CCNA 2 v7 Modules 7 – 9 Available and Reliable Networks Exam Answers -
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CCNA1 v7
CCNA2 - CCNA3 -
v7 v7
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1. A DHCP-enabled client PC has just booted. During which two steps will Exam Modules 1 – 3: Basic Network
theclient PC use broadcast messages when communicating with a DHCP Answers
Connectivity and Communications
server? (Choose two.)
DHCPDISCOVER Exam
Answers
DHCPACK Modules 4 – 7: Ethernet Concepts
DHCPOFFER
DHCPREQUEST
DHCPNAK Modules 8 – 10: Communicating
2. An administrator issues the commands: Between Networks Exam Answers
Answers
Modules 11 – 13: IP Addressing Exam
Router(config)# interface g0/1
Router(config-if)# ip address dhcp
What is the administrator trying to achieve?
Modules 14 – 15: Network Application
configuring the router to act as a DHCPv4 server
Communications Exam Answers
Answers
configuring the router to obtain IP parameters from a DHCPv4 server
configuring the router to act as a relay agent configuring the router to resolve [ Modules 16 – 17: Building and
IP address conflicts AssessmentSecuring
(PTSA) a Small Network Exam
3. When a client is requesting an initial address lease from a DHCP
[
server,why is the DHCPREQUEST message sent as a broadcast?
(PTSA)
The client does not yet know the IP address of the DHCP server that sent PT Skills] Practice PT Skills
the offer.
The DHCP server may be on a different subnet, so the request must be sent
Final Skills] ITN Final Skills Exam
as a broadcast.
The client does not have a MAC address assigned yet, so it cannot send a
unicast message at Layer 2.
ITNv7 Practice Final Exam
The client may have received offers from multiple servers, and the
broadcast serves to implicitly decline those other offers.
CCNA 1 v7 FINAL Exam Answers
4. Which DHCP IPv4 message contains the following information?
Destination address: 255.255.255.255
Client IPv4 address: 0.0.0.0
Default gateway address: 0.0.0.0
Subnet mask: 0.0.0.0
, DHCPACK
DHCPDISCOVER
DHCPOFFER
DHCPREQUEST
5. Place the options in the following order:
a client initiating a message to find a DHCP server – DHCPDISCOVER a
DHCP server responding to the initial request by a client – DHCPOFFER
the client accepting the IP address provided by the DHCP server –
DHCPREQUEST
the DHCP server confirming that the lease has been accepted – DHCPACK
6. Which protocol automates assignment of IP addresses on a network,
andwhich port number does it use? (Choose two.)
DHCP
DNS
SMB
53
67
80
Explanation: DNS uses port 53 and translates URLs to IP addresses. SMB
provides shared access to files and printers and uses port 445. Port 80 is used
by HTTP. HTTP is a protocol used to communicate between a web browser
and a server.
7. Refer to the exhibit. PC1 is configured to obtain a dynamic IP address
fromthe DHCP server. PC1 has been shut down for two weeks. When PC1
boots and tries to request an available IP address, which destination IP
address will PC1 place in the IP header?
192.168.1.1
192.168.1.255
255.255.255.255
192.168.1.8
Translate »
Explanation: When a host boots and has been configured for dynamic IP
addressing, the device tries to obtain a valid IP address. It sends a
DHCPDISCOVER message. This is a broadcast message because the DHCP
server address is unknown (by design). The destination IP address in the IP
header is 255.255.255.255 and the destination MAC address is
FF:FF:FF:FF:FF:FF.
8. Which message does an IPv4 host use to reply when it receives
aDHCPOFFER message from a DHCP server?
, DHCPOFFER
DHCPDISCOVER
DHCPREQUEST
DHCPACK
Explanation: When the client receives the DHCPOFFER from the server, it
sends back a DHCPREQUEST broadcast message. On receiving the
DHCPREQUEST message, the server replies with a unicast DHCPACK
message.
9. Which command, when issued in the interface configuration mode of
arouter, enables the interface to acquire an IPv4 address automatically from
an ISP, when that link to the ISP is enabled?
service dhcp ip
address dhcp ip
helper-address ip
dhcp pool
Explanation: The ip address dhcp interface configuration command
configures an Ethernet interface as a DHCP client. The service dhcp global
configuration command enables the DHCPv4 server process on the router.
The ip helper-address command is issued to enable DHCP relay on the
router. The ip dhcp pool command creates the name of a pool of addresses
that the server can assign to hosts.
10. Which kind of message is sent by a DHCP client when its IP
addresslease has expired?
a DHCPDISCOVER unicast message a
DHCPREQUEST broadcast message a
DHCPREQUEST unicast message a
DHCPDISCOVER broadcast message
Explanation: When the IP address lease time of the DHCP client expires, it
sends a DHCPREQUEST unicast message directly to the DHCPv4 server that
originally offered the IPv4 address.
11. A host PC is attempting to lease an address through DHCP.
Whatmessage is sent by the server to let the client know it is able to use the
provided IP information?
DHCPDISCOVER
DHCPOFFER
DHCPREQUEST
DHCPACK
DHCPNACK
Translate »
Explanation: When a host uses DHCP to automatically configure an IP
address, the typically sends two messages: the DHCPDISCOVER message
and the DHCPREQUEST message. These two messages are usually sent as
broadcasts to ensure that all DHCP servers receive them. The servers respond
to these messages using DHCPOFFER, DHCPACK, and DHCPNACK
messages, depending on the circumstance.
12. What is one indication that a Windows computer did not receive an
IPv4 address from a DHCP server?
Exams Cisco
DONATE
How to nd: Press “Ctrl + F” in the browser and ll in whatever wording is in the question to
nd that question/answer. If the question is not here, nd it in Questions Bank.
