Certified Cloud Security Professional (CCSP) Practice Exam

What is the primary function of the Domain Name System (DNS)?

1. Creates logical divisions within a data center network

2. Helps establish an Information Security Management System (ISMS)

3. Maps domain names to IP addresses

4. Monitors network traffic for suspicious activity

The correct answer is: Maps domain names to IP addresses

The primary function of the Domain Name System (DNS) is to map domain names to IP addresses. This process allows users to access websites using human-readable names, like www.example.com, instead of having to remember complex numerical IP addresses associated with that site. When you enter a domain name in your browser, the DNS translates that name into the corresponding IP address so that your device can communicate with the correct server on the internet. This functionality is crucial for the accessibility and usability of the internet, as it simplifies the process of locating and connecting to resources online. Without DNS, navigating the web would require memorizing a multitude of numerical addresses, which would be cumbersome and inefficient. While the other options mention important concepts in networking and security, they do not pertain to the core function of DNS. Logical divisions in a data center network refer to network architecture, Information Security Management Systems are frameworks for managing security risks, and monitoring network traffic pertains to intrusion detection and response capabilities. However, none of these tasks involve the primary purpose of DNS as the system that connects domain names to their respective IP addresses.