Choose the one which is not an Ensemble Modeling Technique | Agrigyan

• Software Deterioration and Entropy (Pressman):
• Physical hardware wears out due to physical friction, heat, and environmental fatigue.
• Software does not suffer physical wear-out; however, it deteriorates over time as it evolves because:
• Repeated maintenance cycles, bug patches, and new feature requests introduce architectural entropy.
• Unanticipated side effects and dependencies emerge between interacting components, increasing complexity and error rates.
• Conclusion: Multiple change requests introduce errors in component interactions (Option 3).

Correct option: (3) Multiple change requests introduce errors in component interactions.

• Digital Electronics - Multiplexer (MUX):
• multiplexer (MUX) or data selector is a combinational logic circuit that accepts multiple digital input lines ($2^n$) and directs one selected input to a single output line based on the status of $n$ select/control lines.
• Key Attributes:
• Inputs: Many ($2^n$)
• Outputs: Single (1)
• Select lines: $n$
• Conversely, a Demultiplexer (DEMUX) takes a single input and routes it to one of multiple outputs.
• Conclusion: Produces single output signal (Option 2).

Correct option: (2) Produces single output signal

• Queue as a FIFO Data Structure:
• Queue: A linear data structure operating under the FIFO (First-In, First-Out) principle, where elements are enqueued at the rear and dequeued from the front.
• Stack: Operates under the LIFO (Last-In, First-Out) principle (insertion and deletion at the same end/top).
• Linked List & Graph: Can support various access disciplines depending on pointer implementation.
• Conclusion: The FIFO data structure is Queues (Option 3).

Correct option: (3) Queues

• Formation of Thomson Reuters:
• On April 17, 2008, the Canadian information corporation The Thomson Corporation acquired the prominent British international news and financial data agency Reuters Group plc for £8.7 billion to form Thomson Reuters.
• Reuters was founded in London in 1851 by Paul Julius Reuter.
• Conclusion: Reuters Group was a British company (Option 4).

Correct option: (4) British