Networking Basics Module 8 – 11 Checkpoint Exam Answers
1. How many bits make up an IPv4 address?
2. Refer to the exhibit. The IP address settings of a host are shown. What is the host number of the IP address?
3. When IPv4 is configured for a computer on a network, what does the subnet mask identify?
- the part of the IP address that identifies the network*
- the device that the computer uses to access another network
- the dynamic subnetwork configuration
- the pool of addresses assigned within the network
4. True or False?
Every device on a network needs an IP address to identify itself and communicate on the network.
5. Refer to the exhibit. What is the network number of the LAN that is shown?
6. What are two reasons a network administrator might want to create subnets? (Choose two.)
- easier to implement security policies*
- reduction in number of routers needed
- reduction in number of switches needed
- simplifies network design
- improves network performance*
7. What is the purpose of the subnet mask in conjunction with an IP address?
- to uniquely identify a host on a network
- to mask the IP address to outsiders
- to determine the subnet to which the host belongs*
- to identify whether the address is public or private
8. A student is helping a friend with a home computer that can no longer access the Internet. Upon investigation, the student discovers that the computer has been assigned the IP address 169.254.100.88. What could cause a computer to get such an IP address?
- unreachable DHCP server*
- static IP addressing with incomplete information
- reduced computer power supply output
- interference from surrounding devices
9. Match each description with an appropriate IP address.
10. What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)
11. What is one factor increasing the adoption of IPv6 network addresses?
- IoT adds millions of network-ready sensors that need IP addresses.*
- Devices communicate faster using IPv6 addresses than when using IPv4.
- IPv4 will no longer be supported on mobile devices.
- IPv4 addresses cannot coexist with IPv6 addresses on the internet.
12. When the IETF began development of IPv6, what was the goal of implementing this technology?
- to increase the limiting 128 bits available in IPv4 to facilitate the growing Internet
- to provide more address space in the Internet Names Registry
- to relieve IPv4 address depletion*
- to make reading a 32-bit address easier
13. How many binary bits exist within an IPv6 address?
14. What is the valid most compressed format possible of the IPv6 address 2001:0DB8:0000:AB00:0000:0000:0000:1234?
15. Which shortened address is an accurate representation of the IPv6 address 2001:0db8:0000:0000:ab00:0000:0000:0000?
16. A DHCP-enabled client PC has just booted. During which two steps will the client PC use broadcast messages when communicating with a DHCP server? (Choose two.)
17. Which DHCPv4 message will a client send to accept an IPv4 address that is offered by a DHCP server?
- broadcast DHCPREQUEST*
- unicast DHCPREQUEST
- broadcast DHCPACK
- unicast DHCPACK
18. Which statement is true about DHCP operation?
- The DHCPDISCOVER message contains the IP address and subnet mask to be assigned, the IP address of the DNS server, and the IP address of the default gateway.
- If the client receives several DHCPOFFER messages from different servers, it sends a unicast DHCPREQUEST message to the server from which it chooses to obtain the IP information.
- When a device that is configured to use DHCP boots, the client broadcasts a DHCPDISCOVER message to identify any available DHCP servers on the network.*
- A client must wait for lease expiration before it sends another DHCPREQUEST message.
19. What is the destination IP address when an IPv4 host sends a DHCPDISCOVER message?
20. Which two types of devices are typically assigned static IP addresses? (Choose two.)
- web servers*