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H3C GB0-391 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: WAN Optimization Technologies | - Application acceleration techniques - Traffic optimization and QoS principles |
| Topic 2: Secure WAN Construction | - WAN security policies and access control - VPN technologies and encryption basics |
| Topic 3: WAN Fundamentals and Architecture | - Enterprise WAN design principles - WAN technologies overview |
| Topic 4: Enterprise WAN Deployment and Management | - WAN deployment models - Monitoring and troubleshooting WAN networks |
H3C Constructing Secure optimized WANs v2.0 Sample Questions:
In the EPCN network as shown in the figure , when sending data from CLT to users 1 , 2 , 3 , which of the following statements is correct?
- A. CNU1 will receive packages 1 , 2 , and 3 and send them all to the end user 1
- B. CNU1 will receive packets 1 , 2 , and 3 , but it will only send packet 1 to end user 1 , and discard packets 2 and 3
- C. CNU1 will only receive package 1
- D. terminating end user 1 will only receive the packet 1
- E. terminating end user 1 receives packet 1 , 2 , 3 , but it accepts only the packet 1 , the packet is discarded 2 and packages 3
Correct Answer: B,D 🗳️
The ______ in the data packet can be used to distinguish data streams for access control.
- A. advantage with the source / destination of the IP addresses
- B. Lee with the source / destination port numbers
- C. Lee with source / object MAC address
- D. Lee with URL information
Correct Answer: A,B,C,D 🗳️
A secure network must meet the conditions of ______ .
- A. There is an adequate security system when connecting to the internet
- B. Have sufficient encryption and anti-counterfeiting means when transmitting data on the internet
- C. determined users within the network access security and legal security
- D. entire network has a sound management system
Correct Answer: A,B,C,D 🗳️
Which of the following descriptions about AH ( Authentication Head ) and ESP ( Encapsulating Security Payload ) are correct?
- A. two who can provide data origin authentication and optional anti-replay service
- B. AH cannot provide data integrity protection
- C. two who can provide confidentiality protection
- D. two can be used simultaneously
Correct Answer: A,B,D 🗳️
by the security gateway device displa ipsec sa command displays the following order information, the information is understood by ______ .
Interface: Serial0/2/1 path MTU: 1500
---------------- -------------
IPsec polic name: "1"
sequence number: 1
mode: isakmp
-----------------------------
connection id: 5
encapsulation mode: transport
perfect forward secrec: None
tunnel:
local address: 10.2.1.1
remote address: 10.2.1.2
Flow:
sour addr: 10.1.1.0/255.255.255.0 port: 0 protocol: IP
dest addr: 10.3.1.0/255.255.255.0 port: 0 protocol: IP
[inbound ESP SAs]
spi: 909448761 ( 0x36351639 )
proposal: ESP-ENCRPT-DES ESP-AUTH-MD5
sa remaining ke duration ( btes/sec ) : 1887435204/83
spi: 909448761 ( 0x36351639 )
proposal: ESP-ENCRPT-DES ESP-AUTH-MD5
sa remaining ke duration ( btes/sec ) : 1887435204/83
max received sequence-number: 19
udp encapsulation used for nat traversal: N
[outbound ESP SAs]
spi: 1583842120 ( 0x5e678348 )
proposal: ESP-ENCRPT-DES ESP-AUTH-MD5
sa remaining ke duration ( btes/sec ) : 1887435204/83
max sent sequence-number: 20
udp encapsulation used for nat traversal: N
- A. This security policy work in tunnel mode
- B. This security policy works in transmission mode
- C. This security policy requires the use of IKE dynamic negotiation key, SPI , security protocol and algorithm and other parameters
- D. This security policy requires manual configuration of parameters such as keys, SPI , security protocols and algorithms
Correct Answer: A,C 🗳️
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