SecureXL improves non-encrypted firewall traffic throughput and encrypted VPN traffic throughput.

A. This statement is true because SecureXL does improve all traffic

B. This statement is false because SecureXL does not improve this traffic but CoreXL does

C. This statement is true because SecureXL does improve this traffic

D. This statement is false because encrypted traffic cannot be inspected

Explanation:

SecureXL improved non-encrypted firewall traffic throughput, and encrypted VPN traffic throughput, by nearly an order-of-magnitude- particularly for small packets flowing in long duration connections.

Reference: https://downloads.checkpoint.com/fileserver/SOURCE/direct/ID/10001/FILE/SecureXL_and_Nokia_IPSO_White_Paper_20080401.pdf