Information-Technology-Management Exam Dumps : WGU Information Technology Management QGC2

Comprehensive and Detailed Explanation From Exact Extract:

In cybersecurity, data integrity means that data has not been altered, tampered with, or corrupted during storage or transmission. Hashing is the primary method used to help ensure integrity. A hash function takes an input (such as a file or message) and produces a fixed-size hash value or message digest. If the data changes in any way, even slightly, the resulting hash value will also change, revealing that the data was modified.

Why D is correct: Hashing supports verification that data remains unchanged during transmission by comparing the hash calculated at the source with the hash calculated at the destination. Matching values indicate the data has not been altered.

Why the others are incorrect:

A. Encryption – Encryption protects confidentiality by making data unreadable to unauthorized parties, but by itself it does not prove that the data wasn’t modified.

B. Access control lists (ACLs) – ACLs regulate who can access what, but they do not verify whether data was changed during transmission.

C. Authentication – Authentication verifies who is accessing a system or resource (identity), not whether the data content remained intact in transit.

In the maintenance phase of the SDLC, the goal is to ensure the system continues to meet business needs by fixing defects, applying updates, and implementing enhancements. This phase ensures the system remains secure, reliable, and effective after deployment.

Option B: Gathering requirements occurs in the planning/analysis phase.

Option C: Unit testing is part of the testing phase, not maintenance.

Option D: Designing and deploying the architecture occurs in development and implementation phases.

Thus, the goal of the maintenance phase is to fix defects and update the software.

Definition of Project Scope:

Project scope describes the business needs, justification, requirements, and boundaries of a project.

It defines what is included and excluded in the project, ensuring all stakeholders have a shared understanding of the project's goals and deliverables.

Purpose of Defining Scope:

Prevents scope creep by clearly defining project boundaries.

Ensures the project aligns with business objectives and stakeholder expectations.

Incorrect Options Analysis:

B. Project Management: Refers to the overall process of planning, executing, and closing a project.

C. Project Milestone: Represents significant points in the project timeline, not boundaries or requirements.

D. Project Plan: A document detailing how the project will be executed, monitored, and controlled.

References and Documents of Information Technology Management:

PMBOK Guide (Project Management Institute).

ITIL Project Planning Framework (Axelos).