Permission schemes in JIRA allow project administrators to control access to various project actions, such as creating, editing, or transitioning issues. By assigning appropriate permission schemes, administrators can ensure that only authorized users can perform specific actions within the project.

In Agile development, breaking down large user stories into smaller ones is essential for better estimation, implementation, and tracking. When a user story is too complex to estimate accurately, it should be broken down into smaller, more manageable pieces. This allows the team to understand and deliver value incrementally, reducing risks associated with uncertainties and facilitating collaboration among team members.

The primary purpose of a product backlog in Agile is to prioritize and manage requirements. It serves as a dynamic document that captures all the features, enhancements, and fixes that need to be implemented in the product. Prioritization ensures that the team works on the most valuable items first.

Following consistent naming conventions for JIRA issues is crucial because it aids in searchability and organization. Consistent naming makes it easier for team members to locate specific issues quickly, fosters better communication, and enhances overall project management efficiency.

In JIRA, "Edit" allows users to modify the details of an issue, such as the summary, description, assignee, etc., without changing its workflow status. On the other hand, "Transition" is used to change the workflow status of an issue, moving it from one status to another in the workflow. This typically represents progress in the issue's lifecycle, such as from "Open" to "In Progress" or from "In Progress" to "Resolved".

JIRA workflows utilize Post Functions to execute actions automatically after transitions. These functions can range from sending notifications to updating fields or triggering external processes, enhancing workflow automation and streamlining issue management processes.

Velocity, in the context of Agile reporting, represents the amount of work a team can complete in a sprint based on historical data. It helps teams estimate their capacity and plan future sprints effectively. In JIRA, velocity is calculated by summing up the estimation points of all completed user stories or tasks in a sprint.

Option 1: "Sub-tasks" is the correct option. When you have a parent issue representing a feature in JIRA and need to track the development tasks required to complete that feature, you create sub-tasks. Sub-tasks break down the parent issue into smaller, manageable tasks, each representing a specific aspect of the feature development. These sub-tasks are then linked to the parent issue, allowing for hierarchical organization and clear visibility into the progress of individual tasks contributing to the completion of the feature.

The Sprint Review meeting in Agile Scrum serves the purpose of showcasing the completed work to stakeholders for feedback and validation. It allows stakeholders to provide input, which can influence future product increments. This transparency promotes collaboration and ensures alignment with stakeholders' expectations.

In JIRA, using descriptive titles that clearly indicate the issue's content is a recommended approach. This helps users quickly understand the nature of the issue without having to delve into the details. Clear and concise titles facilitate efficient communication and collaboration within the team.