Cisco CCNA 200-301 DHCP, DNS and DHCP Relay Practice Test

Topic 27 focuses on DHCP, DNS and DHCP Relay for the Cisco Certified Network Associate (CCNA) certification and the 200-301 exam, using Cisco networking and Cisco IOS concepts where relevant. For broader exam preparation, review the Cisco CCNA 200-301 Exam Dumps page. Each question includes a concise explanation of the correct answer and the technical reason the other choices are incorrect.

Question 1

Which initial DHCP client broadcast is used to locate available DHCP servers?

1. DHCP Request
2. Default-router option
3. DHCP Offer
4. DHCP Discover

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes the initial DHCP client broadcast used to locate available DHCP servers.

Incorrect Answers

Answer A is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

Answer B is incorrect because the “Default-router option” option describes a different concept: the DHCP option that tells clients which IP address to use as their default gateway.

Answer C is incorrect because the “DHCP Offer” option describes a different concept: a DHCP server response proposing an IP configuration to a client.

 

Question 2

What is a DHCP server response proposing an IP configuration to a client?

1. DHCP Offer
2. Default-router option
3. DNS AAAA record
4. DHCP lease

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes a DHCP server response proposing an IP configuration to a client.

Incorrect Answers

Answer B is incorrect because the “Default-router option” option describes a different concept: the DHCP option that tells clients which IP address to use as their default gateway.

Answer C is incorrect because the “DNS AAAA record” option describes a different concept: a DNS resource record that maps a hostname to an IPv6 address.

Answer D is incorrect because the “DHCP lease” option describes a different concept: the time-limited assignment of an IP address and related parameters to a DHCP client.

 

Question 3

Which DHCP client message is used to request or accept a specific offered address and configuration?

1. DNS AAAA record
2. DHCP Offer
3. DHCP Request
4. DHCP pool

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes the DHCP client message used to request or accept a specific offered address and configuration.

Incorrect Answers

Answer A is incorrect because the “DNS AAAA record” option describes a different concept: a DNS resource record that maps a hostname to an IPv6 address.

Answer B is incorrect because the “DHCP Offer” option describes a different concept: a DHCP server response proposing an IP configuration to a client.

Answer D is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

 

Question 4

Which DHCP server acknowledgment confirms a lease and provides final configuration parameters?

1. DNS A record
2. Default-router option
3. DHCP ACK
4. DHCP Discover

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes the DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

Incorrect Answers

Answer A is incorrect because the “DNS A record” option describes a different concept: a DNS resource record that maps a hostname to an IPv4 address.

Answer B is incorrect because the “Default-router option” option describes a different concept: the DHCP option that tells clients which IP address to use as their default gateway.

Answer D is incorrect because the “DHCP Discover” option describes a different concept: the initial DHCP client broadcast used to locate available DHCP servers.

 

Question 5

What is a configured scope of addresses and options from which a DHCP server allocates client settings?

1. DHCP pool
2. Default-router option
3. DHCP ACK
4. ip helper-address

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes a configured scope of addresses and options from which a DHCP server allocates client settings.

Incorrect Answers

Answer B is incorrect because the “Default-router option” option describes a different concept: the DHCP option that tells clients which IP address to use as their default gateway.

Answer C is incorrect because the “DHCP ACK” option describes a different concept: the DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

Answer D is incorrect because the “ip helper-address” option describes a different concept: a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

 

Question 6

What is the time-limited assignment of an IP address and related parameters to a DHCP client?

1. Default-router option
2. DHCP lease
3. DHCP Request
4. ip helper-address

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes the time-limited assignment of an IP address and related parameters to a DHCP client.

Incorrect Answers

Answer A is incorrect because the “Default-router option” option describes a different concept: the DHCP option that tells clients which IP address to use as their default gateway.

Answer C is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

Answer D is incorrect because the “ip helper-address” option describes a different concept: a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

 

Question 7

Which DHCP option tells clients which IP address to use as their default gateway?

