Exam 3V0-752 topic 1 question 44 discussion

A cloud pod architecture has been proposed for a customer with two data centers available in two cities 1700 Miles apart. The data centers are connected using
WAN links with sophisticated security requirements and firewall rules.
A WAN maintenance vendor has been contacted to add exceptions to meet cloud pod architecture requirements. The number of ports to be opened to enable datacenter to datacenter communication should stay at a minimum number.
Which two communication ports are required by the WAN maintenance vendor? (Choose two.)