Explanation: Unit testing is a testing technique that verifies the functionality and quality of individual units or components of software, such as modules, classes, functions, etc. Unit testing can help prevent issues with preexisting capabilities by detecting and fixing errors at an early stage of development, before they affect the integration and system testing. Unit testing can also ensure that new capabilities do not break or interfere with the existing ones, by checking the compatibility and dependencies of the units. Unit testing can be performed by developers using tools and frameworks that automate the process and generate reports.

Explanation: Work with the project scheduler to update the project timeline. The project manager should work with the project scheduler to update the project timeline after finding an unforeseen dependency on one of the critical project activities that will most likely cause a delay. The project scheduler is a person or a tool that helps plan, schedule, monitor, and control the project activities and resources. The project scheduler can help the project manager to assess the impact of the dependency on the project schedule and identify any possible ways to mitigate or resolve it. The project scheduler can also help to update the project timeline with the revised dates and durations of the project activities and communicate them to the relevant stakeholders.

Explanation: A business collaboration tool is a software that enables teams to communicate, share, and create together online. A business collaboration tool can help project teams across multiple time zones to overcome the challenges of distance, time differences, and cultural diversity. A business collaboration tool can provide features such as instant messaging, video conferencing, file sharing, document editing, project management, and more. A business collaboration tool can also integrate with other applications and platforms that the project team uses. A business collaboration tool can improve the efficiency, productivity, and quality of the project team’s work12.

Explanation: Application deployment typically involves making a software application available for use, often involving downtime or unavailability of the application. The description of the project manager notifying users about the application being unavailable for a certain period aligns with standard practices during deployment phases. The other options, such as rollback plans, validation checks, and maintenance window schedules, although important, do not directly indicate the action of making an application available for use, as described in the scenario.

Explanation: Pll stands for personally identifiable information, which is any data that can be used to identify a specific individual. Examples of Pll include name, address, phone number, email address, social security number, passport number, driver’s license number, etc. IP address and email address are both Pll because they can be used to trace the identity and location of a person. Medical record and test result values, name and year of birth, and x-ray and blood type are not Pll by themselves, but they can become Pll if they are combined with other data that can link them to a specific
individual. References = CompTIA Project+ Study Guide: Exam PK0-005, 3rd Edition, Chapter 10: Project Security, page 331. CompTIA Project+ Certification Exam Objectives, Domain 4: Project Security, Objective 4.1: Given a scenario, apply security best practices to a project, Sub-objective: Identify and classify Pll.

Explanation: When implementing an IT infrastructure change that takes risks into consideration, the project manager should develop a rollback plan. A rollback plan is a contingency plan that outlines the steps that need to be taken in case the change does not work as expected. It includes a plan to roll back the changes and restore the system to its previous state.
The project manager should develop a rollback plan when implementing an IT infrastructure change that takes risks into consideration. A rollback plan is a contingency plan that describes how to revert back to the previous state of the system in case of a failure or disruption during the change implementation. A rollback plan can help to minimize the impact of the change on the system performance and availability and ensure business continuity and data integrity.

Explanation: A risk register is used to document potential risks, including causes and impacts. This tool is essential for tracking and communicating project risks to stakeholders, as recommended by CompTIA Project+ for risk management.

Explanation: The Scrum team should break the stories into workable items that can be completed within one sprint, which is a time-boxed period of 7 to 30 days, during which the team delivers a potentially releasable product increment. Breaking the stories into smaller and more manageable items can help the team to estimate them more accurately, plan them more effectively, and deliver them more reliably. Breaking the stories also aligns with the agile principle of delivering working software frequently and satisfying the customer through early and continuous delivery of valuable software. The other options are not the best steps for the Scrum team to take next. Assigning more resources to complete similar stories in the future may not solve the problem of underestimation, and may introduce additional complexity and communication overhead. Extending the sprint duration when required with the approval of the product owner may compromise the consistency and predictability of the Scrum process, and may delay the feedback and validation from the stakeholders. Releasing the current progress into production and carrying over the rest of the code for the next sprint may result in an incomplete or unstable product increment, and may violate the definition of done, which is a shared understanding of the quality criteria that the product increment must meet.

Explanation: The system is lacking proper access controls if a third-party vendor was able to see secured project information in a recently implemented system that resulted in a fine for the organization. Access controls are security mechanisms that regulate who or what can view, use, or modify data or resources in a system or network. Access controls typically involve authentication and authorization processes that verify the identity and permissions of users or devices before granting them access. Access controls can help to protect data confidentiality, integrity, and availability and prevent unauthorized access, misuse, or theft12