Advanced Placement (AP) Computer Science

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What organization is responsible for maintaining the DNS hierarchy and allocating IP addresses?

ICANN
IEEE
IETF
W3C

The correct answer is: ICANN

The organization responsible for maintaining the Domain Name System (DNS) hierarchy and allocating IP addresses is ICANN, which stands for the Internet Corporation for Assigned Names and Numbers. ICANN plays a crucial role in coordinating the unique identifiers of the internet, including domain names and IP address spaces. This organization oversees the distribution and management of IP addresses through various regional internet registries and also ensures a stable and secure internet by maintaining a global registry of domain names. By allocating resources and policy development related to DNS, ICANN helps in ensuring that the overall functioning of the internet is efficient and accessible to everyone. The other organizations mentioned serve different roles within the internet and technology fields. The IEEE (Institute of Electrical and Electronics Engineers) is primarily focused on electrical and electronic engineering standards, while the IETF (Internet Engineering Task Force) develops and promotes voluntary internet standards and protocols, particularly those related to the TCP/IP suite. The W3C (World Wide Web Consortium) is responsible for web standards and guidelines to ensure the long-term growth of the web, which is distinct from the responsibilities of ICANN concerning DNS and IP addressing.