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310-202 · Question #192

A user is unable to access a host using the telnet command on a new workstation. The user provided the following output: user1@w2100z% telnet sys42.abc.com sys42.abc.com: node name or service name…

The correct answer is D. The /etc/nsswitch.conf file is NOT configured to look at DNS for host information. See the full explanation below for the reasoning.

Question

A user is unable to access a host using the telnet command on a new workstation. The user provided the following output:

user1@w2100z% telnet sys42.abc.com sys42.abc.com: node name or service name not known user1@w2100z% getent hosts sys42.abc.com user1@w2100z% nslookup sys42.abc.com Server: dns.abc.com Address: 192.168.224.10#53 Name: sys42.abc.com Address: 192.168.222.15 user1@w2100z% grep sys42 /etc/hosts user1@w2100z% The user is able to access sys42 from an old workstation without issue. What is a possible explanation for this problem?

Options

  • AThe sys42 host is down.
  • BThe user did NOT use the rlogin command.
  • CThe telnet command is NOT in the user's $PATH variable.
  • DThe /etc/nsswitch.conf file is NOT configured to look at DNS for host information.

How the community answered

(50 responses)
  • A
    10% (5)
  • B
    4% (2)
  • C
    2% (1)
  • D
    84% (42)

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