How can you check the DNS server being used in Linux?Select one:a.Type "cat /etc/resolv.conf"b.Type "ping -dns"c.Type "ipconfig -dns"d.Type "ifconfig -dns"

To check the DNS server being used in Linux, the correct option is:

a. Type "cat /etc/resolv.conf"

Explanation:

1. Understanding /etc/resolv.conf: This file contains information that is used by the resolver to determine how to convert domain names into IP addresses. It typically lists the DNS servers the system will attempt to use for lookup.

2. Command Breakdown:

   • Executing cat /etc/resolv.conf will display the contents of the file, where you will see entries like nameserver 8.8.8.8, indicating the DNS server addresses currently being utilized.

3. Incorrect Options:

   • b. Type "ping -dns": This command does not exist in standard Linux distributions.
   • c. Type "ipconfig -dns": The ipconfig command is used in Windows, not Linux.
   • d. Type "ifconfig -dns": The ifconfig command is used to configure network interfaces but does not have a -dns option.

Final Answer

The correct option is a. Type "cat /etc/resolv.conf" to check the DNS server being used in Linux.