1. DNS A record
2. ip helper-address
3. DHCP Request
4. Default-router option

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes the DHCP option that tells clients which IP address to use as their default gateway.

Incorrect Answers

Answer A is incorrect because the “DNS A record” option describes a different concept: a DNS resource record that maps a hostname to an IPv4 address.

Answer B is incorrect because the “ip helper-address” option describes a different concept: a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

Answer C is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

 

Question 8

Which DNS resource record maps a hostname to an IPv4 address?

1. DNS A record
2. DHCP pool
3. DHCP Request
4. DNS AAAA record

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes a DNS resource record that maps a hostname to an IPv4 address.

Incorrect Answers

Answer B is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

Answer C is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

Answer D is incorrect because the “DNS AAAA record” option describes a different concept: a DNS resource record that maps a hostname to an IPv6 address.

 

Question 9

Which DNS resource record maps a hostname to an IPv6 address?

1. DNS A record
2. DNS AAAA record
3. DHCP Request
4. DHCP Offer

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes a DNS resource record that maps a hostname to an IPv6 address.

Incorrect Answers

Answer A is incorrect because the “DNS A record” option describes a different concept: a DNS resource record that maps a hostname to an IPv4 address.

Answer C is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

Answer D is incorrect because the “DHCP Offer” option describes a different concept: a DHCP server response proposing an IP configuration to a client.

 

Question 10

Which Cisco IOS interface command commonly is used to relay UDP broadcasts such as DHCP requests to a server on another subnet?

1. ip helper-address
2. DHCP pool
3. DNS AAAA record
4. DHCP Request

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

Incorrect Answers

Answer B is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

Answer C is incorrect because the “DNS AAAA record” option describes a different concept: a DNS resource record that maps a hostname to an IPv6 address.

Answer D is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

 

Question 11

For DHCP Discover, which statement is accurate?

1. The time-limited assignment of an IP address and related parameters to a DHCP client.
2. The DHCP server acknowledgment that confirms a lease and provides final configuration parameters.
3. The initial DHCP client broadcast used to locate available DHCP servers.
4. A configured scope of addresses and options from which a DHCP server allocates client settings.

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes the initial DHCP client broadcast used to locate available DHCP servers.

Incorrect Answers

Answer A is incorrect because the “DHCP lease” option describes a different concept: the time-limited assignment of an IP address and related parameters to a DHCP client.

Answer B is incorrect because the “DHCP ACK” option describes a different concept: the DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

Answer D is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

 

Question 12

For DHCP Offer, which statement is accurate?

1. A DHCP server response proposing an IP configuration to a client.
2. The DHCP server acknowledgment that confirms a lease and provides final configuration parameters.
3. A Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.
4. A configured scope of addresses and options from which a DHCP server allocates client settings.

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes a DHCP server response proposing an IP configuration to a client.

Incorrect Answers

Answer B is incorrect because the “DHCP ACK” option describes a different concept: the DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

Answer C is incorrect because the “ip helper-address” option describes a different concept: a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

Answer D is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

 

Question 13

For DHCP Request, which statement is accurate?

1. A Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.
2. The DHCP server acknowledgment that confirms a lease and provides final configuration parameters.
3. The DHCP client message used to request or accept a specific offered address and configuration.
4. The DHCP option that tells clients which IP address to use as their default gateway.

Correct Answer: C

 

Correct Answer

Answer C is correct because it accurately defines DHCP Request. The matching definition is: The DHCP client message used to request or accept a specific offered address and configuration.

Incorrect Answers

Answer A is incorrect because the “ip helper-address” option describes a different concept: a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

Answer B is incorrect because the “DHCP ACK” option describes a different concept: the DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

Answer D is incorrect because the “Default-router option” option describes a different concept: the DHCP option that tells clients which IP address to use as their default gateway.

 

Question 14

For DHCP ACK, which statement is accurate?

