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A) Choose the correct word. (b) Give synonyms to the underlined words

  1. A. 1. Read and translate the following international words
  2. A. 1. Translate the following international words
  3. A. 2. Learn new words
  4. A. 2. Read new words
  5. A. Complete the sentences with the correct word. Use each word once only.
  6. A. Match the following words with their definitions.

A domain name (1) locates/specifies an organization or other entity on the Internet. For example, the domain name www.totalbaseball.com (1) locates/specifies an Internet address for "totalbaseball.com" at Internet (2) server/point and a particular (3) domain/host server named "www". The "com" part of the domain name reflects the purpose of the organization or entity (in this example, "commercial") and is called the top-level domain name. The "totalbaseball" part of the domain name defines the organization or entity and together with the top-level is called the second-level domain name. The second-level domain name maps to and can be thought of as the "readable" version of the Internet address.

A third level can be defined to (4) identify/show a particular host server at the Internet address. In our example, "www" is the name of the server that handles Internet (5) traffic/requests. (A second server might be called "www2".) A third level of domain name is not required. For example, the fully-qualified domain name could have been "totalbaseball.com" and the server assumed.

Subdomain levels can also be used. For example, you could have "www.nyyankees.totalbaseball.com". Together, "www.totalbaseball.com" constitutes a fully-qualified domain name.

Second-level domain names must be (6) common/unique on the Internet and registered with one of the ICANN-accredited registrars for the COM, NET, and ORG top-level domains. Where (7) appropriate/assumed, a top-level domain name can be geographic. (Currently, most non-U.S. domain names use a top-level domain name based on the country the server is in.)

On the Web, the domain name is that part of the Uniform Resource Locator (URL) that tells a domain name server using the domain name system (DNS) whether and where to (8) reroute/forward a request for a Web page. The domain name is mapped to an IP address (which represents a physical point on the Internet).

More than one domain name can be mapped to the same Internet address. This allows (9) multiple/special individuals, businesses, and organizations to have (10) unique/separate Internet identities while sharing the same Internet server.

It may be worth noting that the domain name system (11) contains/combines an even higher level of domain than the top-level domain. The highest level is the root domain, which would be represented by a single dot (just as in many hierarchical file systems, a root directory is represented by a "/" ) if it were ever used. If the dot for the root domain were shown in the URL, it would be to the right of the top-level domain name. However, the dot is (12) assumed/appropriate to be there, but never shown.


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