1. How do you configure RSVP-TE in Cisco?
2. How do you configure IPsec when both sites have the same network?
3. Given two line segments with coordinates a1, b1 and a2, b2, determine if they intersect.
4. Given a sorted array of integers, search for a specific target value using the binary search algorithm. Return the index of the target if found, otherwise return -1.