CCNA1 v7
CCNA2 - CCNA3 -
v7 v7
NOTE: If you have the new question on this test, please comment Question and Multiple-
Choice list in form below this article. We will update answers for you in the shortest time. System Test
Thank you! We truly value your contribution to the website. Exam
1. A DHCP-enabled client PC has just booted. During which two steps will Exam Modules 1 – 3: Basic Network
theclient PC use broadcast messages when communicating with a DHCP Answers
Connectivity and Communications
server? (Choose two.)
DHCPDISCOVER Exam
Answers
DHCPACK Modules 4 – 7: Ethernet Concepts
DHCPOFFER
DHCPREQUEST
DHCPNAK Modules 8 – 10: Communicating
2. An administrator issues the commands: Between Networks Exam Answers
Answers
Modules 11 – 13: IP Addressing Exam
Router(config)# interface g0/1
Router(config-if)# ip address dhcp
What is the administrator trying to achieve?
Modules 14 – 15: Network Application
configuring the router to act as a DHCPv4 server
Communications Exam Answers
Answers
configuring the router to obtain IP parameters from a DHCPv4 server
configuring the router to act as a relay agent configuring the router to resolve [ Modules 16 – 17: Building and
IP address conflicts AssessmentSecuring
(PTSA) a Small Network Exam
3. When a client is requesting an initial address lease from a DHCP
[
server,why is the DHCPREQUEST message sent as a broadcast?
(PTSA)
The client does not yet know the IP address of the DHCP server that sent PT Skills] Practice PT Skills
the offer.
The DHCP server may be on a different subnet, so the request must be sent
Final Skills] ITN Final Skills Exam
as a broadcast.
The client does not have a MAC address assigned yet, so it cannot send a
unicast message at Layer 2.
ITNv7 Practice Final Exam
The client may have received offers from multiple servers, and the
broadcast serves to implicitly decline those other offers.
CCNA 1 v7 FINAL Exam Answers
4. Which DHCP IPv4 message contains the following information?
Destination address: 255.255.255.255
Client IPv4 address: 0.0.0.0
Default gateway address: 0.0.0.0
Subnet mask: 0.0.0.0
, DHCPACK
DHCPDISCOVER
DHCPOFFER
DHCPREQUEST
5. Place the options in the following order:
a client initiating a message to find a DHCP server – DHCPDISCOVER a
DHCP server responding to the initial request by a client – DHCPOFFER
the client accepting the IP address provided by the DHCP server –
DHCPREQUEST
the DHCP server confirming that the lease has been accepted – DHCPACK
6. Which protocol automates assignment of IP addresses on a network,
andwhich port number does it use? (Choose two.)
DHCP
DNS
SMB
53
67
80
Explanation: DNS uses port 53 and translates URLs to IP addresses. SMB
provides shared access to files and printers and uses port 445. Port 80 is used
by HTTP. HTTP is a protocol used to communicate between a web browser
and a server.
7. Refer to the exhibit. PC1 is configured to obtain a dynamic IP address
fromthe DHCP server. PC1 has been shut down for two weeks. When PC1
boots and tries to request an available IP address, which destination IP
address will PC1 place in the IP header?
192.168.1.1
192.168.1.255
255.255.255.255
192.168.1.8
Translate »
Explanation: When a host boots and has been configured for dynamic IP
addressing, the device tries to obtain a valid IP address. It sends a
DHCPDISCOVER message. This is a broadcast message because the DHCP
server address is unknown (by design). The destination IP address in the IP
header is 255.255.255.255 and the destination MAC address is
FF:FF:FF:FF:FF:FF.
8. Which message does an IPv4 host use to reply when it receives
aDHCPOFFER message from a DHCP server?
, DHCPOFFER
DHCPDISCOVER
DHCPREQUEST
DHCPACK
Explanation: When the client receives the DHCPOFFER from the server, it
sends back a DHCPREQUEST broadcast message. On receiving the
DHCPREQUEST message, the server replies with a unicast DHCPACK
message.
9. Which command, when issued in the interface configuration mode of
arouter, enables the interface to acquire an IPv4 address automatically from
an ISP, when that link to the ISP is enabled?
service dhcp ip
address dhcp ip
helper-address ip
dhcp pool
Explanation: The ip address dhcp interface configuration command
configures an Ethernet interface as a DHCP client. The service dhcp global
configuration command enables the DHCPv4 server process on the router.
The ip helper-address command is issued to enable DHCP relay on the
router. The ip dhcp pool command creates the name of a pool of addresses
that the server can assign to hosts.
10. Which kind of message is sent by a DHCP client when its IP
addresslease has expired?
a DHCPDISCOVER unicast message a
DHCPREQUEST broadcast message a
DHCPREQUEST unicast message a
DHCPDISCOVER broadcast message
Explanation: When the IP address lease time of the DHCP client expires, it
sends a DHCPREQUEST unicast message directly to the DHCPv4 server that
originally offered the IPv4 address.
11. A host PC is attempting to lease an address through DHCP.
Whatmessage is sent by the server to let the client know it is able to use the
provided IP information?
DHCPDISCOVER
DHCPOFFER
DHCPREQUEST
DHCPACK
DHCPNACK
Translate »
Explanation: When a host uses DHCP to automatically configure an IP
address, the typically sends two messages: the DHCPDISCOVER message
and the DHCPREQUEST message. These two messages are usually sent as
broadcasts to ensure that all DHCP servers receive them. The servers respond
to these messages using DHCPOFFER, DHCPACK, and DHCPNACK
messages, depending on the circumstance.
12. What is one indication that a Windows computer did not receive an
IPv4 address from a DHCP server?
