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H3C GB0-391 Exam Overview:
| Certification Vendor: | H3C |
|---|---|
| Exam Name: | Constructing Secure Optimized WANs v2.0 |
| Exam Number: | GB0-391 |
| Exam Price: | USD 135 (approx.) |
| Related Certifications: | GB0-381 H3C Large-Scale Network Routing Technology V2.0 GB0-371 Building H3C High-Performance Campus Network V2.0 |
| Passing Score: | 600/1000 (60%) |
| Exam Duration: | 60 minutes |
| Real Exam Qty: | 50 |
| Certificate Validity Period: | 3 years (part of H3CSE Routing & Switching certification validity) |
| Available Languages: | Chinese, English |
| Exam Format: | True/False, Single choice, Multiple choice, Gap fill (varies by item set) |
| Sample Questions: | H3C GB0-391 Sample Questions |
| Exam Way: | Proctored exam arranged by PROMETRIC, available at testing centres or via approved delivery partners. |
| Pre Condition: | Recommended to hold H3CNE certificate and fundamental networking knowledge; part of H3CSE Routing & Switching certification track (requires GB0-371 and GB0-381). |
| Official Syllabus URL: | https://www.h3c.com/en/Training_Certification/Technical_training___certification/Certification_Project/H3CSE/ |
H3C GB0-391 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Secure Optimized WAN Overview | - WAN architecture and requirements - Enterprise secure WAN fundamental concepts |
| Topic 2: BGP/MPLS VPN | - MPLS core concepts and label forwarding - BGP/MPLS VPN implementation and troubleshooting |
| Topic 3: Enhanced Network Security | - Threats and secure network best practices - Network security management methods |
| Topic 4: Secure VPN Technologies | - IPSec VPN architecture and security basics - SSL VPN principles and configuration basics |
| Topic 5: Quality of Service (QoS) | - Traffic policing, shaping and congestion techniques - Link efficiency and compression technologies |
| Topic 6: Broadband Access Technologies | - WAN access configuration methods - Broadband access principles (IPoE, EPON etc.) |
| Topic 7: Conventional VPN Technologies | - GRE VPN principles and configuration - L2TP VPN concepts and applications |
H3C Constructing Secure optimized WANs v2.0 Sample Questions:
Question 1
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 LNs receive the ICCN ( Incoming-Call-Connectea , call connected ) message sent by LAC
B. After the LNS receives the Hello control message sent by the LAC
C. LNS receives StopCCN ( scop-Control-Connection-Notiflcation ) sent by LAC ; after the message
D. the LNS received LAC transmit the CDN ( Call-Disconnect- Notif , call disconnection notification ) after the message
Question 2
In the MSR router configuration command is as follows:
acl number 2001
rule o permit source 19 2.168.2.0 0.0.0.255
acl number 2002
rule o permit source 192.168.3.0 0.0.0.255
acl number 2003
rule o permit source 192.168.0.0 0.0.0.255
#
traffic classifier 2 operator or
if-match acl 2001
if-match classifier 1
traffic classifier 1 operator and
if-match acl 2002
if-match acl 2003
#
traffic behavior 2
filter deny
#
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 0utbound
When the source address are 192.168.2.2.192.168.3.2.192.168.0.2 packets from the port G0 / 1 forwarding outwardly, the following statement is correct ____ .
A. Packets with source address 192.168.3.2 are forwarded normally
B. Packets with the source address of 192.168.0.2 are forwarded normally
C. Packets with the source address of 192.168.2.2 are forwarded normally
D. three message by the flow are blocked
Question 3
If each of the teams it corresponds to a type of packets, the transmission ratio of the amount of each queue is sequentially increased, both 1: 2: 3: ...: most large number of queues, assume that the application speed of the schedule port If it is 100Mbps , then when each queue corresponds to a message that is forwarded at a speed of 20Mbps after the port is congested.Of 7 broadband packet queue corresponds may be used about as ______
A. 5.14%
B. 5.26%
C. 5.88%
D. 4.61%
Question 4
Among the control messages defined by the MPCP protocol, the one sent by the ONU is _____ .( Choose one or more )
A. Register
B. Register_Req
C. Register Ack
D. The GATE
E. Report
Question 5
IPSec polic is configured between the two routers , after the policy is issued to the corresponding interface, the ping command is used to check the interoperability of the protected data flow, and it is found that the data passes 100% .Use displa ike sa and displa ipsec sa to order, it shows that IPSec SA is not established.
The reason for the failure of IPSec configuration is ____ .( Choose one or more )
A. ACL configuration is incorrect
B. the IKE the pre-shared-ke configuration mismatch
C. The remote-add ress address of IKE is not the interface address of the peer router
D. The transmission mode is used in the IPSec proposal , and the protected data flow is data from network segment to network segment
Solutions:
| Question 1 Answer: B | Question 2 Answer: A,B | Question 3 Answer: A | Question 4 Answer: B,C,E | Question 5 Answer: A |
By Everley
