In R81, spoofing is defined as a method of making packets appear as if they come from an authorized IP address. Spoofing can be used by attackers to bypass security policies or hide their identity. Check Point firewalls use anti-spoofing mechanisms to prevent spoofed packets from entering or leaving the network.
References: Security Gateway R81 Administration Guide:

Explanation
SecureXL uses templates to accelerate the connection rate by creating a connection entry in the SecureXL Connections Table without notifying the Firewall kernel for a predefined period of time1. This reduces the load on the Firewall kernel and improves the performance of new connections1. SecureXL uses five attributes to identify a connection and create a template: source address, destination address, source port, destination port, and protocol2. These attributes form a unique 5-tuple that defines a connection2.
References: : ATRG: SecureXL for R80.20 and higher : Performance Tuning Administration Guide R80

Explanation
The component that is not required to communicate with the Web Services API is the API key. The Web Services API uses a session ID token for authentication, which is obtained by sending a login request with a valid username and password. The other components are required for sending requests and receiving responses from the Web Services API. The content-type specifies the format of the data being sent or received, such as JSON or XML. The request payload contains the data and parameters for the API call, such as command name, object name, etc. References: [Web Services API Reference Guide]

Explanation
The CPU load on a Secure Network Distributor (SND) indicates how much processing power is available for distributing traffic among cluster members. If the CPU load is high, it means that the SND is overloaded and cannot handle more traffic efficiently. A good indicator of SND overload is when the Idle CPU percentage is less than 20%. In this case, you may need to add another SND to balance the load or optimize your cluster configuration. References: Getting Started - Check Point Software, section "Monitoring ClusterXL Status"

Explanation
SecureXL is a technology that improves the performance of the Security Gateway by offloading CPU-intensive operations to a dedicated hardware or software module. SecureXL uses templates to accelerate traffic processing based on predefined patterns and conditions. SecureXL supports three types of templates:
Accept Templates, Drop Templates, and NAT Templates3.
Accept Templates are used to accelerate traffic that matches an Accept rule in the Security Policy.
Accept Templates bypass most of the inspection stages and send packets directly to the network interface.
Drop Templates are used to accelerate traffic that matches a Drop rule in the Security Policy. Drop Templates drop packets without sending them to the firewall kernel for inspection.
NAT Templates are used to accelerate traffic that requires Network Address Translation (NAT). NAT Templates perform NAT operations without sending packets to the firewall kernel.
Therefore, the correct answer is B.
References: 3: SecureXL for R80.20 and higher