1. The time-limited assignment of an IP address and related parameters to a DHCP client.
2. The initial DHCP client broadcast used to locate available DHCP servers.
3. The DHCP server acknowledgment that confirms a lease and provides final configuration parameters.
4. A configured scope of addresses and options from which a DHCP server allocates client settings.

Correct Answer: C

 

Correct Answer

Answer C is correct because the choice accurately describes DHCP ACK: The DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

Incorrect Answers

Answer A is incorrect because the “DHCP lease” option describes a different concept: the time-limited assignment of an IP address and related parameters to a DHCP client.

Answer B is incorrect because the “DHCP Discover” option describes a different concept: the initial DHCP client broadcast used to locate available DHCP servers.

Answer D is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

 

Question 15

For DHCP pool, which statement is accurate?

1. A Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.
2. A configured scope of addresses and options from which a DHCP server allocates client settings.
3. A DHCP server response proposing an IP configuration to a client.
4. The DHCP option that tells clients which IP address to use as their default gateway.

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes a configured scope of addresses and options from which a DHCP server allocates client settings.

Incorrect Answers

Answer A is incorrect because the “ip helper-address” option describes a different concept: a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

Answer C is incorrect because the “DHCP Offer” option describes a different concept: a DHCP server response proposing an IP configuration to a client.

Answer D is incorrect because the “Default-router option” option describes a different concept: the DHCP option that tells clients which IP address to use as their default gateway.

 

Question 16

For DHCP lease, which statement is accurate?

1. The time-limited assignment of an IP address and related parameters to a DHCP client.
2. The initial DHCP client broadcast used to locate available DHCP servers.
3. The DHCP client message used to request or accept a specific offered address and configuration.
4. A DNS resource record that maps a hostname to an IPv6 address.

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes the time-limited assignment of an IP address and related parameters to a DHCP client.

Incorrect Answers

Answer B is incorrect because the “DHCP Discover” option describes a different concept: the initial DHCP client broadcast used to locate available DHCP servers.

Answer C is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

Answer D is incorrect because the “DNS AAAA record” option describes a different concept: a DNS resource record that maps a hostname to an IPv6 address.

 

Question 17

For Default-router option, which statement is accurate?

1. The DHCP server acknowledgment that confirms a lease and provides final configuration parameters.
2. A DHCP server response proposing an IP configuration to a client.
3. A configured scope of addresses and options from which a DHCP server allocates client settings.
4. The DHCP option that tells clients which IP address to use as their default gateway.

Correct Answer: D

 

Correct Answer

Answer D is correct because it accurately defines Default-router option. The matching definition is: The DHCP option that tells clients which IP address to use as their default gateway.

Incorrect Answers

Answer A is incorrect because the “DHCP ACK” option describes a different concept: the DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

Answer B is incorrect because the “DHCP Offer” option describes a different concept: a DHCP server response proposing an IP configuration to a client.

Answer C is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

 

Question 18

For DNS A record, which statement is accurate?

1. A Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.
2. The DHCP client message used to request or accept a specific offered address and configuration.
3. The initial DHCP client broadcast used to locate available DHCP servers.
4. A DNS resource record that maps a hostname to an IPv4 address.

Correct Answer: D

 

Correct Answer

Answer D is correct because the choice accurately describes DNS A record: A DNS resource record that maps a hostname to an IPv4 address.

Incorrect Answers

Answer A is incorrect because the “ip helper-address” option describes a different concept: a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

Answer B is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

Answer C is incorrect because the “DHCP Discover” option describes a different concept: the initial DHCP client broadcast used to locate available DHCP servers.

 

Question 19

For DNS AAAA record, which statement is accurate?

1. A Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.
2. The time-limited assignment of an IP address and related parameters to a DHCP client.
3. A DNS resource record that maps a hostname to an IPv6 address.
4. The DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes a DNS resource record that maps a hostname to an IPv6 address.

