Software Maintenance: Importance, Types, and Models

Question 1

Which of the following is **not** a type of software maintenance activity?

Accepted Answer

Retirement

Answer

Adaptive Maintenance

Answer

Perfective Maintenance

Question 2

Which software maintenance model involves iterative development, continuous feedback, and ongoing adjustments?

Accepted Answer

Agile Model

Answer

Waterfall Model

Answer

Spiral Model

Question 3

How does preventive maintenance help reduce the overall cost of software ownership?

Accepted Answer

Prevents costly emergency maintenance interventions

Answer

Eliminates the need for corrective maintenance

Answer

Guarantees no software defects will occur

Question 4

Which of the following is NOT a type of software maintenance activity?

Accepted Answer

Design

Answer

Corrective Maintenance

Answer

Perfective Maintenance

Answer

Adaptive Maintenance

Question 5

Which maintenance model emphasizes the identification and resolution of software defects?

Accepted Answer

Corrective Maintenance Model

Answer

Preventive Maintenance Model

Answer

Adaptive Maintenance Model

Answer

Perfective Maintenance Model

Question 6

Modifying software to enhance its performance, usability, or efficiency is considered:

Accepted Answer

Perfective Maintenance

Answer

Adaptive Maintenance

Answer

Corrective Maintenance

Answer

Preventive Maintenance

Question 7

The purpose of _ maintenance is to adjust software to accommodate changes in its operational environment.

Accepted Answer

Adaptive

Answer

Corrective

Answer

Preventive

Answer

Perfective

Question 8

Which maintenance model involves periodic reviews and updates aimed at preventing software failures?

Accepted Answer

Preventive Maintenance Model

Answer

Corrective Maintenance Model

Answer

Adaptive Maintenance Model

Answer

Perfective Maintenance Model

Question 9

The process of detecting and rectifying software defects is known as:

Accepted Answer

Corrective Maintenance

Answer

Adaptive Maintenance

Answer

Preventive Maintenance

Answer

Perfective Maintenance

Question 10

The _ Maintenance Model focuses on enhancing software quality attributes like efficiency and usability.

Accepted Answer

Perfective

Answer

Corrective

Answer

Preventive

Answer

Adaptive

Question 11

The primary goal of software maintenance is to:

Accepted Answer

Ensure the software consistently meets business requirements and user expectations

Answer

Minimize software defects

Answer

Reduce software development expenses

Question 12

Which software maintenance model aims to prevent defects from arising?

Accepted Answer

Preventive maintenance

Answer

Perfective maintenance

Answer

Corrective maintenance

Answer

Adaptive maintenance

Question 13

What is the primary purpose of software refactoring?

Accepted Answer

Improving the internal structure of software without altering its behavior

Answer

Adding new features to software

Answer

Resolving software defects

Question 14

In software maintenance, what is the role of regression testing?

Accepted Answer

Verifying that software modifications do not compromise existing functionalities

Answer

Identifying new defects in software

Answer

Enhancing software performance

Question 15

Explain the distinction between corrective and adaptive maintenance.

Accepted Answer

Corrective maintenance rectifies defects, whereas adaptive maintenance modifies software to accommodate evolving business requirements

Answer

Corrective maintenance is planned, while adaptive maintenance is unplanned

Question 16

Which of the following is **NOT** a primary type of software maintenance activity?

Accepted Answer

Software Enhancement

Answer

Perfective Maintenance

Answer

Adaptive Maintenance

Answer

Corrective Maintenance

Question 17

What is the primary goal of corrective maintenance?

Accepted Answer

To fix defects and resolve identified problems in the software.

Answer

To add new features or enhance existing ones in the software.

Answer

To improve software performance and efficiency.

Answer

To adapt software to changing requirements or new environments.

Question 18

Which software maintenance model focuses on preventing failures and emphasizes preventive maintenance?

Accepted Answer

Reliability-Centered Maintenance (RCM)

Answer

Corrective Maintenance Model (CMM)

Answer

Total Quality Management (TQM)

Answer

Software Maintenance Maturity Model (SMMM)

Question 19

What is the primary role of version control systems in software maintenance?

Accepted Answer

To track and manage changes, allowing multiple versions of the software to be maintained simultaneously.

Answer

To plan and schedule maintenance activities and tasks.

Answer

To identify and fix software defects and problems.

Question 20

Which metric is specifically used to evaluate and measure software maintainability?

Accepted Answer

Maintainability Index

Answer

Code Coverage

Answer

Cyclomatic Complexity

Answer

Test Coverage

Question 21

What is the main objective of a comprehensive software maintenance plan?

