While automated tests can efficiently handle repetitive tasks, manual testing is indispensable for exploratory testing (where testers actively explore the application to identify issues) and usability checks to ensure a user-friendly experience.

The "Assigned" bug status signifies that the bug has been assigned to a developer and is currently being addressed. "Open" means the bug has been recognized but might not be attended to yet. "Closed" denotes that the bug has been resolved. "Verified" signifies that the tester has verified the fix.

Cyclomatic complexity, introduced by Thomas McCabe, quantifies the complexity of a program by calculating the number of linearly independent paths through the source code. A higher cyclomatic value indicates a complex program with many branches, which may require more extensive testing to ensure each path is evaluated. It aids testers in assessing risks associated with the intricate logic of the code.

Disabling the service is the immediate action to consider when an unauthorized service is running on an open port. This will prevent potential exploitation while the situation is further assessed. Running a malware scan is important, but the immediate threat is mitigated by stopping the service.

Functional testing aims to validate the app's features by ensuring they function according to specified requirements. It verifies each function of the software application by feeding them input and examining the output.

In the V-model, each development stage corresponds to a testing phase. As the development progresses downwards on the left side of the "V", testing activities are prepared. When development reaches integration and system levels, the testing phases commence upwards on the right side of the "V". This ensures that testing is integrated in parallel with development, unlike the Waterfall model where testing happens after the entire development phase.

The risk avoidance strategy involves taking actions to remove the threat or condition that represents the risk entirely, essentially ensuring that the risk event doesn't occur. This strategy is employed when risks are deemed too high and cannot be mitigated.

QTP stands for QuickTest Professional. However, it was later rebranded by Hewlett-Packard (HP) as "Unified Functional Testing" (UFT). UFT provides a comprehensive solution for functional and regression testing and is one of the most popular tools in the testing industry for automating GUI testing tasks.

Exit criteria in the Software Testing Life Cycle (STLC) are a pre-defined set of conditions or metrics which must be achieved to conclude a testing phase. These conditions could include factors like achieving a certain percentage of test coverage, a limited number of high-severity defects remaining open, meeting performance benchmarks, etc. Having a clear exit criteria ensures that a testing phase achieves its intended quality objectives before moving to the next phase.

Decision Coverage in white-box testing ensures that each decision point or branch has been executed for both 'true' and 'false' conditions. It is more robust than simple statement coverage because it ensures that each decision leads the control flow in both directions.