Unit 9 Assignment 1 Essay

746 Words3 Pages
Baldeo Persaud
Unit 9 Assignment 1
Key Terms:
The Internet- The global network formed by interconnecting most of the networks on the planet, with each home and company network connecting to an Internet service provider (ISP), which in turn connects to other ISPs.
Internet edge- The part of the Internet between an ISP and the ISP customer, whether the customer is a company or organization with a large private TCP/IP network, or whether the customer is a single individual. point of presence- A term used by service providers, particularly for WAN or Internet service providers instead of traditional telcos, that refers to the building where the provider keeps its equipment. Access links that connect the customer device to the WAN
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host name- A name made up of alphabetic, numeric, and some special characters, used to identify a specific IP host. Host names that follow the convention for domain names in the DNS system use a hierarchical design, with periods separating parts of the name.
Domain Name System- The name of both a protocol and the system of actual DNS servers that exist in the world. In practice, DNS provides a way for the world to distribute the list of matching host name/IP address pair information, letting each company maintain its own naming information, but allowing the entire world to discover the IP address used by a particular host name, dynamically, using DNS protocols, so that any client can refer to a destination by name and send IP packets to that host.
Subdomain- With DNS naming terminology, this term refers to a part of a host name (or domain name). That smaller part can be the part that a company registers through IANA or some authorized agency to identify all hosts inside that company.
IPv4 address exhaustion- A term referring to the very real problem in the worldwide Internet, which first presented itself in the late 1980s, in which the world appeared to be running out of the available IPv4 address space. classless interdomain routing (CIDR)- One of the short-term solutions to the IPv4 address exhaustion problem that actually helped solve the problem for a much longer time frame. CIDR allows more flexibility in how many addresses IANA assigns to a

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