Assignment 3 –Networking Answers

Question 1

1. What are four IPv4 address settings that typically set on a host computer system?

Answer 1

Typical IPv4 values assigned to a host include unique IP, subnet mask, default gateway, and DNS address.

Question 2

2. What is an APIPA address?

Answer 2

An Automatic Private IPv4 Address is an address assigned automatically to a host to allow communication with other host machines on the same subnet. APIPA addresses are in the range of 169.254.0.1 to 169.254.255.255.

Question 3

3. In what situations would a host computer be assigned an APIPA address?

Answer 3

APIPA addresses are assigned to host machines when a DHCP server is not available and static address values have not been configured.

Question 4

4. What is the purpose of an IPv4 address of 127.0.0.1?

Answer 4

The IPv4 address of 127.0.0.1 is a local loopback address and is used to test the local link and protocol stack. It is also used for DNS servers to point to themselves for name resolution.

Question 5

5. What is the purpose of configuring NAT in a private network?

Answer 5

Network Address Translation is used to translate private network addresses to a single public network address. NAT is commonly used to conserve addresses by allowing private addresses to be used within an internal network but allow external communication to still occur by translating the private addresses into an available public address.

Question 6

8. Which command line utility would you use to test network connectivity?

Answer 6

Use PING to verify network connectivity.

Question 7

9. Which command line utility would you use if you were experiencing network connectivity issues using the command

Answer 7

Use IPCONFIG to check the network settings if PING is not working.

Question 8

10. What are the two components of an IPv6 address?

Answer 8

An IPv6 address has a network prefix and an interface ID.

Question 9

12. What is the loopback address used with IPv6?

Answer 9

The loopback address used with IPv6 is ::1.

Question 10

13. Describe how you would distinguish between the following IPv6 address types:

Answer 10

a. Global-Unicast – the first characters in the address are typically 2 or 3.
b. Unique-Local – the first characters in the address are typically FC or FD.
c. Link-Local – the first characters in the address are typically FE8.
d. Multicast – the first characters in the address are typically FF.

Question 11

14. What are two common techniques for translating IPv4 and IPv6 addresses?

Answer 11

Dual Stack – both IPv4 and IPv6 protocols are configured on the host machine.

Tunneling – the IPv6 packet is contained inside an IPv4 packet.

Question 12

15. Describe some general characteristics of Windows Firewall rules.

Answer 12

Windows Firewall rules are set to either inbound or outbound traffic to either allow or block traffic that matches the rule criteria. Typical rules can apply to a program, port, predefined, or custom rule.

Question 13

16. What is NIC Teaming?

Answer 13

NIC Teaming allows two or more network adapters to be combined and to work together as a team. It is typically used to increase bandwidth or provide redundancy.

Question 14

17. What benefits does NIC Teaming provide?

Answer 14

NIC Teaming is typically used to increase bandwidth or provide redundancy.

Question 15

18. How many NIC adapters are supported for NIC Teaming?

Answer 15

Windows Server supports up to 32 network adapters per team.

Question 16

19. What does a group of adapters configured with NIC Teaming appear to the operating system?

Answer 16

A group of adapters configured as a NIC team appear as one adapter with a single IP address.

Question 17

20. Describe the two modes that NIC Teaming can be configured on a Server.

Answer 17

Switch-dependent mode requires all network adapters to be connected to the same switch. They are typically configured as either static where the links forming the team are identified on both the switch and the server, or dynamic which used the Link Aggregation Control Protocol to identify the links.

Switch-independent mode has each adapter connected to a different switch and is used to provide fault tolerance. Both static and dynamic methods are available with this mode.