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1. How does the DNS lookup work? DNS acts as an address book. It translates human-readable domain names (google.com) to machine-readable IP addresses (142.251.46.238). To achieve better scalability, the DNS servers are organized in a hierarchical tree structure. There are 3 basic levels of DNS servers: Root name server (.). It stores the IP addresses of Top Level Domain (TLD) name servers. There are 13 logical root name servers globally. TLD name server. It stores the IP addresses of authorita...