CHAPTER 7

1: Which of the following is not a type of DNS server?

  1. Primary DNS server

  2. Secondary DNS server

  3. Backup DNS server

  4. Caching DNS server

A1: C. The secondary name server actually acts as backup name server. There is no specific backup name server term.
2: Which file determines whether a DNS server is primary, secondary, or caching?

  1. The /etc/named.conf file

  2. The named.rev file

  3. The named.hosts file

  4. The named.ca file

A2: A. Answers B, C, and D show zone data files.
3: Which UDP port number is used for DNS queries?

  1. 35

  2. 53

  3. 21

  4. 123

A3: B.
4: Which of the following files are used for DNS client configuration? Choose all that apply?

  1. /etc/inet/hosts

  2. /etc/resolv.conf

  3. /etc/nsswitch.conf

  4. /etc/named.hosts

A4: B, C. Answer A lists a text file that is used for host-to-IP ...

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