Linux Dns Server Quiz Questions And Answers

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Linux Dns Server Quiz Questions And Answers - Quiz

You ought to take this Linux DNS server quiz with informative questions and answers if you are a person who is interested in technology and technical stuff! This quiz can refresh your memory on DNS servers based on Linux and maybe even help you learn something new about the whole process. Don't forget to tell your friends about this amazing quiz and share it with all of them so they can take it to find out exactly how well they know Linux DNS servers! All the best!


Questions and Answers
  • 1. 

    What is the name of configuration file that could resolve host names to IP Address locally?

    • A.

      /etc/host

    • B.

      /etc/hosts

    • C.

      /etc/host.conf

    • D.

      /etc/hostname

    Correct Answer
    B. /etc/hosts
    Explanation
    The correct answer is /etc/hosts. The /etc/hosts file is a configuration file on Unix-like operating systems that maps hostnames to IP addresses. It is used to resolve hostnames locally without the need for a DNS server. This file contains a list of IP addresses and corresponding hostnames, allowing the system to translate a hostname into its associated IP address.

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  • 2. 

    What is the name of DNS client configuration file?

    • A.

      /etc/resolv

    • B.

      /etc/hostname

    • C.

      /etc/resolv.conf

    • D.

      /etc/hostname.conf

    Correct Answer
    C. /etc/resolv.conf
    Explanation
    The correct answer is /etc/resolv.conf. This file is the DNS client configuration file in Linux systems. It contains the information about the DNS servers that the system should use for name resolution. The file is typically used by the resolver library to determine the IP address associated with a domain name. By configuring this file, users can specify the DNS servers they want to use for name resolution on their system.

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  • 3. 

    What is the host name part of http://www.google.com?

    • A.

      Http

    • B.

      Www

    • C.

      Google

    • D.

      Com

    Correct Answer
    B. Www
    Explanation
    The host name part of a URL is the section that identifies the specific server or website within the domain. In this case, "www" is the host name part of the URL "http://www.google.com". It indicates that the website or server being accessed is located at the subdomain "www" within the "google.com" domain.

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  • 4. 

    How many domains in http://www.google.com?

    • A.

      1

    • B.

      2

    • C.

      3

    • D.

      4

    Correct Answer
    C. 3
    Explanation
    The given correct answer is 3. This is because the URL "http://www.google.com" consists of three domains: "http", "www", and "google.com". The first domain indicates the protocol used (HTTP), the second domain is the subdomain (www), and the third domain is the main domain (google.com).

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  • 5. 

    What is the name of the file, where we define our domain (in Linux Ubuntu)?

    • A.

      /etc/bind/named

    • B.

      /etc/bind/named.conf

    • C.

      /etc/bind/named.conf.local

    • D.

      /etc/bind/named.conf.options

    Correct Answer
    C. /etc/bind/named.conf.local
    Explanation
    The correct answer is /etc/bind/named.conf.local. In Linux Ubuntu, the file named.conf.local is used to define the domain. This file is located in the /etc/bind/ directory. It is specifically used for configuring local domain names and their associated zone files.

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  • 6. 

    What is the name of the file, where we define our parent domain, or domain above us (in Linux Ubuntu)?

    • A.

      /etc/bind/named

    • B.

      /etc/bind/named.conf

    • C.

      /etc/bind/named.conf.local

    • D.

      /etc/bind/named.conf.options

    Correct Answer
    D. /etc/bind/named.conf.options
    Explanation
    The correct answer is /etc/bind/named.conf.options. This file is used in Linux Ubuntu to define the parent domain or the domain above us. It is a configuration file for the BIND (Berkeley Internet Name Domain) DNS server, which is responsible for translating domain names into IP addresses. The named.conf.options file contains various options and settings for the DNS server, including the definition of the parent domain.

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  • 7. 

    What is the setting to tell the secondary DNS, WHEN to contact and update configuration files in primary DNS?

    • A.

      Serial

    • B.

      Refresh

    • C.

      Retry

    • D.

      Expiry

    Correct Answer
    B. Refresh
    Explanation
    The "refresh" setting in the secondary DNS determines when it should contact and update configuration files in the primary DNS. This setting specifies the interval at which the secondary DNS should check for updates in the primary DNS. When the refresh interval expires, the secondary DNS will contact the primary DNS to retrieve any updated configuration files and ensure that it has the most recent information.

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  • 8. 

    What is the setting to tell the secondary DNS, that there was a change in primary DNS that has to be updated?

    • A.

      Serial

    • B.

      Refresh

    • C.

      Retry

    • D.

      Expiry

    Correct Answer
    A. Serial
    Explanation
    The "serial" setting is used to tell the secondary DNS server that there has been a change in the primary DNS server and that it needs to update its records. This setting is typically a numeric value that is incremented each time there is a change in the zone file on the primary DNS server. By comparing the serial number on the primary and secondary servers, the secondary server can determine if it needs to update its records.

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  • 9. 

    What is the keyword used to define a Mail Server?

    • A.

      CNAME

    • B.

      NS

    • C.

      MX

    • D.

      PTR

    Correct Answer
    C. MX
    Explanation
    The keyword used to define a Mail Server is "MX". MX stands for Mail Exchanger and it is a type of DNS record that specifies the mail server responsible for accepting email messages on behalf of a specific domain. When someone sends an email to a domain, the MX record helps in routing the email to the correct mail server.

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  • 10. 

    What is the keyword used to define a domain alias?

    • A.

      CNAME

    • B.

      NS

    • C.

      MX

    • D.

      PTR

    Correct Answer
    A. CNAME
    Explanation
    A CNAME (Canonical Name) is the keyword used to define a domain alias. It is a type of DNS record that allows one domain name to be associated with another domain name. This is commonly used when a website wants to have multiple domain names pointing to the same website content. When a user enters the alias domain name in their browser, the DNS system will resolve the CNAME record and redirect the user to the original domain name.

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