COMPSCI 92L Lecture Notes - Lecture 10: Javascript, Dark Web, Hypertext Transfer Protocol

• School: Duke University
• Department: Computer Science
• Course: COMPSCI 92L
• Professor: Astrachan

Document Summary

Check each of the statements below that is true about dns (domain name system) It provides a service for mapping domain names, like www. duke. edu, to ip addresses like. Dns works in a hierarchal way -- trying to find information close to the client, then somewhat removed, then eventually at a root dns server. As ipv6 continues to replace/supplant ipv4 the domain name system will need to be changed because 128-bit addresses require different handling than 32 bit addresses. Security concerns have led to evolutionary changes in dns to ensure it works in an increasingly insecure internet. Ip is often used with tcp (transmission control protocol) to ensure reliable delivery of information given an unreliable internet. Http is currently a protocol managed by the w3c, ip is managed by the ietf. Check each statement that is true about cookies as used on the world wide web.