The two security policy features that provide the capability to permit access to an application but block its sub-applications are URL filtering and micro application detection. URL filtering allows you to create policies that permit or block access to certain websites or webpages based on URL patterns. Micro application detection is a more sophisticated approach that can identify and block specific applications, even if they are embedded within other applications or websites. "micro application detection is the most accurate way to detect and control applications." Content filtering and APPID are more general approaches and are not as effective in providing the level of granularity needed to block sub-applications.

You have exceeded the maximum files submission for your SRX platform size: This statement is correct because file scanning on SRX300 Series device has a limit on the number of files that can be submitted per minute based on the platform size. For example, SRX320 has a limit of 10 files per minute.