In JIRA, permission schemes are used to control access to various actions and features within the system. These schemes define who can perform which actions on different aspects of JIRA projects and issues.

In JIRA, Bulk Operations allow users to perform actions like editing multiple issues' fields at once, transitioning multiple issues through workflow states, moving multiple issues to another project, cloning issues, deleting multiple issues, and more.

In JIRA, a sub-task is used to break down a larger issue into smaller, more manageable tasks. Sub-tasks are essentially smaller units of work that contribute to the completion of the parent issue.

The correct option is Effort Remaining. In a Burndown Chart, the y-axis typically represents the amount of effort remaining to complete the work. This could be measured in various units such as story points, hours, or tasks. It provides a visual indication of the progress made towards completing the sprint backlog.

During Sprint Execution, the Scrum Team holds a Daily Stand-up meeting to discuss progress and identify any impediments. This meeting helps the team members to stay synchronized, identify any obstacles that may hinder progress, and collaborate on finding solutions to overcome them.

When restoring a JIRA instance from a backup, there are several methods available. XML import involves exporting data from one instance and importing it into another. Database import restores a JIRA instance by importing data directly into the database. Automated system restore relies on backup tools within JIRA to automate the restoration process. Manual file copy involves manually copying files and directories from a backup location to the appropriate directories in the JIRA instance.

Transition workflows in JIRA define the steps an issue moves through during its lifecycle. To change the status of an issue, you need to follow the appropriate transition, which in this case, is moving it from "In Progress" to "Resolved."

Issue Security Scheme allows restricting access to specific issues within a project. By configuring Issue Security Scheme, you can control who can view and edit certain issues based on their security level. This ensures that sensitive information is only accessible to authorized individuals.

Customizing a workflow in JIRA often involves defining validators to enforce business rules. Validators are used to ensure that certain conditions are met before an issue can transition from one status to another within the workflow.

In JIRA, to automatically assign incoming bug reports to the team lead responsible for the component, you would configure an automation rule triggered by Issue Assigned. This rule would ensure that whenever an issue is assigned, it triggers the automation to assign it to the respective team lead.