多选题Which two features protect the ERX Edge Router from denial-of-service attacks? （）(Choose two.)Arate limiting of ICMPBRADIUS authorizationsCsource address validationDstateful firewall on the router
题目
多选题
Which two features protect the ERX Edge Router from denial-of-service attacks? （）(Choose two.)
A
rate limiting of ICMP
B
RADIUS authorizations
C
source address validation
D
stateful firewall on the router