To answer this question, we need to understand what black box testing techniques are. Black box testing is a software testing method in which the internal structure, design, or implementation details of the system being tested are not known to the tester. Instead, the tester focuses on the inputs and outputs of the system to ensure that it functions correctly.
Let's go through each option to understand why it is correct or incorrect:
Option A) State transition testing - This option is a black box technique. State transition testing focuses on testing the behavior of a system as it transitions between different states. It does not rely on knowledge of the internal structure or implementation details of the system.
Option B) LCSAJ (Linear Code Sequence and Jump) - This option is NOT a black box technique. LCSAJ is a white box testing technique. It involves analyzing the code structure and execution paths to identify linear code sequences and jump statements for testing purposes. It requires knowledge of the internal structure and implementation details of the system.
Option C) Syntax testing - This option is a black box technique. Syntax testing involves testing the input and output behavior of a system based on its syntax rules. It does not require knowledge of the internal structure or implementation details of the system.
Option D) Boundary value analysis - This option is a black box technique. Boundary value analysis involves testing the behavior of a system at the boundaries of input values. It does not rely on knowledge of the internal structure or implementation details of the system.
The correct answer is Option B) LCSAJ (Linear Code Sequence and Jump). This option is not a black box technique because it requires knowledge of the internal structure and implementation details of the system.