Java Programming and Technical Programming Technical

Q. What is Domain Naming Service(DNS)?

A. It is very difficult to remember a set of numbers(IP address) to connect to the Internet. The Domain Naming Service(DNS) is used to overcome this problem. It maps one particular IP address to a string of characters. For example, www. mascom. com implies com is the domain name reserved for US commercial sites, moscom is the name of the company and www is the name of the specific computer, which is mascom's server

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Java Other Question
Q. What is the difference between this() and super()?

A. This() can be used to invoke a constructor of the same class whereas super() can be used to invoke a super class constructor. Q. What is URL?

A. URL stands for Uniform Resource Locator and it points to resource files on the Internet