A. Filter routes sent to BGP neighbors based on the AS PATH attribute that the route carries. For example, the command peer x.x.x.x as path-filter export

B. The apply clause in Route policy

C. The if-match clause in Route-policy

D. A Filters routes received from BGP neighbors based on the AS PATH attribute carried by the route, such as the command peer X.x.x.x as path-filter import

A. Digital signature

B. Public key information

C. Issued by

D. Digital envelopes

A. When the value of DSCP is EF, it indicates that the data belongs to the accelerated forwarding class.

B. The DSCP value can be 0, and packets use the default forwarding mechanism when 0

C. In addition to indicating the priority of the data, DSCP can also indicate the probability of data being discarded. The CS class in DSCP divides data into 8 priorities.

A. True

B. False

A. Interface for sending PIM Heilo messages.

B. The interface that is fast to the PIlM Join message

C. looks up the outgoing interface corresponding to the RP address in the unicast routing table

D. Interfaces to which multicast group members are directly connected

E. Find the outbound interface corresponding to the mapping proxy in the unicast routing table