Incorrect Answers

Answer A is incorrect because the “ip helper-address” option describes a different concept: a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

Answer B is incorrect because the “DHCP lease” option describes a different concept: the time-limited assignment of an IP address and related parameters to a DHCP client.

Answer D is incorrect because the “DHCP ACK” option describes a different concept: the DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

 

Question 20

For ip helper-address, which statement is accurate?

1. The DHCP client message used to request or accept a specific offered address and configuration.
2. A Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.
3. The DHCP option that tells clients which IP address to use as their default gateway.
4. The initial DHCP client broadcast used to locate available DHCP servers.

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

Incorrect Answers

Answer A is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

Answer C is incorrect because the “Default-router option” option describes a different concept: the DHCP option that tells clients which IP address to use as their default gateway.

Answer D is incorrect because the “DHCP Discover” option describes a different concept: the initial DHCP client broadcast used to locate available DHCP servers.

 

Question 21

In a branch-services review, the team must identify the technology that provides the following function: The initial DHCP client broadcast used to locate available DHCP servers. Which option should be selected?

1. DHCP Discover
2. Default-router option
3. DHCP pool
4. ip helper-address

Correct Answer: A

 

Correct Answer

Answer A is correct because DHCP Discover directly provides the function required by the scenario. The initial DHCP client broadcast used to locate available DHCP servers.

Incorrect Answers

Answer B is incorrect because the “Default-router option” option describes a different concept: the DHCP option that tells clients which IP address to use as their default gateway.

Answer C is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

Answer D is incorrect because the “ip helper-address” option describes a different concept: a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

 

Question 22

A DHCP server responds to a client’s discovery by proposing an available IP configuration. The client has not yet accepted the proposal. Which message has the server sent?

1. DHCP lease
2. ip helper-address
3. DHCP Request
4. DHCP Offer

Correct Answer: D

 

Correct Answer

Answer D is correct because the operational requirement in the stem maps to DHCP Offer: A DHCP server response proposing an IP configuration to a client.

Incorrect Answers

Answer A is incorrect because the “DHCP lease” option describes a different concept: the time-limited assignment of an IP address and related parameters to a DHCP client.

Answer B is incorrect because the “ip helper-address” option describes a different concept: a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

Answer C is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

 

Question 23

During a service-verification task, the design calls for the following capability: The DHCP client message used to request or accept a specific offered address and configuration. Which option names that capability most accurately?

1. Default-router option
2. DHCP pool
3. DHCP Offer
4. DHCP Request

Correct Answer: D

 

Correct Answer

Answer D is correct because DHCP Request is the most precise fit for the stated requirement. The DHCP client message used to request or accept a specific offered address and configuration.

Incorrect Answers

Answer A is incorrect because the “Default-router option” option describes a different concept: the DHCP option that tells clients which IP address to use as their default gateway.

Answer B is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

Answer C is incorrect because the “DHCP Offer” option describes a different concept: a DHCP server response proposing an IP configuration to a client.

 

Question 24

A DHCP client has requested an offered lease and the server now confirms the lease and configuration. Which message completes this acceptance?

1. Default-router option
2. DHCP ACK
3. DHCP pool
4. DHCP Request

Correct Answer: B

 

Correct Answer

Answer B is correct because the scenario is describing the role of DHCP ACK. The DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

Incorrect Answers

Answer A is incorrect because the “Default-router option” option describes a different concept: the DHCP option that tells clients which IP address to use as their default gateway.

Answer C is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

Answer D is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

 

Question 25

While working on an operations troubleshooting session, an administrator encounters this requirement: A configured scope of addresses and options from which a DHCP server allocates client settings. Which answer is the most precise match?

1. DHCP ACK
2. DHCP pool
3. DNS AAAA record
4. DHCP Discover

Correct Answer: B

 

Correct Answer

Answer B is correct because DHCP pool directly provides the function required by the scenario. A configured scope of addresses and options from which a DHCP server allocates client settings.

