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最新的 Huawei Specialist H12-731-ENU 免費考試真題:

1. Which of the following are the IKE encryption algorithms supported by the USG firewall?

A) des-cbc
B) MD5
C) aes-cbc 128 | 192 | 256
D) RSA

2. According to the "GB/T 22240-2008 Information Security Technology Information System Security Level Protection Grading Guide", information systems are divided into five levels according to different levels, of which the protection capabilities of the five levels include:

A) Able to protect the system from malicious attacks from external small organizations, threat sources with few resources, general natural disasters, and other threats of considerable damage to important resources, and to discover important security Vulnerabilities and security incidents, after the system is compromised, can restore some functions for a period of time.
B) It can protect the system from malicious attacks from external organized groups, threat sources with relatively rich resources, serious natural disasters, and other major threats caused by relatively harmful threats under a unified security strategy. Resource damage can find security loopholes and security incidents, and after the system is damaged, most functions can be restored.
C) undefined
D) Resources that can protect the system from malicious attacks, severe natural disasters, and other threats of considerable severity from national-level, hostile organizations, and resource-rich threat sources under a unified security strategy Damage, can find security breaches and security incidents, after the system is damaged, can quickly restore all functions.

3. What are the mechanisms for implementing intrusion prevention?

A) Protocol identification and protocol resolution
B) Blacklist match
C) Response handling
D) feature matching

4. As shown in the figure below, a company uses the USG6600 firewall as the egress. The company has two egresses. Carrier A and carrier B share the egress load. When an engineer deploys the firewall, two egresses are added to the untrust zone at the same time. The user has joined the trust zone and made source NAT mapping. After the deployment, it is found that some users have normal access to the Internet, while some users have very slow access to the Internet, and even sometimes cannot access the Internet.
[USG] display firewall session table verbose
http VPN: public --> public
Zone: trust --> untrust TTL: 00:00:10 Left: 00:00:08
Interface: GigabitEthernet0/0/0 Nexthop: 41.134.5.49 MAC: F0-DE-F1-69-26-91
<--packets: 9 bytes: 364 -->packets: 9 bytes: 364
10.16.1.20:5246 [41.134.5.52:5246] --> 16.8.3.8:80
http VPN: public --> public
Zone: trust --> untrust TTL: 00:10:00 Left: 00:09:59
Interface: GigabitEthernet0/0/1 Nexthop: 41.160.30.65 MAC: 00-21-97-cf-22-38
<--packets: 4 bytes: 238 -->packets: 14 bytes: 1640
10.16.1.122:3745 [41.134.5.52:3745] --> 2.2.2.2:80
[USG] display ip routing-table
20:56:07 2012/09/30
Route Flags: R - relay, D - download to fib
Routing Tables: Public
Destinations: 5 Routes: 5
Destination/Mask Proto Pre Cost Flags NextHop
0.0.0.0/0
Static 60
0
RD 41.134.5.49
0.0.0.0/0
Static
60
0
RD 41.160.30.65
10.16.1.1/24
Direct
0
0
D 127.0.0.1
127.0.0.0/8
Direct
0
0D 127.0.0.1
127.0.0.1/32
Direct
0
0
D 127.0.0.1
Based on the above information, please determine which of the following descriptions is correct?

A) The issue is related to carrier network stability.
B) The problem is caused by an equal-cost route.
C) The problem is caused by the user's PC.
D) It can be inferred that the source NAT configuration is correct.

5. SYN Flood attacks can be prevented through TCP reverse source detection and TCP proxy technology. Comparing the two defense technologies, the correct statement is:

A) The use of TCP proxy mode can be used in scenarios where the round-trip paths are inconsistent.
B) The defense technology of reverse source detection mechanism and TCP proxy mode must enable state detection mechanism.
C) Only when the rate of SYN packets reaches the alarm value alert-rate-number, the device can check the SYN packets by the TCP proxy.
D) When the SYN packet rate reaches the alarm value alert-rate-number, the device can perform source authentication check on SYN packets.

問題與答案：