNS receives StopCCN ( scop-Control-Connection-Notiflcation ) sent by LAC ; after the message

Question 48

The cable used in the Ethernet 1000BASE-LX standard is _______ The maximum transmission distance is ________ .

A.multi- mode fiber, 550m

B.2 pairs of STP twisted pair, 25m

C.4 pairs of Category 3 UTP twisted pair, 100m

D.4 pairs of Category 5 UTP twisted pair, 100m

E.single -mode optical fiber, 5000m

F.2 pairs of Category 5 UTP twisted pair, 100m

Question 49

In the BGP MPLS VPN networking, the following description about the private network label and the public network label is correct _______ .

A.The public network label is dynamically allocated, while the private network label is statically allocated

B.The format of the public network label is different from that of the private network label

C.well different label distribution protocol network and the private network tag label, the label is typically a public network LDP allocation protocol, and the label by the private network MP-BGP distribution protocol

D.The value of the public network label and the private network label carried in the message must be different

Question 50

Which of the following statements about IPSec and IKE is correct is ____ .( Choose one or more )

A.IPSec can only establish a security association through cooperation with IKE

B.IKE only with IPSec in conjunction

C.IKE is only responsible for providing security keys for IPSec establishment and does not participate in IPSec SA negotiation

D.After IPSec SA is established, data forwarding has nothing to do with IKE

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Question 46

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Question 48

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