It is only with the arrival of 3G and now 4G networks combined with smartphones that broadband mobile Internet is now beginning to take off in LDCs. The growth in mobile data is putting pressure on the need for resilient core Internet infrastructure. As noted at the beginning of this chapter, three critical components are essential for resiliency and ensuring the Internet stays up and running in the event that international connectivity is disrupted: a root name server, a ccTLD name server and an IXP.