1. Which of the following is included in the main features of the stateful inspection firewall?

2. The main feature of Overlay VPN is that the customer's routing protocol is always exchanged between the client devices, and the service provider knows nothing about the internal structure of the client.

3. Under the trend of mobileization, what new requirements does the enterprise put on the traditional network? (Multiple Choice)

4. In the process of establishing an LDP session, in order to establish TCP, which party initiates the initialization message?

5. The advantages of PQ+WFQ are: (Multiple Choice)

6. The NAT server function refer to map a public IP address to the private IP address of the server. It is a way to translate the destination IP address of the packet.

7. The correct statement about ASPF and Server-map is: (Multiple Choice)

8. Which of the following working mode is available under the interface of the firewall? (Multiple Choice)

9. By default, the VRRP of the Huawei AR router runs in the preemptive mode.

10. Regarding the description of VRRP load sharing, the correct one is: (Multiple Choice)

11. The BFD single arm echo function can be used for 2 devices that are not directly connected.

12. VXLAN encapsulates Layer 2 packets for Layer 3 protocols in Mac in TCP encapsulation.

13. The Integrated Service service model releases bandwidth resources when there is no traffic, and the resource utilization is high.

14. The path that the IP packet passes through the MPLS network is called the Label Swithed Path (LSP). This path is determined and established through various protocols before forwarding the packet. The packet will be passed on the specified LSP.

15. The LDP Discovery message is used for neighbor discovery, and LDP has different discovery mechanisms when discovering neighbors. The following statements are about the Discovery message in the basic discovery mechanism, which is correct? (Multiple Choice)

16. BFD can only be used in combination with the protocol modules of the network layer and the data link layer.

17. Which of the following description of VRRP is wrong?

18. Regarding the description of VRRP fast switching, the error is: (Multiple Choice)

19. In the esight subnet, the resources that can be managed which described correctly are: (Multiple Choice)

20. Regarding the PC to obtain the address from the DHCP server, which of the description of used command is correct? (Multiple Choice)