Questions

Here’s a quick quiz to outline and test some of the essential concepts covered in this chapter:

1. How does the OSI model compare to the TCP/IP model?

   Hint: Figure 7.2 could be of help.

2. Think of a couple of TCP/IP protocols and try to see where and how they operate in some of the network administration tasks or applications you are familiar with.
3. At what networking layer does the HTTP protocol operate? How about DNS?

   Hint: Both operate on the same layer.

4. What is the network class for IP address 192.168.0.1?

   Hint: Refer to Figure 7.5.

5. What is the network prefix that corresponds to network mask 255.255.0.0?

   Hint: Check out Figure 7.5 again.

6. How do you configure a static IP address using the nmcli utility?

   Hint: Use connection modify.

7. How do you change the hostname of a Linux machine?

   Hint: Use the hostnamectl utility.

8. What is the difference between the POP3 and IMAP email protocols?
9. How does SSH host-based authentication differ from user...