DNS Test

What is the most commonly used program in Linux-based systems to configure a DNS server?

• Postfix

• MySQL

• Apache

• BIND

What command is used to install the DNS server on an Ubuntu server?

• sudo apt-get install mysql

• sudo apt-get install apache

• sudo apt-get install dns

• sudo apt-get install bind9

What file should be edited on an Ubuntu server to indicate that it is a DNS server and to search by default in its domain?

• /etc/bind/db.smr2.com

• /etc/resolv.conf

• /etc/bind/db.local

• /etc/bind/named.conf

What is the equivalent tool in Linux to nslookup in Windows?

• ping

• whois

• host

• dig

What command is used to perform a reverse resolution on an Ubuntu server?

• nslookup domain name

• dig -x server IP

• nslookup server IP

• dig your domain name

What option should be added to the named.conf.options file in Bind to configure forwarding?

• also-notify {10.0.2.33;};

• allow-transfer {10.0.2.33;};

• allow-recursion {none;};

• forwarders {80.58.0.33; 80.58.32.97;};

What command is used to restart the DNS service on an Ubuntu server?

• /etc/init.d/bind9 start

• /etc/init.d/bind9 restart

• service bind9 stop

• service bind9 start

What command is used to check the syntax of a zone file on an Ubuntu server?

• What command is used to check the syntax of a zone file on an Ubuntu server?

• named-checkconf

• nslookup server IP

• dig -x server IP

What command is used to make a query to a DNS server in Linux?

• What command is used to make a query to a DNS server in Linux?

• nslookup IP of the server

• nslookup domain name

• dig your domain name

What command is used to verify the syntax of the named.conf.local file in Bind?

• What command is used to check the syntax of the named.conf.local file in Bind?

• named-checkzone smr2.com /etc/bind/db.smr2.com

• named-checkconf

• nslookup server IP