Web Science/Part1: Foundations of the web/Domain Name System/Terminology/quiz

{map the following -++ google.com -++ en.wikiversity.org -++ www.studywebscience.org +++ org --- studywebscience --- http://en.wikiversity.org --- http://en.wikiversity.org/wiki/Topic:Web_Science
 * type="[]"}
 * top level domain|domain|subdomain

{True or false? +- Every domain is a subdomain of its parent +- Every subdomain can also act as a domain -+ Every host has a domain -+ Every domain resolves to a host +- Domains can have multiple subdomains -+ Domains can have multiple top level domains
 * type="[]"}
 * true|false
 * hosts on the internet do not have to have a domain name
 * top level domains do not resolve to hosts but also other domains do not have to resolve to a host.
 * en.wikiversity.org and de.wikiversity.org are both valid subdomains of wikiversity.org
 * this is impossible since the domain name system is a tree like data structure so every entry can just have one parent.

{Given the tree which represents the domain name system. Which of the following best describes what a domain is?} - A domain is a node + A domain is a subtree - A path from the root to a certain node - A path from a certain node to the root - A domain is a leaf - A domain is an edge

{Given the tree which represents the domain name system. Which of the following best describes what a fully qualified domain name is?} - A domain is a node - A domain is a subtree - A path from the root to a certain node + A path from a certain node to the root - A domain is a leaf - A domain is an edge