Software Engineering is part of Computer Science and holds 1,969 questions with answers, free to read and with no account needed.
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Answer: C. Domino
Achieving consistent recovery points prevents the domino effect in backward recovery. Uncoordinated checkpoints force dependent processes to roll back recursively. This cascading rollback phenomenon is known in distribut...
Answer: C. By testing of code
Testing code verifies that implemented software behavior matches established baseline functional requirements. Executing test suites uncovers deviations between expected results and actual program output. Code testing pr...
Answer: A. ISO 9000
ISO 9000 sets general quality management guidelines rather than serving as a software quality model. Software quality models establish specific metrics for evaluating application characteristics like reliability. Identif...
Answer: B. White box
White box testing methodology involves examining internal code structures and includes Cyclomatic Complexity. Testers use white box techniques to ensure all decision paths and logical branches are exercised thoroughly. C...
Answer: B. Black box testing
Black box testing is called behavioral testing because it examines inputs and outputs. Testers evaluate software functionality without inspecting internal source code implementation. Focusing on external behavior verifie...
Answer: A. Change Control Board
CCB stands for Change Control Board, an authorized group managing software modifications. This board evaluates proposed changes to configuration items for impact and feasibility. Approval from the CCB is required before...
Answer: A. forward error recovery mechanism
Exception handling is a classic form of forward error recovery mechanism. It catches runtime errors and guides execution forward to a safe state. This approach repairs or bypasses the error without rolling back time. For...
Answer: C. Users
Beta testing is performed by real end users in their own operational environment before final release. Actual user feedback helps uncover unexpected usability issues and environment-specific software bugs. Involving exte...
Answer: A. ISO 9000
ISO 9000 is an overarching quality management standard rather than a specific software quality model. Models like McCall Boehm and ISO 9126 specifically define software quality attributes and metrics. Recognizing ISO 900...
Answer: A. time
Software reliability is measured strictly in relation to elapsed operational time and failure probability. It represents the statistical likelihood that software will execute without failure over a specified duration. Ti...
Answer: A. Process control
ISO 9001 process control ensures production and service provision occur under controlled conditions. Inspections and testing fall directly under this management responsibility to verify quality. Controlled conditions gua...
Answer: A. Developer’s end
Alpha testing is conducted at the developer's end in a controlled internal environment. Internal staff observe users or execute test cases directly within the developer's facilities. This precedes beta testing, which tak...
Answer: C. greater than 2
In N-version programming the value of N must be greater than two. Multiple independent software versions run in parallel for fault tolerance. A majority voting system requires at least three versions to resolve disputes....
Answer: B. 3
McCall quality model categorizes software product quality factors into three distinct high-level perspectives. Product operation, revision, and transition form the foundational pillars of McCall's framework. These three...
Answer: D. All of the mentioned
System reliability is achieved through a comprehensive strategy combining fault prevention removal and tolerance. Preventing faults stops errors during design while removal eliminates bugs during testing phases. Fault to...
