Which setting is used to determine the Domain Name System (DNS) settings on a client computer?

What type of DNS record maps host names to addresses?

This question requires that you evaluate the underlined text to determine if it is correct.
Each IPv4 address consists of a MAC address and data-link laver address.
Select the correct answer if the underlined text does not make the statement correct. Select "No change is needed" if the underlined text makes the statement correct.

Which of these addresses is a multicast address?

Your home computer is having problems accessing the Internet.
You suspect that your Internet router's DHCP service is not functioning, so you check your computer's IP address.
Which address indicates that your router's DHCP service is NOT functioning?