WB JECA MCA Software Engineering Previous Year Question Paper and Solution with PDF

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WB JECA MCA Previous Year Questions (PYQs)

WB JECA MCA Software Engineering PYQ

Qus : 1 WB JECA MCA PYQ

In software engineering, what is the full form for PERT chart?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2023 PYQ

Solution

Program Evaluation and Review Technique

Qus : 2 WB JECA MCA PYQ

In software engineering, the testing performed by development team is known as ______.

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2023 PYQ

Solution

Alpha testing is performed internally by the development team before releasing the software for beta testing.

Qus : 3 WB JECA MCA PYQ

In software engineering, a prototyping model can be used when __________.

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2023 PYQ

Solution

Technical solutions are unclear to the development team

Qus : 4 WB JECA MCA PYQ

60.In classical waterfall model, which phase comes before the design phase?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2023 PYQ

Solution

Requirements analysis and specification

Qus : 5 WB JECA MCA PYQ

In software engineering, which of the following is not a type of cohesion?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2023 PYQ

Solution

Projection” is not a type of cohesion.

Qus : 6 WB JECA MCA PYQ

A risk in a software project has a probability of occurrence of 0.3 and the potential loss if it occurs is estimated to be Rs 2,00,000. What is the Risk Exposure (RE) for this risk?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

RE = Probability × Loss = 0.3 × 200000 = 60000.

Qus : 7 WB JECA MCA PYQ

In software engineering, which of the following is not a type of coupling?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2023 PYQ

Solution

Coupling types are Data, Stamp, Control, Common, Content.
“Connection” is not a coupling type.

Qus : 8 WB JECA MCA PYQ

Which metric gives the best measure of efficiency in a defect discovery process across software development phases?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

DRE measures effectiveness of defect detection across phases.

Qus : 9 WB JECA MCA PYQ

Choose the correct option as the activities of the first quadrant of Spiral model.

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2023 PYQ

Solution

Determine objectives, alternatives and constraints

Qus : 10 WB JECA MCA PYQ

Which testing approach specifically ensures that all logical conditions in a decision are tested at least once?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

Condition coverage ensures each condition is tested true and false.

Qus : 11 WB JECA MCA PYQ

Choose the appropriate black-box testing technique in software engineering.

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2023 PYQ

Solution

Boundary Value Analysis (BVA) is a black-box testing technique used to check inputs at their boundary values.

Qus : 12 WB JECA MCA PYQ

Which of the following pairs correctly matches the type of testing with its main focus or environment?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

Alpha testing is performed at developer site before release.

Qus : 13 WB JECA MCA PYQ

In the context of software quality management, which of the following focuses on preventing defects rather than detecting them?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

QA focuses on prevention, QC/testing focus on detection.

Qus : 14 WB JECA MCA PYQ

Which process model is best suited when requirements are well understood and unlikely to change?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

Waterfall suits stable requirements.

Qus : 15 WB JECA MCA PYQ

Which testing strategy is performed without knowledge of the internal code?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

Black-box testing ignores internal code.

Qus : 16 WB JECA MCA PYQ

Which design principle aims to reduce dependencies between modules?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

Low coupling reduces dependency.

Qus : 17 WB JECA MCA PYQ

Correct sequence of Risk Management process is

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

Standard RM sequence starts with identification then assessment.

Qus : 18 WB JECA MCA PYQ

Which of the following testing methods is normally used as the acceptance test for a software system?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

Acceptance testing is functional validation.

Qus : 19 WB JECA MCA PYQ

A software module contains 1500 lines of code and 15 defects were found during testing. What is the defect density of the module?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

Defect density = 15/1.5 = 10 defects/KLOC.

Qus : 20 WB JECA MCA PYQ

A development team found 90 defects during the design phase. However, 10 additional design defects were discovered during the testing phase. What is the Defect Removal Efficiency (DRE) for the design phase?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

DRE = 90/(90+10)=90%.

Qus : 21 WB JECA MCA PYQ

Which of the following are true about cyclomatic complexity?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

Cyclomatic complexity counts independent paths; higher value = more complex.

Qus : 22 WB JECA MCA PYQ

A testing phase executes 180 test cases out of 200 planned, with 162 passes and 18 failures. Which are true?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

Execution=180/200=90%, Pass=162/180=90%, Req=85%.

Qus : 23 WB JECA MCA PYQ

What is the maximum number of level-2 DFD possible if the number of processes in level-1 DFD is n ?

(A) $\frac{n}{2}$

(B) 2

(D) n

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2024 PYQ

Solution

In a Data Flow Diagram (DFD), each process in level-1 can be decomposed further into its own level-2 diagram.

Therefore, if there are n processes at level-1, then maximum possible level-2 DFDs = n.

Correct Answer: (D) $n$

Qus : 24 WB JECA MCA PYQ

In the context of Software Development Life Cycle (SDLC), which of the following statements is correct?

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Solution

V-model aligns testing with each development phase.

Qus : 25 WB JECA MCA PYQ

In software engineering the tester does not know the internal designs of the software application in case of _____ testing.

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2024 PYQ

Solution

Solution: Black-box testing validates functionality without knowledge of internal code/design.
Answer: (B) Black Box

Qus : 26 WB JECA MCA PYQ

_____ is a measure of the degree of interdependence between modules.

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2024 PYQ

Solution

Solution: Coupling measures interdependence between modules; cohesion measures internal relatedness within a module.
Answer: (B) Coupling

Qus : 27 WB JECA MCA PYQ

_____ specification is also known as the SRS document.

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2024 PYQ

Solution

Solution: SRS (Software Requirement Specification) = Black-box specification (focuses on external behavior).
Answer: (C) Black-box

Qus : 28 WB JECA MCA PYQ

_____ is not among the eight principles followed by the Software Code of Ethics and Professional Practice.

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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2024 PYQ

Solution

Solution: The eight principles include: Public, Client, Product, Judgment, Management, Profession, Colleagues, Self. Environment is not one of them.
Answer: (B) ENVIRONMENT

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