Intermediate Linux & Shell Scripting
Q77 / 100

What is the purpose of "/etc/hosts" and how does it interact with DNS lookups?

Correct! Well done.

Incorrect.

The correct answer is A) "/etc/hosts" is a local file that maps hostnames to IP addresses and is typically checked before querying DNS servers, allowing administrators to override DNS resolution for specific hosts or define local-only hostnames

A

Correct Answer

"/etc/hosts" is a local file that maps hostnames to IP addresses and is typically checked before querying DNS servers, allowing administrators to override DNS resolution for specific hosts or define local-only hostnames

Explanation

Entries in "/etc/hosts" (e.g. "127.0.0.1 myapp.local") let developers map custom hostnames to specific IPs for local testing without needing actual DNS records, and (depending on nsswitch.conf ordering) usually take precedence over DNS.

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77/100