How many DHCP Troubleshooting Scenarios questions are on this page?

This page has 13 DHCP Troubleshooting Scenarios scenario questions for the 350-401 exam, each with detailed explanations and wrong-answer analysis.

How should I approach 350-401 scenario questions?

Read the full scenario before looking at the answer options. Identify the constraint or requirement in the scenario, then eliminate options that are generally true but wrong for this specific case. Scenario questions reward careful reading over pattern matching.

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Scenario-based practice

DHCP Troubleshooting Scenarios

Practise 350-401 DHCP questions covering DORA flow, scopes, excluded addresses, default gateway options, helper addresses, and troubleshooting clients that receive APIPA or cannot get an IP address.

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scenario questions

350-401

exam code

Cisco

vendor

Scenario guide

How to approach dhcp troubleshooting scenarios

DHCP questions cover server configuration, relay agents (ip helper-address), DHCP snooping, and the four-step DORA handshake. Common exam scenarios: a host isn't getting an IP, a relay agent isn't forwarding requests, or a rogue DHCP server is handing out wrong addresses.

Quick answer

DHCP questions usually test address assignment, scopes, relay agents, excluded addresses and why a client cannot obtain an IP address.

DHCP discovery, offer, request and acknowledgement flow.

DHCP scopes, excluded addresses and default gateway options.

DHCP relay using helper addresses.

Troubleshooting clients that receive APIPA or no address.

Practice scenarios

Question 1mediumdrag order

Read the full DHCP explanation →

Drag and drop the steps of DHCP snooping operation on a Cisco switch into the correct order, from first to last.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps

Order

1Step 1

2Step 2

3Step 3

4Step 4

5Step 5

Question 2mediumdrag order

Read the full DHCP explanation →

Drag and drop the steps of DHCP snooping and dynamic ARP inspection flow into the correct order, from first to last.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps

Order

1Step 1

2Step 2

3Step 3

4Step 4

5Step 5

Question 3mediumdrag order

Read the full DHCP explanation →

Drag and drop the steps of the DHCP DORA process into the correct order, from first to last.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps

Order

1Step 1

2Step 2

3Step 3

4Step 4

5Step 5

Question 4mediumdrag order

Read the full DHCP explanation →

Drag and drop the steps of stateless DHCPv6 address assignment steps into the correct order, from first to last.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps

Order

1Step 1

2Step 2

3Step 3

4Step 4

5Step 5

Question 5mediumdrag order

Read the full DHCP explanation →

Drag and drop the steps of DHCP failover configuration between primary and standby into the correct order, from first to last.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps

Order

1Step 1

2Step 2

3Step 3

4Step 4

5Step 5

Question 6mediummatching

Read the full DHCP explanation →

Drag and drop each DHCPv6 mode on the left to its matching address assignment method on the right.

Drag a concept onto its matching description — or click a concept then click the description.

Concepts

Matches

DHCPv6 server assigns IPv6 addresses and other parameters

DHCPv6 server provides only options (e.g., DNS), addresses via SLAAC

Host generates its own IPv6 address using router advertisements

DHCPv6 prefix delegation for assigning subnets

Router Advertisement used in SLAAC to convey prefix and other info

Question 7mediummulti select

Read the full DHCP explanation →

Which three statements about DHCP relay are true? (Choose three.)

A
The ip helper-address command is used on a router interface to forward DHCP broadcasts to a DHCP server on a different subnet.
Correct because ip helper-address converts DHCP broadcast to unicast and forwards it to the specified server.
B
DHCP relay changes the source IP address of the DHCP packet to the IP address of the relay agent's outgoing interface.
Correct because the relay agent sets the source IP to its own interface IP so the server can reply back to the relay.
C
The ip helper-address command forwards only DHCP traffic by default.
Why wrong: Incorrect because ip helper-address forwards multiple UDP broadcasts (e.g., TFTP, DNS, NetBIOS) by default, not just DHCP.
D
DHCP relay inserts the gateway IP address (giaddr) field in the DHCP packet to indicate the subnet of the client.
Correct because the relay agent sets the giaddr field to its own IP address, allowing the server to allocate an IP from the correct subnet.
E
DHCP relay is required only when the DHCP server is on the same VLAN as the client.
Why wrong: Incorrect because DHCP relay is needed when the server is on a different subnet or VLAN, not the same one.

