Which of the following are label distribution control modes in the MPLS system? (Multiple Choice)

Which queue technology is used to implement the Best-Effort Service model?

Application Specific Packet Filter (ASPF) is packet filtering based on the application layer. ASPF checks application layer protocol information, monitors the application layer protocol status of connections, and uses the Servermap table to achieve a special security mechanism.
Which of the following statements regarding ASPF and Servermap is false?

Which QoS indicator are affected by network congestion? (Multiple Choice)

Which of the following steps are required when configuring a DHCP relay agent? (Multiple Choice)