156-315.81 Exam Dumps : Check Point Certified Security Expert R81.20

 SSL Network Extender (SNX) has two modes of operation: Network Mode and Application Mode. Network Mode provides full network connectivity to the remote user, while Application Mode provides access to specific applications on the corporate network. References: [SSL Network Extender]

The NAT rules that are prioritized first are Manual/Pre-Automatic NAT. NAT stands for Network Address Translation, and it is a feature that allows Security Gateways to modify the source or destination IP addresses or ports of packets that pass through them. NAT rules are the rules that define how NAT is applied to traffic that matches certain criteria. There are three types of NAT rules: Manual/Pre-Automatic NAT, Automatic NAT, and Manual/Post-Automatic NAT. Manual/Pre-Automatic NAT rules are the rules that are manually created by administrators and placed before the automatic NAT rules in the rulebase. These rules have the highest priority and are processed first by the Security Gateway. Automatic NAT rules are the rules that are automatically generated by the Security Gateway based on the NAT properties of network objects. These rules have the second highest priority and are processed after the manual/pre-automatic NAT rules. Manual/Post-Automatic NAT rules are the rules that are manually created by administrators and placed after the automatic NAT rules in the rulebase. These rules have the lowest priority and are processed last by the Security Gateway. 

According to the Check Point website, GAiA Software update packages can be imported and installed offline in situation where the Security Gateway with GAiA does not have access to Internet. This allows you to manually download the packages from another device and transfer them to the Security Gateway using a USB drive or other media. The other situations are either not relevant or not possible. References: Offline Software Updates