Matt

Chapter 4 Solutions

Review Questions

1. Which of the following occurs at the Network Access layer of the TCP/IP model?

a. Routing

b. Address translation

c. Password authentication

d. Signaling

2. What field in an IPv4 packet can be used to indicate that a packet should be routed before any other packets?

a. Flags field

b. Identification field

c. Differentiated Services field

d. Fragment offset field

3. What happens to an IPv6 packet when its hop limit reaches 0?

a. It is retransmitted by the connectivity device that last received it.

b. It is bounced back to its source node.

c. It is discarded.

d. It is assigned a new hop limit.

4. Before you connect to your office network, you want to verify that your workstation’s TCP/IPv6 protocols are functioning. Which of the following addresses do you ping?

a. ::1

b. FE08::0

c. 0::0

d. 1::1

5. What is the function of ARP?

a. To acknowledge that a data frame was received

b. To obtain the IP address of a host, then map that IP address to a registered domain name

c. To measure the number of dropped packets in a single transmission

d. To obtain the MAC address of a host, and then map that MAC address to the host's IP address

6. Which of the following applications would be best suited to multicasting?

a. Sending e-mail to your coworker

b. Participating in a company-wide video conference via the Internet

c. Updating an inventory database

d. Logging on to a host over the Internet

7. Suppose you have a workstation that uses the IP address 203.12.176.55 on a traditional IPv4 network. To what network class does the workstation belong?

a. A

b. B

c. C

d. D

8. How many bytes are used for an IPv4 address?

a. 4

b. 16

c. 31

d. 64

9. Suppose your computer's IP address is 155.61.9.188, and your network administrator has not subnetted the network to which you're connected. What is your computer's subnet mask?

a. 255.0.0.0

b. 255.255.0.0

c....