Huawei HCIE-Security (Huawei Certified Internetwork Expert-Security) : H12-731-ENU Exam

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Huawei H12-731-ENU Exam Syllabus Topics:

Huawei HCIE-Security (Huawei Certified Internetwork Expert-Security) Sample Questions:

1. Regarding the firewall NAPT technology, the following description is incorrect:

A) NAPT is a technique for extending Layer 3 addresses with Layer 4 information.
B) When configuring NAPT on the firewall, the security policy should match the IP address after address translation.
C) NAPT can theoretically achieve 65535 private network addresses sharing a public network address to access the public network.
D) NAPT translates both the source IP address and the source port number.

2. Which of the following descriptions about IP-Link is incorrect?

A) It can provide reachability detection for multiple service modules such as static routing and VRRP.
B) Provides millisecond-level rate-determining reachability detection.
C) The linkage between static routes and IP-Link can be automatically checked. When a link failure is found, the static route of the opposite end will be adjusted accordingly.
D) Implement link detection based on ICMP echo request or ARP request.

3. In the dual-system hot-standby network, the service interface works at Layer 3, and the uplink and downlink are connected to the switches:

A) VGMP management group status is Active, priority is 65001, VGMP management group status is Standby, priority is 65000.
B) When the master/slave state switch occurs, the Active device publishes the free VARP of the virtual IP address of the VRRP backup group, and the Standby device also publishes the free ARP.
C) When USG1 fails or restarts, if USG2 fails to receive VGMP Hello packets sent by USG1 for 5 consecutive times, it considers that USG1 has failed and immediately switches to the master device.
D) When the link between USG1 and Switch3 is interrupted, the priority of the VGMP management group is reduced by 2.

4. The difference between IKEv1 and IKEv2, which of the following descriptions are correct?

A) IKEv2 can use AAA server to assign private IP address, IKEv1 cannot provide this function.
B) IKEv1 supports DPD by default. As long as DPD is configured on one end, the other end can respond to DPD packets. IKEv2 cannot.
C) IKE SA and IPsec SA are established, using 4 messages for IKEv2 and 9 messages for IKEV1 main mode.
D) The integrity algorithm of the IKE SA is only supported by IKEv1.

5. The ARP protocol is used to map the IP address to the correct MAC address, so that the device can encapsulate the correct frame header on the data frame to complete the data forwarding.
If the ARP table is abnormal, it will directly cause the device to fail to forward packets. In the dual-system hot backup scenario, which of the following descriptions are correct when the active and standby firewalls respond to ARP?

A) Configure the ARP proxy to request ARP source IP and destination IP in the same network segment at the same time.
B) Request VRRP virtual IP address, the current master device responds with virtual MAC, and the standby device does not respond.
C) Request the IP address of the NAT address pool, the current master device responds with a virtual MAC, and the standby device does not respond.
D) Request the real IP address of the interface and reply with the real MAC of the interface.

Solutions: