Q. A registrar first verifies that the requested domain name is unique and then enters it into the DNS

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Q. In Domain Name System (DNS), a contiguous part of the entire tree is called

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Q. To register, the organization needs to give the name ofits server and the IP address of

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Q. A server whose zone consists of the whole tree is called

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Q. A root server's zone is the entire

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Q. If the server has the information, it satisfies the

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Q. Domain Name System (DNS), allows domains to be divided further into

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Q. A DNS client/server program can support an e-mail program to find the IP address of an

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Q. Mapping a name to an address or an address to a name is called

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Q. In DNS meaagaes a section consisting of one or more resource records is called

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Q. To provide security and prevent unauthorized changes in the DNS records an authentication mechanism is used, known as

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Q. A primary server loads all information from the

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Q. In Domain Name Space (DNS), when the Internet was small, mapping was done by using a

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Q. In Domain Name Space, the null suffix defines

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Q. The information contained in the domain name space must be

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Q. In Domain Name Space, if a label is not terminated by a null string, it is called a

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Q. Each name space is made of several parts in

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Q. The main disadvantage of a flat name space is that it cannot be used in a large

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Q. A root server is a server whose zone consists of the

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Q. In Domain Name, a full domain name is a sequence of labels separated by

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