H3C Constructing Secure optimized WANs v2.0 : GB0-391

GB0-391 real exams

Exam Code: GB0-391

Exam Name: Constructing Secure optimized WANs v2.0

Updated: Sep 05, 2025

Q & A: 468 Questions and Answers

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H3C Constructing Secure optimized WANs v2.0 Sample Questions:

1. In L2TP networking, false set LAC and LNS are case has been in the public network, and are correct Unicom, if Tunnel construction legislation fails, the possible causes are

A) Tunnel verification fails
B) The username and password set on the LAC side are incorrect
C) On the LAC side , the address of the LNS is incorrectly set
D) There is no L2TP group set on the LNS end that can receive the opposite end of the tunnel


2. The configuration commands on the MSR router are as follows:
acl number 2001
rule 0 permit source 192.168.2.0 0.0.0.255
acl number 2002
rule 0 permit source 192.168.3.0 0.0.0.255
acl number 2003
rule 0 permit source 192.168.0.0 0.0.0.255
#
traffic classifier 2 operator or
if-match acl 2001
if-match acl 2002
if-match acl 2003
#
traffic behavior 2
filter den
#
qos polic 2
classifier 2 behavior 2
#
interface GigabitEthernet0/1
port link-mode route
ip address 192.168.1.1 255.255.255.0
qos appl polic 2 outbound
Then when the source address are 192.168.2.2 , 192.168.3.2 , 192.168.0.2 the packets from the port G0 / 1 forwarding outwardly, the following statement is incorrect ______

A) Packets with the source address of 192.168.0.2 are forwarded normally
B) three message by the flow are blocked
C) Packets with source address 192.168.3.2 are forwarded normally
D) Forwarding of packets whose source address is 192.168.2.2 is blocked


3. In the PPPoE the PPP Session price segment, PPPoE Client and PPPoE server Ethernet data frames exchanged between an object MAC address may be ____ .

A) Group multicast MAC address
B) The MAC address of the PPPoE server
C) widely broadcast MAC address
D) The MAC address of the PPPoE client


4. When the label distribution method is ______ , the downstream device needs to wait for the label distribution application from the upstream device to distribute the label.

A) There order mode ( Odered )
B) DOD ( DOWNstream On Demand ) downstream on demand
C) Since the embodiment ( Liberal Retention MODE )
D) DU ( DOWNstream Unsolicited ) downstream autonomous
E) independent stand mode ( work of the Independent )


5. The configuration commands on the MSR router are as follows :
acl number 2000
rul e o permit source 192.168.0.0 0.0.0.255
acl number 2002
rule o permit source 192.168.2.0 0.0.0.255
#
traffic classifier 2 0perator and
if-match acl 2002
traffic classifier l operator and
if-match acl 2000
##
interface GigbitEthernet0/1
port link-mode route
duplex full
speed 10
ip address 192.168.1.1 255.255.255.0
qos reserved-bandwidth pct 90
qos appl polic test outbound
When the traffic rates of packets with source addresses of 192.168.0.2 , 192.168.2.2 , and 192.168.3.2 are 4Mbps , 4Mbps , 5Mbps , and no other background traffic is forwarded from port G0/l .
The incorrect statement under the team is ____ .

A) The forwarding rate of packets with the source address of 192.168.0.2 is about 2.7Mbps
B) The forwarding rate of packets with the source address of 192.168.2.2 is about 2.7Mbps
C) The forwarding rate of packets with the source address of 192.168.2.2 is about 3Mbps
D) The forwarding rate of packets with the source address of 192.168.0.2 is about 3Mbps
E) The forwarding rate of packets with the source address of 192.168.2.2 is about 4Mbps
F) The forwarding rate of packets with the source address of 192.168.0.2 is about 4Mbps


Solutions:

Question # 1
Answer: A,C,D
Question # 2
Answer: A,C,D
Question # 3
Answer: B,D
Question # 4
Answer: B
Question # 5
Answer: C,D,E,F

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