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LX0-104 · Question #63

Which of the following tools used for DNS debugging, reports not only the response from the name server but also details about the query?

The correct answer is B. dig. The dig (Domain Information Groper) utility is a powerful command-line tool for querying DNS name servers and provides detailed information about the DNS query and its response. It is widely used by administrators for troubleshooting DNS issues due to its comprehensive output.

Networking Fundamentals

Question

Which of the following tools used for DNS debugging, reports not only the response from the name server but also details about the query?

Options

  • Adnsq
  • Bdig
  • Chostname
  • Ddnslookup
  • Ezoneinfo

How the community answered

(34 responses)
  • B
    88% (30)
  • C
    6% (2)
  • D
    3% (1)
  • E
    3% (1)

Why each option

The dig (Domain Information Groper) utility is a powerful command-line tool for querying DNS name servers and provides detailed information about the DNS query and its response. It is widely used by administrators for troubleshooting DNS issues due to its comprehensive output.

Adnsq

dnsq is not a standard or widely recognized DNS debugging tool that provides comprehensive query details.

BdigCorrect

The dig command is specifically designed for querying DNS name servers and provides extensive output, including the question section, answer section, authority section, and additional section, along with various flags and timing statistics, making it ideal for debugging.

Chostname

hostname is used to display or set the system's hostname, not for querying DNS or debugging.

Ddnslookup

dnslookup is not a standard Linux command; nslookup exists but is generally considered deprecated for scripting compared to dig and provides less detailed output.

Ezoneinfo

zoneinfo is typically related to timezone data files, not DNS debugging.

Concept tested: DNS query and debugging tools

Source: https://linux.die.net/man/1/dig

Topics

#DNS debugging#dig command#name resolution

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