Explanation
The least amount of CPU cores required to enable CoreXL is 2. CoreXL is a technology that improves the performance of Security Gateways by using multiple CPU cores to process traffic in parallel. CoreXL requires at least two CPU cores, one for SND (Secure Network Distributor) and one for a Firewall instance. The other options are either too few or too many CPU cores for enabling CoreXL. References: [Check Point R81 SecureXL Administration Guide], [Check Point R81 Performance Tuning Administration Guide]