LPI
202-450 · Question #247
202-450 Question #247: Real Exam Question with Answer & Explanation
The correct answer is C. Some applications use the localhost interface to communicate with other applications.. See the full explanation below for the reasoning.
Question
When the default policy for the netfilter INPUT chain is set to DROP, why should a rule allowing traffic to localhost exist?
Options
- AAll traffic to localhost must always be allowed.
- BIt doesn't matter; netfilter never affects packets addressed to localhost.
- CSome applications use the localhost interface to communicate with other applications.
- Dsyslogd receives messages on localhost.
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