To answer this question, let's go through each option to understand why it is correct or incorrect:
Option A) Black box security testing - This option is correct because AppScan is a black box security testing tool. Black box testing refers to testing the application without having any knowledge of its internal structure or code. AppScan scans the application from the outside to identify any potential security vulnerabilities.
Option B) White box security testing - This option is incorrect because AppScan does not focus on the internal structure or code of the application. White box testing involves testing the application with knowledge of its internal workings.
Option C) Gray box security testing - This option is incorrect because AppScan does not fall under gray box security testing. Gray box testing involves having partial knowledge of the internal structure or code of the application.
Option D) Blue box security testing - This option is incorrect because blue box testing is not a commonly recognized term in the context of security testing.
The correct answer is A) Black box security testing. This option is correct because AppScan is a tool used for testing the security of an application from the outside, without any knowledge of its internal structure or code.