H3C GB0-391 Q&A - in .pdf

  • Exam Code: GB0-391
  • Exam Name: Constructing Secure optimized WANs v2.0
  • Updated: Sep 08, 2026
  • Q & A: 468 Questions and Answers
  • Printable H3C GB0-391 PDF Format. It is an electronic file format regardless of the operating system platform.
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H3C GB0-391 Q&A - Testing Engine

  • Exam Code: GB0-391
  • Exam Name: Constructing Secure optimized WANs v2.0
  • Updated: Sep 08, 2026
  • Q & A: 468 Questions and Answers
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H3C GB0-391 Exam Syllabus Topics:

SectionObjectives
Conventional VPN Technologies- GRE VPN principles and configuration
- L2TP VPN concepts and applications
BGP/MPLS VPN- MPLS core concepts and label forwarding
- BGP/MPLS VPN implementation and troubleshooting
Secure Optimized WAN Overview- Enterprise secure WAN fundamental concepts
- WAN architecture and requirements
Broadband Access Technologies- Broadband access principles (IPoE, EPON etc.)
- WAN access configuration methods
Secure VPN Technologies- IPSec VPN architecture and security basics
- SSL VPN principles and configuration basics
Quality of Service (QoS)- Traffic policing, shaping and congestion techniques
- Link efficiency and compression technologies
Enhanced Network Security- Threats and secure network best practices
- Network security management methods

H3C Constructing Secure optimized WANs v2.0 Sample Questions:

Question 1

In BGP MPLS VPN of networking, a private network user packet has two MPLS label, on which two layers of MPLS label statement is correct _______ .

A. inner layer label is a private label, and the MP-BGP distribution protocol
B. the outer label may have the same value
C. inner layer label tag is a public network, the LDP distribution protocol
D. the outer label not be the same value


Question 2

As shown in the figure, the configurations of the two security gateways are:
RTA
[RTA] ike peer 123
[RTA-ike-peer-123] pre-shared-ke simp le 123
[RTA-ike-peer-123] remote-address 10.2.1.2
[RTA-ike-peer-123] local-address 10.2.1.1
[RTA-ike-peer-123]quit
[RTA] ipsec proposal 1
[RTA-ipsec-proposal-1] quit
[RTA]acl number 3000
[RTA-acl-adv-3000] rule 0 permit ip source 10.1.1.0 0.255.255.255
[RTA]ipsec polic 1 1 isakmp
[RTA-ipsec-polic-isakmp-1-1] securit acl 3000
[RTA-ipsec-polic-isakmp-1-1] ike-peer 123
[RTA-ipsec-polic-isakmp-1-1] proposal 1
[RTA-ipsec-polic-isakmp-1-1] quit
[RTA] interface Ethernet 0/1/0
[RTA-Serial0/2/1] ip address 10.2.1.1 255.255.255.0
[RTA] interface Serial 0/2/1
[RTA-Serial0/2/1] ip address 10.2.1.1 255.255.255.0
[RTA-Serial0/2/1]] ipsec polic 1
RTB:
[RTB] ike peer 123
[RTB-ike-peer-123] pre-shared-ke simple 123
[RTB-ike-peer-123] remote-address 10.2.1.1
[RTB-ike-peer-123] local-address 10.2.1.2
[RTB-ike-peer-123]quit
[RTB] ipsec proposal 1
[RTB-ipsec-proposal-1] quit
[RTB]acl number 3000
[RTB-acl-adv-3000] rule 0 permit ip source 10.3.1.0 0.255.255.255
[RTB]ipsec polic 1 1 isakmp
[RTB-ipsec-polic-isakmp-1-1] securit acl 3000
[RTB-ipsec-polic-isakmp-1-1] ike-peer 123
[RTB-ipsec-polic-isakmp-1-1] proposal 1
[RTB-ipsec-polic-isakmp-1-1] quit
[RTA] interface Ethernet 0/1/0
[RTA-Serial0/2/1] ip address 10.3.1.1 255.255.255.0
[RTB] interface Serial0/2/1
[RTB-Serial0/2/1] ip address 10.2.1.2 255.255.255.0
[RTB-Serial0/2/1] ipsec polic 1
This shows that ______ .

A. Only there from the RTA to RTB launch of SA negotiation can succeed
B. Only there from RTB to RTA launched the SA negotiation can succeed
C. either any party initiated SA negotiation can be successful
D. any any party initiated SA negotiation can not succeed


Question 3

IP header ToS field provides a ______ one IP Precedence priority.

A. 16
B. 32
C. 64
D. 8


Question 4

The following commands are configured on the S3610 switch:
qos map-table dot1p-lp
import 1 export 5
import 2 export 4
interface Ethernet1/0/8
port link-mode bridge
port link-tpe trunk
port trunk permit vlan 1 4
qos trust dot1p
interface Ethernet1/0/9
port link-mode bridge
port link-tpe trunk
port trunk permit vlan 1 4
qos gts an cir 65000 cbs 2000000
Then when the flow rate is 40Mbps the vlan id is 4 and the 802.1p priority to 1 of packets, and a flow rate of 40Mbps is vlan id is 4 and the 802.1p priority 2 packets simultaneously from the end of the port E1 / 0/8 enters , from the side port E1 / 0/9 forwarding when made, the right is ______ ( one or more )

A. 80Mbps packets are forwarded normally
B. 802.1p preferably precedence 1 packets at the end of the outlet E1 / 0/9 Forward all
C. portions partial misconfigured
D. 802.1p preferred precedence 2 packets at the end of the outlet E1 / 0/9 Forward all
E. Packet traffic shaping is 65kbps for forwarding
F. 802.1p preferably precedence 1 packets and 802.1p preferred precedence 2 packets at the end of the outlet E1 / 0/9 has a loss, the ratio of traffic forwarding 5: 4


Question 5

A secure network must meet the conditions of ______ .

A. determined users within the network access security and legal security
B. Have sufficient encryption and anti-counterfeiting means when transmitting data on the internet
C. There is an adequate security system when connecting to the internet
D. entire network has a sound management system


Solutions:

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

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