... Requirements 4-1 7 2. In what domain would you find the PTR resource record for a computer with the IP address 10.11 .86 .4? a. 10.11 .86 .4.in-addr.arpa b. in-addr.arpa.4 .86 .11.10 c. 4 .86 .11.10.in-addr.arpa ... differ-ent top-level domain, or attempt to purchase the domain name from its current owner. If you are certain that you want to use the second-level domain name you have cho-sen, for example, ... the top-level domains. 3-4 6 Chapter 3 Planning Internet Connectivity Page Case Scenario Exercise 3-3 9 Based on the information in the Case Scenario Exercise, answer the following ques-tions...