Describe the following terms that are used in the Domain Name System.

Top-level domain


A top level domain lies beneath the root DNS domain and managed by the Internet name registration authority. There are three types of top-level domains:
? Organizational domains. These are named by using a 3-character code that indicates the primary function or activity of the organizations contained within the DNS domain.
? Geographical domains. These are named by using the 2-character country/region
codes established by the International Standards Organization (ISO) 3166.
? Reverse domains. This is a special domain, named in-addr.arpa, that is used for IP
address-to-name mappings (referred to as reverse lookup)

Computer Science & Information Technology

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A(n) ___________________ is a series of instructions that can be grouped together as a single command.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology

When you do not know when you write the program whether the loop will be executed two times, 200 times, or not at all you should use a definite loop.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

Match the following terms to their meanings:

I. A public meeting place on the Internet for open discussion A. Directory Service II. Added to Windows Mailby default B. SMTP III. A list of names and information about every user and C. Microsoft Communities user on a network IV. A computer connected to the Internet that directs D. newsgroup messages to their destination V. A common standard for sending e-mail across the Internet E. e-mail server

Computer Science & Information Technology

Typing bare instead of bear is an example of a word usage error and will have a blue underline

Indicate whether the statement is true or false

Computer Science & Information Technology