Customers are unable to send emails to a company's domain When searching the naming service, they receive the following error message: Which of the following is a valid reason for this error?

The correct answer is B. The queried DNS server is not responding. The error “connection timed out; no servers could be reached” indicates that the specified DNS server (ns1.mydomain.com) did not respond to the query. This points to a DNS server availability or connectivity issue, not a problem with the command syntax or record existence.

Troubleshooting and Diagnostics

Question

Customers are unable to send emails to a company’s domain When searching the naming service, they receive the following error message:

Which of the following is a valid reason for this error?

Options

AThe root name servers were configured improperly.
BThe queried DNS server is not responding.
CThe dig command fails because of an extra mx at the end.
DThe name entry does not exist.

How the community answered

(44 responses)

A
5% (2)
B
70% (31)
C
7% (3)
D
18% (8)

Explanation

The error “connection timed out; no servers could be reached” indicates that the specified DNS server (ns1.mydomain.com) did not respond to the query. This points to a DNS server availability or connectivity issue, not a problem with the command syntax or record existence.

Topics

#DNS#MX records#dig command#name resolution

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