Network administrator A wants to use the AS-Path Fiter to match the routing entries of the BGP routing attribute AS_PATH [100 200 300]. Network administrator A sorts out the four configurations in the figure. Which of the following configurations can satisfy network administrator A's requirements? Require?

As shown below:

IR2] ad 2000
[R2-ad-basic-2000]rule deny
[R2-ad-basic-2000]quit
#
[R2] ospf
[R2-ospf»1]area 1
[R2-ospM-area-0.0.0.1] filter 2000 import
[R2-ospf-1-area-0.0.0,1] quit
[R2-ospf-1] default-route-advertise always

According to the configuration shown in the figure below, you can know that how many interfaces of R4 are advertised into IS-IS?

By default, LDP adjacencies will trigger the establishment of LSP based on the IP routing of the 32bit address.

Regarding multi-instance CE (Mlulti-VPN-Instance CE, MCE), which of the following description is wrong?