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Free H12-721 Exam Braindumps
HCNP-Security-CISN (Huawei Certified Network Professional - Constructing Infrastructure of Security Network) Questions 96–100 (page: 21)

Updated On: 10-Feb-2026
Page 21 of 50
PDF with 245 Questions

With Blacklist, which part of the packets are examined to determine there is an attack?

  1. The source address
  2. destination address
  3. Source Port
  4. destination port

Answer(s): A



Which statement about IP-link features are correct? (Choose three answers)

  1. IP-link is a link connectivity detection function
  2. ARP detection methods only support direct link
  3. Firewalls will send ICMP or ARP packets to determine if the destination address is reachable to the destination address of a probe
  4. With IP-link and associated VGMP, when the IP-Link status becomes down, VGMP lowers the default priority management group by 3.

Answer(s): A,B,C



Refer to the following load balancing configuration:
[USG] slb enable [USG] slb
[USG-slb] rserver 1 rip 10.1.1.3 weight 32
[USG-slb] rserver 2 rip 14.1.1.4 weight 16
[USG-slb] rserver 3 rip 10.1.1.5 weight 32
[USG-slb] group test
[USG-slb-group-test] metric srchash
[USG-slb-group-test] add rserver 1
[USG-slb-group-test] add rserver 2
[USG-slb-group-test] add rserver 3

Which of the following statements is correct? (Choose two answers)

  1. The load balancing algorithm is the polling algorithm.
  2. The configuration is a complete load balancing configuration.
  3. Values of weight determine which data stream path should be used, the smaller weight values should correspond to the real server that has less processing capacity.
  4. Weight is the weight of a real weight.

Answer(s): C,D



About BFD detection mechanism, the following statement is correct? (Choose two answers)

  1. BFD control packets are encapsulated in TCP packets
  2. BFD provides two detection modes: asynchronous and synchronous mode
  3. After the establishment of a BFD session, both systems periodically send BFD control packets
  4. At the beginning of the session, the two sides negotiate through the control system carried in the packet parameters

Answer(s): C,D



An attacker sends a large number of SIP INVITE messages to the server, leading to a denial of service attack on the SIP server.
This attack occurs on which layer of the seven layer OSI model?

  1. Application Layer
  2. Network Layer
  3. Transport Layer
  4. Data Link Layer

Answer(s): A



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