What is a DNS? - Definition & Explanation - Video & Lesson

The Domain Name System (DNS) DNS Message Format ❑Length = 0 ⇒ End of names. Length < 64 Two msbs (most significant bits) = 11 ⇒ Pointer ❑Resource data contains serial (version) number of the zone, refresh interval, retry interval, expiry interval, mailbox of the responsible person, etc. Understanding How DNS Works - the Domain Name System Mar 26, 2019

Oct 04, 2018

Introduction to DNS DNS is a distributed database that contains mappings of DNS domain names to data. It is also a protocol for Transmission Control Protocol/Internet Protocol (TCP/IP) networks, defined by the Requests for Comments (RFCs) that pertain to DNS. DNS defines the following: • Mechanism for … Why the use of DNS "short names" should not be used as a

Application Layer Protocols (DNS, SMTP, POP, FTP, HTTP

What is a URL (Uniform Resource Locator)? URL (Uniform Resource Locator): A URL (Uniform Resource Locator), as the name suggests, provides a way to locate a resource on the web , the hypertext system that operates over the internet . The URL contains the name of the protocol to be used to access the resource and a resource name. The first part of a URL identifies what protocol to use. What is an IP address? Webopedia Definition