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H12-721 PDF DEMO:
QUESTION NO: 1
From the branch offices, servers are accessed from the Headquarters via IPsec VPN. An IPSEC tunnel can be established at this time, but communication to the servers fails. What are the possible reasons? (Choose three answers)
A. Packet fragmentation, the fragmented packets are discarded on the link.
B. Presence opf dual-link load balancing, where the path back and forth may be inconsistent.
C. Route flapping.
D. Both ends of the DPD detection parameters are inconsistent.
Answer: A,B,C
QUESTION NO: 2
Which of the following statements about IPsec and IKE following are correct? (Choose three answers)
A. With IPsec there are two ways to establish the security association, manual mode (manual) and
IKE auto-negotiation (Isakmp) mode.
B. IKE aggressive mode can be selected based on negotitations initiated by the tunnel endpoint IP address or ID, to find the corresponding authentication word and finalize negotiations.
C. The NAT traversal function is used to delete the IKE negotiation verification process for UDP port numbers, while achieving a VPN tunnel to discover the NAT gateway function. If a NAT gateway device is used, then the data transfer after the IPsec uses UDP encapsulation.
D. IKE security mechanisms include DH Diffie-Hellman key exchange and distribution; improve the security front (Perfect Forward Secrecy PFS), encryption, and SHA1 algorithms.
Answer: A,B,C
QUESTION NO: 3
The DHCP Snooping binding table function needs to maintain its binding table of contents that include? (Choose three answers)
A. MAC
B. Vlan
C. Interface IP
D. DHCP Server's
Answer: A,B,C
QUESTION NO: 4
With the Huawei abnormal flow cleaning solution, deployed at the scene of a bypass, drainage schemes can be used to have? (Choose three answers)
A. Dynamic routing drainage
B. Static routing strategy drainage
C. Static routing drainage
D. MPLS VPN cited
Answer: A,B,C
QUESTION NO: 5
The IP-MAC address binding configuration is as follows:
[USG] firewall mac-binding 202.169.168.1 00e0-fc00-0100
When the data packets travel through the Huawei firewall device, and other strategies such as packet filtering, attack prevention are not considered, the following data ttravels hrough the firewall device? (Choose two answers)
A. Packet source IP: 202.169.168.1 Packet source MAC: FFFF-FFFF-FFFF
B. Packet source IP: 202.169.168.2 Packet source MAC: 00e0-fc00-0100
C. Packet source IP: 202.1.1.1 Packet source MAC: 00e0-fc11-1111
D. Packet source IP: 202.169.168.1 Packet source MAC: 00e0-fc00-0100
Answer: C,D
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Updated: May 28, 2022