1. How large are IPv4 addresses?
* 32 bits

2. Which part of an IP address identifies a specific device on a network?
* host portion

3. Given a host with the IP address 172.32.65.13 and a default subnet mask, to which network does the host belong?
* 172.32.0.0

4. Refer to the graphic. A user at the workstation cannot connect to the server. All cables have been tested and are working and all devices have IP addressing. However, the user cannot ping the server. What is causing the problem?
* The workstation and server are on different logical networks.

5. Which default subnet mask provides the most host bits?
* 255.0.0.0

6. Assuming a default mask, which portion of the IP address 175.124.35.4 represents the host?
* 35.4

7. How many bits are available for Class B host IP addresses using a default subnet mask?
* 16

8. How many usable hosts are available given a Class C IP address with the default subnet mask?
* 254

9. Which of the following are private IP addresses? (Choose three.)
* 10.1.1.1
* 172.16.4.4
* 192.168.5.5

10. What is the destination MAC address in a multicast Ethernet frame?
* the MAC address of the sending host
* the MAC address of the destination host
* an address that begins with 01-00-5E in hexadecimal
* a 48-bit hexadecimal address expressed as FF-FF-FF-FF-FF-FF

11. What destination IP address is used in a unicast packet?
* a specific host
* a group of hosts
* the default gateway
* the network broadcast address

12. Yvonne is talking to her friend on the phone. What type of message is this?
* broadcast
* simulcast
* multicast
* unicast

13. What information must be included within a unicast message for it to be delivered on an Ethernet network?
MAC and IP addresses that correspond to a specific destination host

14. Which three statements describe a DHCP Discover message? (Choose three.)
* The destination IP address is 255.255.255.255.
* The message comes from a client seeking an IP address.
* All hosts receive the message, but only a DHCP server replies.

15. A PC obtains its IP address from a DHCP server. If the PC is taken off the network for repair, what happens to the IP address configuration?
* The address is returned to the pool for reuse when the lease expires.

16. Which type of server dynamically assigns an IP address to a host?
* DHCP

17. What is one of the purposes of NAT?
* prevents external users from detecting the IP addresses used on a network

18. Refer to the graphic. A host connects to a Linksys integrated router that is also a DHCP server and receives an IP address from it. Which address does the host need to access the ISP and the Internet?
* internal IP address of the integrated router that connects to the local network

19. Which statement is true concerning private IP addresses?
* solves the issue of a finite number of available public IP addresses

20. Refer to the graphic. NAT and DHCP are installed on the Linksys integrated router. Which IP address is most likely to be assigned to the local computer, Host1?
* 10.0.0.17

21. Which two statements describe packets that are sent through a Linksys integrated router using NAT? (Choose two.)
* Packets that are sent to a destination outside the local network need to be translated.
* Packets that are sent between hosts on the same local network do not need to be translated.