Which two models of the PIX Firewall make the VPN accelerator card available? (Choose two)

A.
Model number 535

B.
Model number 515

C.
Model number 505

D.
Model number 503

E.
Model number 501

Explanation:

System Requirements
Operating System: PIX OS v5.3(1) or later (with DES or 3DES license) Platforms: PIX 515/515E, 520, 525, 535 (limit one per chassis) Reference: Cisco PIX 500 Series Firewalls – Cisco PIX Firewall VPN Accelerator Card