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Indicate whether the statement is true or false.
1. Clients have static IP addresses because their DNS entries must stay consistent.
a.
True
b.
False
2. DHCP delivers the necessary configuration information to clients to tell them the addresses of their IP
gateways.
a.
True
b.
False
3. Clients ordinarily attempt to renew existing releases by default, but you can instruct a DHCP server to deny
lease renewals, or even cancel leases, when necessary.
a.
True
b.
False
4. DHCP can exclude individual addresses or address ranges from dynamic allocation to client machines.
a.
True
b.
False
5. The DHCP specification, RFC 2131, defines the default value for T1 as:
0.95 * duration_of_lease
a.
True
b.
False
Indicate the answer choice that best completes the statement or answers the question.
6. In a DHCP Discover packet, what is the client identifier field based on?
a.
Client GUID
b.
Computer name
c.
IP address
d.
MAC address
7. Which of the following is enabled at a client machine when you select the Obtain an IP address automatically
option in the Internet Protocol (TCP/IP) Properties window?
a.
DHCP relay agent
b.
DHCP server
c.
DHCP client
d.
DHCP router
8. Which of the following types of DHCP software intercepts address requests on a local cable segment and
repackage those requests as a unicast to one or more DHCP servers?
a.
relay agent
b.
cluster
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c.
client
d.
router
9. Which of the following fields contains the address being offered by the DHCP server?
a.
Your IP Address
b.
Hops
c.
Flags
d.
Transaction ID Number
10. Which of the following terms is defined as the time that the client begins to broadcast a renewal request for
an extended lease time from another DHCP server.
a.
R1
b.
T2
c.
T1
d.
R2
11. When a DHCP client boots up, which of the following will it perform in order to enable it to communicate
on the network.
a.
Standard Address Discovery
b.
Standard Client Discovery
c.
Standard Router Discovery
d.
Standard Packet Discovery
12. Which of the following DHCP processes relies heavily on broadcasts, but most routers do not forward
broadcasts?
a.
discovery
b.
lease
c.
request
d.
boot
13. Which of the following fields contains a random number selected by the client and is used to match requests
and responses between the client and server?
a.
Your IP Address
b.
Hops
c.
Flags
d.
Transaction ID Number
14. Which of the following use dynamic IP addresses because they initiate the connections to the servers, and
the servers simply respond to the clients based on the clients' IP addresses?
a.
Clients
b.
Routers
c.
IP gateways
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d.
Servers
15. If no DHCP server is present in some broadcast domain, which of the following special pieces of software
must be present in that broadcast domain?
a.
broadcast bit
b.
address pool
c.
DHCP relay agent
d.
address scope
16. Which of the following is sent from the server to the client to indicate the completion of the four-packet
DHCP Discovery process?
a.
Acknowledgment packet
b.
Offer packet
c.
Request packet
d.
Discover packet
17. Which of the following terms is defined as the time that the client tries to renew its network address by
contacting the DHCP server that sent the original address to the client?
a.
R1
b.
T2
c.
T1
d.
R2
18. Which of the following fields is set to 0 by the client and may be used by relay agents as they assist a client
in obtaining an IP address and/or configuration information?
a.
Hardware field
b.
Hops field
c.
Flags field
d.
Transaction ID Number field
19. Which of the following have static IP addresses because their addresses are key parts of any subnet's IP
configuration?
a.
Clients
b.
Relay agents
c.
Broadcast bits
d.
Routers
20. DHCP servers can manage one or more ranges of IP addresses, each of which may be called what?
a.
address pool
b.
relay agent
c.
release
d.
local agent
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21. With which of the following devices may the administrator explicitly assigns an IP address manually by
associating a client's hardware address with a specific IP address to be leased to that client?
a.
dynamic address lease
b.
manual address lease
c.
IP gateway
d.
discovery broadcast
22. Which of the following is used to assign addresses to clients or other machines when fixed IP addresses are
not required?
a.
dynamic address lease
b.
manual address lease
c.
IP gateway
d.
discovery broadcast
23. Which of the following DHCP creations does Microsoft Windows Server 2012 R2 support?
a.
VoIP
b.
class
c.
superscope
d.
router
24. Which of the following includes the IP address that is offered to the client and, sometimes, answers to the
requested options in the DHCP Discover packet.
a.
Acknowledgment packet
b.
Offer packet
c.
Request packet
d.
Discover packet
25. Which of the following is a service that provides a way for a client computer that lacks an IP address
assignment to request one from any listening DHCP server - without the help of an administrator?
a.
TCP/IP
b.
DHCP
c.
BOOTP
d.
PING
26. What was developed in the 1970s as a way to provide sufficient network access so diskless workstations
could access startup information across the network, instead of reading it from a local disk drive?
a.
TCP/IP
b.
WINS
c.
DHCP
d.
BOOTP
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Enter the appropriate word(s) to complete the statement.
27. The DHCP ___________ packet is sent from the server to the client to indicate the completion of the four-
packet Discovery process.
28. DHCP traces its origins back to an earlier protocol named ____________________.
29. ____________________ are a collection of scopes that contain sets of non-consecutive IP addresses that can
be assigned to a single network.
30. During the DHCP Discovery process, the client broadcasts a Discover packet that identifies the client's
____________________.
31. The command ____________________ , in the IPCONFIG utility, releases the IP address for the specified
adapter.
Match each item with a statement below.
a.
dynamic address lease
b.
renewal process
c.
release
d.
relay agent process
e.
DHCP Discovery
f.
stateful autoconfiguration
g.
preferred address
h.
Stateless autoconfiguration
i.
DHCP options
32. A type of DHCP address lease in which each address allocation comes with an expiration timeout so address
leases must be renewed before expiration occurs
33. The process of getting another lease time period for an IP address
34. To deactivate an IP address on a client
35. A process that forwards DHCP broadcasts as unicasts directed to a remote DHCP server
36. The four-packet sequence used to obtain an IP address, lease time, and configuration parameters
37. A method for providing IPv6 address assignments by a DHCPv6-enabled server
38. An address the DHCP client remembers from the previous network session
39. A method allowing nodes to automatically configure an IPv6 address without manual configuration
40. Parameter and configuration information that defines what the DHCP client is looking for
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41. What are the most significant differences of DHCPv6 from earlier versions?
42. How does DHCP integrate with DNS?
43. List the four packets used by DHCP Discovery.
44. Briefly describe how to combine stateful and stateless address autoconfiguration.
45. What is the difference between the DHCP server software and the DHCP client software?
46. What is the difference between the Operation Code (OPCODE) field and the Hardware Type Field?
47. What is the difference between a manual address lease and a dynamic address lease?
48. How do the lengths of leases vary?
49. Provide a brief description of how DHCP works from a client's perspective.
50. List the message types used by the DHCP boot sequence.
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Answer Key
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