Question 7: Which of the following steps are part of configuring BGP in the provided lab? (Choose 3) Checkbox: (choose correct answers): [ ] Remove all BGP configuration from R21 and R22 [ ] Set up external BGP between R21 and R11 [ ] Advertise R22's loopback zero address in BGP [ ] Configure OSPF on R21 and R22 [ ] Set up external BGP between R22 and R11 Answer: Multiple Answers