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H3C GB0-391 Exam Syllabus Topics:

H3C Constructing Secure optimized WANs v2.0 Sample Questions:

Question 1

In PPPoE applications, the Ethernet MAC address of the access end is determined in the _____ phase of PPPoE .( Please fill in English )

A. Discovery

Question 2

As the client, the PC uses the client LAC mode to establish an L2TP tunnel through the iNode and the LNS , and prompts that the acquisition of the lP is overtime.The possible cause of this problem is ____ .( Choose one or more )

A. Incorrect username and password on iNode
B. Tunnel interface verification fails
C. IP address pool configuration error
D. LNS to LAC authentication fails

Question 3

In the BGP MPLS VPN networking, the correct statement about the relationship between labels is _______ .

A. Between PE and CE devices, private network packets have only one MPLS label, which is a private network label
B. Between public network devices, private network packets usually have two layers of MPLS labels, of which the outer layer is the public network label
C. MPLS After enabling the penultimate hop, the penultimate and final message hop between public network equipment is only one layer MPLS label, private label is
D. Private network labels cannot be identified on all PE and P devices

Question 4

The information displayed on the MSR router is as follows:
Sstem Defined Behavior Information:
Behavior: ef
Expedited Forwarding:
Bandwidth 20 (% ) Cbs-ratio 25
Behavior: af
Assured Forwarding:
Bandwidth 20 (%)
Discard Method: Tail
Behavior: be
-none-
Then the following statement is incorrect is _____

A. which is defined in the EF queue and AF queues, bandwidth is reserved bandwidth occupied respectively 20%
B. explicit information indicating the behavior of a user-defined
C. use can change the percentage of the bandwidth occupied by the queue user behavior
D. significant information is shown the behavior of the system defined

Question 5

When SIP-UA calls the called party through the proxy server, ____ .

A. In this environment, the called UA response message is sent instead of the main junction proxy called UA
B. to the not right
C. Lord called UA All messages are forwarded through a proxy server
D. In addition to the external location request message, the calling UA other messages need not be forwarded through a proxy server

Solutions: