Fill in the blank: __________ information is included in "Full Log" tracking option, but is not included in "Log" tracking option?

An administrator is creating an IPsec site-to-site VPN between his corporate office and branch office. Both offices are protected by Check Point Security Gateway managed by the same Security Management Server. While configuring the VPN community to specify the pre-shared secret the administrator found that the check box to enable pre-shared secret and cannot be enabled.
Why does it not allow him to specify the pre-shared secret?

What feature allows Remote-access VPN users to access resources across a site-to-site VPN tunnel?

What is the recommended configuration when the customer requires SmartLog indexing for 14 days and SmartEvent to keep events for 180 days?

What can we infer about the recent changes made to the Rule Base?