Practice Quiz

LPI Certification / CompTIA Linux+ Practice Test

Category - LINUX

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Which of the following DNS records is used to map a host name to an IP address?
  1. NS
  2. PTR
  3. A
  4. MX
Explanation
Answer - C - The A type DNS record is used to map a host name to an IP address.

Key Takeaway: The A record, also known as a host record or a DNS host, is a record in the domain’s DNS zone file that makes the connection between the domain and its matching IP address. On a Linux machine, the host’s A record can be checked using the dig command.
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