Explanation
The default shell of the CLI is called clish
References:

Explanation
https://sc1.checkpoint.com/documents/R81/WebAdminGuides/EN/CP_R81_NextGenSecurityGateway_Guide/T

The feature that is not provided by all Check Point Mobile Access solutions is support for IPv6. Check Point Mobile Access is a comprehensive solution that provides secure remote access to corporate applications and resources using various methods, such as SSL VPN, IPsec VPN, clientless VPN, and mobile VPN. However, not all of these methods support IPv6, which is the latest version of the Internet Protocol that uses 128-bit addresses. According to the Check Point Mobile Access R81 Administration Guide1, only the following Mobile Access methods support IPv6:
SSL Network Extender (SNX) - a thin client that enables remote users to connect securely to the corporate network using SSL/TLS VPN.
Mobile VPN - a full VPN client that enables remote users to connect securely to the corporate network using IPsec VPN.
Capsule Connect - a mobile VPN app for iOS and Android devices that enables remote users to connect securely to the corporate network using IPsec VPN.
The following Mobile Access methods do not support IPv6:
Clientless VPN - a web-based method that enables remote users to access web applications and services using a web browser without installing any software on their devices.
Endpoint Security VPN - a full VPN client that enables remote users to connect securely to the corporate network using IPsec VPN and also provides endpoint security features such as firewall, anti-virus, anti-malware, etc.
Capsule Workspace - a mobile app for iOS and Android devices that enables remote users to access email, calendar, contacts, and corporate applications securely without requiring a VPN connection.

The Check Point software blade that provides protection from zero-day and undiscovered threats is Threat Emulation. Threat Emulation is a sandboxing technology that inspects files for malicious behavior in a virtual environment before they reach the end user. Threat Emulation can detect and block malware that tries to evade traditional signature-based solutions by using unknown or obfuscated techniques. Threat Emulation can also generate forensic reports and provide actionable intelligence on the malware origin and behavior.