Accepted Answer

To define the scope, establish a timeline, and allocate resources for software maintenance activities.

Answer

To identify and prioritize software defects and issues.

Answer

To measure the effectiveness and efficiency of maintenance efforts.

Question 22

Why are continuous monitoring and testing crucial in the context of software maintenance?

Accepted Answer

To detect and resolve software defects promptly, minimizing their impact.

Answer

To improve the performance and speed of the software.

Answer

To reduce the need for corrective maintenance in the future.

Answer

To ensure software compliance with regulatory standards.

Question 23

Which approach is considered a best practice for involving users in software maintenance processes?

Accepted Answer

Regularly collecting and incorporating feedback from users.

Answer

Only involving users in major software updates and releases.

Answer

Granting users direct access to fix software defects.

Answer

Restricting user access to software maintenance documentation.

Question 24

What is the overarching purpose of software refactoring?

Accepted Answer

To enhance the internal structure and design of software without altering its functionality.

Answer

To fix software defects and resolve identified issues.

Answer

To add new features or modify existing ones in the software.

Question 25

Which of the following is NOT considered a primary type of software maintenance activity?

Accepted Answer

Development

Answer

Perfective

Answer

Adaptive

Answer

Corrective

Question 26

Which maintenance model provides a standardized framework for managing and improving software maintenance processes?

Accepted Answer

CMM

Answer

ITIL

Answer

ISO 9001

Answer

Six Sigma

Question 27

What is the primary objective of corrective maintenance?

Accepted Answer

To identify and resolve software defects

Answer

To enhance software functionality

Answer

To adapt software to changing requirements

Question 28

Which of the following is a key benefit of employing a maintenance management tool?

Accepted Answer

Enhanced coordination and improved maintenance task tracking

Answer

Reduced software development time

Answer

Increased software reliability

Answer

Lower hardware costs

Question 29

What is the primary purpose of a maintenance backlog?

Accepted Answer

Prioritizing and scheduling maintenance activities

Answer

Communicating with stakeholders

Answer

Estimating maintenance costs

Answer

Documenting maintenance history

Question 30

Which of the following is considered a best practice for adaptive maintenance?

Accepted Answer

Regularly reviewing and updating software requirements

Answer

Outsourcing maintenance tasks to external vendors

Answer

Implementing frequent software updates

Answer

Extensive use of automated testing tools

Question 31

What is the main focus of preventive maintenance in software engineering?

Accepted Answer

Preventing software defects and potential issues

Answer

Enhancing software functionality

Answer

Improving software performance

Answer

Fixing software defects

Question 32

Which of the following is NOT a primary type of software maintenance as defined in the textbook?

Accepted Answer

Re-engineering

Answer

Corrective Maintenance

Answer

Perfective Maintenance

Answer

Adaptive Maintenance

Question 33

A software company needs to modify an application to work with a new operating system. Which type of maintenance is this?

Accepted Answer

Adaptive Maintenance

Answer

Corrective Maintenance

Answer

Preventive Maintenance

Answer

Perfective Maintenance

Question 34

What is the primary objective of Perfective Maintenance?

Accepted Answer

Enhance functionality and improve performance beyond the original requirements.

Answer

Adapt the software to changes in the operating environment or hardware.

Answer

Fix errors and defects that arise in the deployed software.

Question 35

Which of the following is a significant challenge faced in Software Maintenance?

Accepted Answer

Comprehending the design and code written by other developers.

Answer

Eliciting and understanding initial software requirements from users.

Answer

Coming up with new features to add as software enhancements.

Answer

Designing user interfaces that meet evolving user expectations.

Question 36

What is the purpose of Regression Testing in the context of software maintenance?

Accepted Answer

To re-execute tests after changes to ensure existing functionality is not affected.

Answer

To check the performance and scalability of the software under varying conditions.

Answer

To execute tests for the first time to check if the software functions as expected.

Question 37

Which metric is used to assess the ease of maintaining software?

Accepted Answer

Cyclomatic Complexity

Answer

Execution Time of the Code

Answer

Database Query Optimization

Answer

User Interface Response Time

Question 38

What is the function of Impact Analysis in Software Maintenance?

Accepted Answer

To evaluate the potential consequences and impact of planned modifications on the software.

Answer

To automate the generation of test cases for the software application.

Answer

To define and analyze user requirements for new features or enhancements.

Question 39

Which of the following is an advantage of utilizing a Version Control System for software maintenance?

Accepted Answer

It keeps a history of changes and allows reversion to previous versions if necessary.

