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

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

2. Which of the following statements about hot standby is correct?

A) When the link status detection is enabled, and the incoming and outgoing messages are forwarded by the primary and standby USGs respectively, the USG does not enable rate-determining backup, and the TCP service can pass smoothly.
B) The firewall is connected to the router upstream and connected to the Layer 2 switch downstream. OSPF+VRRP can be used to achieve load balancing.
C) The slot numbers of the physical cards of the two devices can be different.
D) The default priority of the Active group is 65001, and the default priority of the Standby group is 65000.

3. View the session table information on the firewall as follows:
[USG] display firewall session table verbose
icmp VPN: public --> public
Zone: trust --> untrust TTL: 00:00:20 Left: 00:00:15
Interface: GigabitEthernet0/0/4 Nexthop: 2.2.2.2 MAC: 00-00-00-00-00-00
<-- packets: 0 bytes: 0 --> packets: 5 bytes: 420
192.168.1.2:44012[1.1.1.3:6103] --> 2.2.2.2:2048
The following descriptions are correct:

A) NAT destination address one-to-one address mapping is configured on the firewall.
B) The device at address 1.1.1.3 is pinging the public address 2.2.2.2.
C) The device at address 192.160.1.2 is pinging the public address 2.2.2.2.
D) NAPT source address many-to-one address mapping is configured on the firewall.

4. For some large IP data packets, in order to meet the requirements of the MTU (Maximum Transmission Unit) of the link layer, it needs to be fragmented and divided into several IP packets during the transmission process. In each IP header there is an offset field and a split flag (MF), where the offset field indicates the location of the fragment in the entire IP packet. If the attacker sets the offset field to an incorrect value after intercepting the IP data packet, the receiver cannot correctly combine the values of the offset field in the data packet after receiving the split data packets. In this way, the receiver will keep trying, and the operating system will crash due to resource exhaustion.
What is this attack method?

A) Teardrop Attack
B) Ip Fragmented Packet Attack
C) TCP packet flag attack
D) WinNuke Attack

5. In Agile Controller, what is the correct statement about the screen saver check policy ?

A) You can check if the screen saver is enabled on the terminal
B) Screen saver settings cannot be fixed automatically
C) Only supports Windows OS
D) Can check if the screen saver password is enabled

Solutions: