Given below is a typical URL that identifies a web page: http://book.com/author/index.html
The hostname 'book.com' is converted into an IP address by a ____________ server that has a database of matching names and addresses and is queried for the address.
http://book.com/author/index.html

Correct option is C

DNS (Domain Name System): Converts human-readable domain names (e.g., book.com) into machine-readable IP addresses (e.g., 192.0.2.1).
Information Booster:
1. Role of DNS:
· Acts as the internet's phonebook.
· Resolves domain names into IP addresses.
2. Other Options:
· SMTP: Protocol for sending emails.
· FTP: Protocol for file transfers.
· HTTP: Protocol for transmitting web pages.
Additional Knowledge:
· DNS works through recursive and authoritative servers.
· It uses caching to improve query response times.