Full breakdown with real-world context →

Question 8mediumdrag order

Read the full DHCP explanation →

Drag and drop the steps of DHCP snooping and dynamic ARP inspection flow into the correct order, from first to last.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps

Order

1Step 1

2Step 2

3Step 3

4Step 4

5Step 5

Question 9mediumdrag order

Read the full DHCP explanation →

Drag and drop the steps of Cisco DHCP snooping binding table population into the correct order, from first to last.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps

Order

1Step 1

2Step 2

3Step 3

4Step 4

5Step 5

Question 10hardmulti select

Read the full DHCP explanation →

Which three statements about DHCP snooping are true? (Choose three.)

A
DHCP snooping builds a binding database by examining DHCPACK messages received on trusted ports.
Correct because the switch populates the DHCP snooping binding table using the client information from DHCPACK packets.
B
Ports connected to DHCP servers should be configured as trusted ports to allow server messages.
Correct because trusted ports are allowed to send DHCPOFFER, DHCPACK, etc., without being dropped by snooping.
C
The ip dhcp snooping limit rate command is used to restrict the number of DHCP packets per second on trusted ports.
Why wrong: Incorrect because rate limiting is applied on untrusted ports to mitigate DHCP starvation attacks, not on trusted ports.
D
DHCP snooping can insert Option 82 information into DHCP requests received on untrusted ports.
Correct because the switch adds relay agent information (Option 82) to DHCP packets from untrusted ports before forwarding.
E
DHCP snooping prevents rogue DHCP server attacks by blocking all DHCP server messages on trusted ports.
Why wrong: Incorrect because DHCP snooping blocks server messages on untrusted ports, not on trusted ports; trusted ports are allowed to send server messages.

Full breakdown with real-world context →

Question 11mediummatching

Read the full DHCP explanation →

Drag and drop each DHCP option on the left to its matching purpose on the right.

Drag a concept onto its matching description — or click a concept then click the description.

Concepts

Matches

Carries vendor-specific suboptions for device provisioning

Identifies the vendor class of the DHCP client

Adds relay agent information (e.g., circuit ID, remote ID)

Provides TFTP server IP address for IP phones

Supplies a single TFTP server hostname or IP address

Question 12mediumdrag order

Read the full DHCP explanation →

Drag and drop the steps of DHCP failover configuration between primary and standby into the correct order, from first to last.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps

Order

1Step 1

2Step 2

3Step 3

4Step 4

5Step 5

Question 13mediumdrag order

Read the full DHCP explanation →

Drag and drop the steps of Cisco DHCP snooping binding table population into the correct order, from first to last.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps

Order

1Step 1

2Step 2

3Step 3

4Step 4

5Step 5

These 350-401 practice questions are part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style 350-401 questions with detailed explanations, topic-based practice, mock exams, readiness tracking, and study analytics.

DHCP Troubleshooting Scenarios

How to approach dhcp troubleshooting scenarios

Quick answer

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Practice scenarios

Drag and drop the steps of DHCP snooping operation on a Cisco switch into the correct order, from first to last.

Drag and drop the steps of DHCP snooping and dynamic ARP inspection flow into the correct order, from first to last.

Drag and drop the steps of the DHCP DORA process into the correct order, from first to last.

Drag and drop the steps of stateless DHCPv6 address assignment steps into the correct order, from first to last.

Drag and drop the steps of DHCP failover configuration between primary and standby into the correct order, from first to last.

Drag and drop each DHCPv6 mode on the left to its matching address assignment method on the right.

Which three statements about DHCP relay are true? (Choose three.)

Drag and drop the steps of DHCP snooping and dynamic ARP inspection flow into the correct order, from first to last.

Drag and drop the steps of Cisco DHCP snooping binding table population into the correct order, from first to last.

Which three statements about DHCP snooping are true? (Choose three.)

Drag and drop each DHCP option on the left to its matching purpose on the right.

Drag and drop the steps of DHCP failover configuration between primary and standby into the correct order, from first to last.

Drag and drop the steps of Cisco DHCP snooping binding table population into the correct order, from first to last.