Which of the following allows an IP address to be referenced via an easily remembered...

 DNS stands for Domain Name System, which is a service that translates domain names into IP addresses. Domain names are easier to remember than IP addresses, and they can also change without affecting the users. For example, a SaaS application can have a domain name like www.saas.com, which can be resolved to different IP addresses depending on the location, availability, and performance of the servers. DNS allows users to access the SaaS application by typing the domain name in their browser, instead of memorizing the IP address. References: https://www.comptia.org/training/books/cloud-essentials-clo-002-study-guide, Chapter 2, page 43.