1. Radiotherapy has the following effects on cancers

• Immunostimulant effect
• Immunosuppressive effect
• Both
• None

2. Ipilumimab is a

• PD L-1 inhibitor
• CTLA-4 inhbitor
• VEGF inhibitor
• EGFR inhibitor

3. Abscopal effect is

• Only local effect of tumor control by radiation.
• Systemic effect on metastatic disease only.
• Both local and systemic disease.
• Side effect of radiation on normal tissues.

4. Which of the following cells is part of acquired immunity?

• Neutrophils
• Dendritic cells
• Macrophages
• ATLs

5. Which mode of radiation fractionation is the most immune stimulant?

• Conventional radiation
• Hypofractionation
• Hyperfractionation
• Interrupted radiation