Incorrect Answers

Answer A is incorrect because the “DHCP ACK” option describes a different concept: the DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

Answer C is incorrect because the “DNS AAAA record” option describes a different concept: a DNS resource record that maps a hostname to an IPv6 address.

Answer D is incorrect because the “DHCP Discover” option describes a different concept: the initial DHCP client broadcast used to locate available DHCP servers.

 

Question 26

In a branch-services review, the team must identify the technology that provides the following function: The time-limited assignment of an IP address and related parameters to a DHCP client. Which option should be selected?

1. Default-router option
2. DHCP Offer
3. DHCP lease
4. DHCP ACK

Correct Answer: C

 

Correct Answer

Answer C is correct because the operational requirement in the stem maps to DHCP lease: The time-limited assignment of an IP address and related parameters to a DHCP client.

Incorrect Answers

Answer A is incorrect because the “Default-router option” option describes a different concept: the DHCP option that tells clients which IP address to use as their default gateway.

Answer B is incorrect because the “DHCP Offer” option describes a different concept: a DHCP server response proposing an IP configuration to a client.

Answer D is incorrect because the “DHCP ACK” option describes a different concept: the DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

 

Question 27

Clients receive addresses successfully but must also learn the next hop for traffic outside their subnet. Which DHCP option supplies that gateway?

1. DNS AAAA record
2. Default-router option
3. DHCP Offer
4. DHCP pool

Correct Answer: B

 

Correct Answer

Answer B is correct because Default-router option is the most precise fit for the stated requirement. The DHCP option that tells clients which IP address to use as their default gateway.

Incorrect Answers

Answer A is incorrect because the “DNS AAAA record” option describes a different concept: a DNS resource record that maps a hostname to an IPv6 address.

Answer C is incorrect because the “DHCP Offer” option describes a different concept: a DHCP server response proposing an IP configuration to a client.

Answer D is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

 

Question 28

During a service-verification task, the design calls for the following capability: A DNS resource record that maps a hostname to an IPv4 address. Which option names that capability most accurately?

1. DHCP ACK
2. DHCP Offer
3. DHCP Request
4. DNS A record

Correct Answer: D

 

Correct Answer

Answer D is correct because the scenario is describing the role of DNS A record. A DNS resource record that maps a hostname to an IPv4 address.

Incorrect Answers

Answer A is incorrect because the “DHCP ACK” option describes a different concept: the DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

Answer B is incorrect because the “DHCP Offer” option describes a different concept: a DHCP server response proposing an IP configuration to a client.

Answer C is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

 

Question 29

An administrator adds a DNS entry so a hostname resolves to a 128-bit IPv6 address. Which resource-record type is required?

1. DNS AAAA record
2. ip helper-address
3. DHCP Request
4. DHCP pool

Correct Answer: A

 

Correct Answer

Answer A is correct because DNS AAAA record directly provides the function required by the scenario. A DNS resource record that maps a hostname to an IPv6 address.

Incorrect Answers

Answer B is incorrect because the “ip helper-address” option describes a different concept: a Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

Answer C is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.

Answer D is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

 

Question 30

While working on an operations troubleshooting session, an administrator encounters this requirement: A Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet. Which answer is the most precise match?

1. DHCP pool
2. ip helper-address
3. DHCP ACK
4. DHCP Request

Correct Answer: B

 

Correct Answer

Answer B is correct because the operational requirement in the stem maps to ip helper-address: A Cisco IOS interface command commonly used to relay UDP broadcasts such as DHCP requests to a server on another subnet.

Incorrect Answers

Answer A is incorrect because the “DHCP pool” option describes a different concept: a configured scope of addresses and options from which a DHCP server allocates client settings.

Answer C is incorrect because the “DHCP ACK” option describes a different concept: the DHCP server acknowledgment that confirms a lease and provides final configuration parameters.

Answer D is incorrect because the “DHCP Request” option describes a different concept: the DHCP client message used to request or accept a specific offered address and configuration.