What are two intrusion protection mechanisms available on SRX Series Services Gateways?

What are two intrusion protection mechanisms available on SRX Series Services Gateways?
(Choose two.)

A.
routing update detection

B.
traffic anomaly detection

C.
NAT anomaly protection

D.
DoS protection

Explanation:

Juniper IPS system prevents Traffic Anamoly detection and DoS/DDoS attacks.
Reference: http://www.juniper.net/in/en/products-services/software/router-services/ips/