Answer

It automatically generates test cases for the software.

Answer

It optimizes the database schema for improved performance.

Question 40

Why is Software Maintenance often considered the most expensive phase of the Software Development Lifecycle?

Accepted Answer

It encompasses a substantial portion of the software's lifetime and involves continuous activities.

Answer

Maintenance tasks primarily involve quick fixes for minor issues.

Answer

Developing new software from scratch is generally much more inexpensive.

Question 41

Which type of software maintenance aims to enhance the system's performance, reliability, or security without altering its core functionality?

Accepted Answer

Perfective maintenance

Answer

Corrective maintenance

Answer

Adaptive maintenance

Question 42

Identifying and resolving software defects falls under which type of maintenance activity?

Accepted Answer

Corrective maintenance

Answer

Adaptive maintenance

Answer

Preventive maintenance

Answer

Perfective maintenance

Question 43

Which software maintenance model prioritizes regular, incremental system updates to drive gradual improvement over time?

Accepted Answer

Evolutionary model

Answer

Waterfall model

Answer

Spiral model

Question 44

Which factors significantly influence a software system's maintainability?

Accepted Answer

Code modularity, thorough documentation, and testability.

Answer

Development team size, project budget, and timelines.

Answer

Hardware specifications, user interface design, and marketing strategies.

Question 45

What is the primary objective of software maintenance?

Accepted Answer

To continuously ensure the software fulfills user requirements and expectations.

Answer

To minimize development costs by reusing existing code.

Answer

To completely eliminate all software bugs and errors.

Question 46

In the context of software maintenance, what is the purpose of regression testing?

Accepted Answer

To verify that software changes haven't compromised existing functionality.

Answer

To test new features and enhancements added to the software.

Answer

To detect and address security vulnerabilities in the software.

Question 47

For large, complex software systems that require frequent updates and adaptations, which maintenance model is most suitable?

Accepted Answer

Evolutionary model

Answer

Waterfall model

Answer

V-model

Answer

Spiral model

Question 48

Which statement about software maintenance is accurate?

Accepted Answer

It's an ongoing process that continues throughout the software's lifecycle.

Answer

It's typically concluded after the initial software development phase.

Answer

It's only required for highly complex software systems.

Question 49

Which type of software maintenance focuses on enhancing the performance or functionality of a system, typically adding new features?

Accepted Answer

Perfective Maintenance

Answer

Preventive Maintenance

Answer

Adaptive Maintenance

Answer

Corrective Maintenance

Question 50

What maintenance model emphasizes proactive measures to prevent future issues and improve system reliability?

Accepted Answer

Preventive Maintenance

Answer

Iterative Maintenance

Answer

Adaptive Maintenance

Answer

Corrective Maintenance

Question 51

A software system needs to be updated to comply with new regulations. Which type of maintenance is this?

Accepted Answer

Adaptive Maintenance

Answer

Corrective Maintenance

Answer

Preventive Maintenance

Answer

Perfective Maintenance

Question 52

Which of the following is NOT a major factor influencing the cost of software maintenance?

Accepted Answer

Number of users

Answer

Complexity of the software

Answer

Availability of documentation

Answer

Age of the software

Question 53

What is the primary purpose of a software maintenance plan?

Accepted Answer

To define the scope, schedule, and resources for maintenance activities.

Answer

To determine the best programming language for maintenance tasks.

Answer

To predict the lifespan of the software system.

Question 54

Which maintenance model emphasizes continuous improvement and incremental changes to the software?

Accepted Answer

Iterative Maintenance

Answer

Preventive Maintenance

Answer

Corrective Maintenance

Question 55

The process of identifying and fixing bugs or defects in a software system is known as:

Accepted Answer

Corrective Maintenance

Answer

Perfective Maintenance

Answer

Preventive Maintenance

Answer

Adaptive Maintenance

Question 56

Which of the following is NOT a benefit of proper software maintenance?

Accepted Answer

Increased initial development costs

Answer

Enhanced security

Answer

Increased system lifespan

Answer

Improved system performance

Question 57

A company decides to migrate their software to a new operating system. Which type of maintenance would this involve?

Accepted Answer

Adaptive Maintenance

Answer

Corrective Maintenance

Answer

Perfective Maintenance

Answer

Preventive Maintenance

Question 58

What is the most important factor to consider when determining the priority of a maintenance task?

Accepted Answer

Impact of the issue on system functionality

Answer

Time taken to fix the issue

Answer

Cost of fixing the issue

Answer

Ease of fixing the issue