Hi, I need help with some questions about SAFe framework

What are two different types of Enabler Stories? (Choose two.)

Feature

Exploration

Defects

Infrastructure

Impediment

An Agile Release Train (ART) has implemented a completely automated Continuous Integration/Continuous Delivery (CI/CD) pipeline that can deploy code as it is checked into the source-code repository. How might a Product Owner (PO) adjust team events to take advantage of this capability and promote the flow of value?

• Identify Stories that are cleared for automatic delivery during Iteration Planning
• Release Stories that have been included in the team demo
• Review and accept Stories as they are completed
• Implement Feature toggles to control which Stories are released

Product Management has content authority for the Program Backlog including: the Vision, the Roadmap, driving the PI Objectives, and what else?

• Working with business stakeholders and Solution and System Architects to implement holistic technology across Value Streams?
• Managing risk, helping to ensure value delivery, and driving continuous improvement
• Accepting Stories and team increments
• Establishing Features and benefit hypotheses?

Which statement characterizes the perspectives of the definition of done (DoD)?

• Product Owners focus on Features while Product Managers focus on Stories
• Product Owners focus on the release while Product Managers focus on the team increment
• Product Owners focus on the Iteration while Product Managers focus on the release
• Product Owners focus on the Solution while Product Managers focus on the team increment

Which statement is true about estimating and forecasting the Portfolio Backlog?

• Refinement is necessary when estimating the effort needed to implement an Epic
• Feature estimates are rolled up into Epic estimates
• Which role is primarily responsible for working with business teams
• WSJF is used to assign Epics to Value Streams Epic forecasting is based on the cost estimate