CompTIA PenTest+ Practice Test

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What can be created from a DEX file to perform a static analysis?

Binary file
JAR (Java Archive) file
APK file
Source code file

The correct answer is: JAR (Java Archive) file

The correct choice is a JAR (Java Archive) file because a DEX (Dalvik Executable) file can be packaged into a JAR file for the purpose of static analysis. DEX files contain optimized bytecode that runs on the Dalvik Virtual Machine used by Android. Packaging this bytecode into a JAR allows security analysts and developers to analyze the structure and contents of the code without executing it, which is a critical step in understanding potential vulnerabilities within the application. A binary file typically refers to any file that is not a text file, meaning it could include a plethora of different formats that do not specifically relate to DEX files. The APK (Android Package) file is already a complete package containing the DEX files along with resources and assets used in an Android application, but it is not directly utilized for static analysis in the same way as a JAR file specifically intended for code analysis. Source code files are the human-readable forms of code written by developers, which do not stem from DEX files directly; thus, they also do not apply in this context.