An organisation uses the following coding system.<br/>Which type of coding system is this? A: Block B: Sequential C: Hierarchical D: Mnemonic

The main task of the Internet’s Domain Name System （DNS） is to： A: Translate port numbers to IP addresses B: Provide an authority for registering domain names C: Specify the standards for Internet domain names D: Translate mnemonic（记忆的） names to IP addresses