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HCNP-Security-CISN (Huawei Certified Network Professional - Constructing Infrastructure of Security Network) Questions 81–85 (page: 18)

Updated On: 10-Feb-2026

With IP address scanning attack prevention, not only can it be used to prevent the ICMP packet destination address detection, it can also prevent the use of TCP / UDP scanning probe target addresses.

  1. TRUE
  2. FALSE

Answer(s): A



The USG limited flow policy configuration is as follows:

[USG] car-class class1 type shared
[USG-shared-car-class-class1] car 1000
[USG-shared-car-class-class1] quit
[USG-traffic-policy-interzone-trust-untrust-outbound-shared
[USG-traffic-policy-interzone-trust-untrust-outbound-shared-1] policy 1
[USG-traffic-policy-interzone-trust-untrust-outbound-shared-1] policy car-class class1
[USG-traffic-policy-interzone-trust-untrust-outbound-shared-1] policy source 192.168.1.0.0.0.0.255 [USG-traffic-policy-interzone-trust-untrust-outbound-shared-1] policy destination 192.168.2.0 0.0.0.255
[USG-traffic-policy-interzone-trust-untrust-outbound-shared-1] action car

Based on this information, which of the following statements is correct?

  1. Class1 limits the definition of the overall car-class, and limits to 1000bps
  2. Policy1 traffic will match without limiting the direct release
  3. The 192.168.1.0/24 hosts tthat access the data flow will be limited
  4. Matching Policy1 traffic will be flow controlled for each source IP

Answer(s): C



A network is as follows:
LAN---------------G0/0/0 USG G0/0/1 Server.
After administrators analyze a possible attack on the LAN networking G0/0/0 connection and want to enable ARP Flood attack prevention, restricting ARP traffic to 100 packs / min. What should be configured to enable this?

  1. firewall defend arp-flood enable
    firewall defend arp-flood interface GigabitEthernet 0/0/0 max-rate 100
  2. firewall defend arp-flood enable
    firewall defend arp-flood interface GigabitEthernet 0/0/0 max-rate 6000
  3. firewall defend arp-flood enable
    firewall defend arp-flood interface GigabitEthernet 0/0/1 max-rate 100
  4. firewall defend arp-flood enable
    firewall defend arp-flood interface GigabitEthernet 0/0/1 max-rate 6000

Answer(s): B



As shown below, the address pool for domain abc is the L2TP VPN user's address pool.

Based on the information, which of the following statements is wrong?

  1. L2TP users can authenticate the domain account.
  2. If the value of Used-addr-number field is less than the value of the Pool-length field, the on-line domain does not exceed the maximum number of user access number.
  3. From a corporate LAN a PC can obtain an IP address, but not dial L2TP VPN users.
  4. The address pool address range is from 100.0.0.2 to 100.0.0.99.

Answer(s): C



After the firewall creates a new security instance, the firewall does not have any security zones assigned to the new instance and the administrator needs to configure them.

  1. TRUE
  2. FALSE

Answer(s): B



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