Which of the following statements are true regarding the SIP session helper and the SIP application layer gateway (ALG)? (Choose three.)
A . SIP session helper runs in the kernel; SIP ALG runs as a user space process.
B . SIP ALG supports SIP HA failover; SIP helper does not.
C . SIP ALG supports SIP over IPv6; SIP helper does not.
D . SIP ALG can create expected sessions for media traffic; SIP helper does not.
E . SIP helper supports SIP over TCP and UDP; SIP ALG supports only SIP over UD
Answer: B C D