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N10-009 Network Implementation Practice Question
Drag and drop the steps in the DHCP lease process (DORA) into the correct order.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Discover, Offer, Request, Acknowledge
The DHCP lease process follows the DORA sequence: Discover, Offer, Request, Acknowledge. The client initiates by broadcasting a Discover packet. DHCP servers reply with an Offer containing an IP address. The client then sends a Request to formally accept one offer. Finally, the server sends an Acknowledge to confirm the lease and provide additional configuration parameters. This order ensures proper negotiation and avoids conflicts.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Discover, Offer, Request, Acknowledge
Why this is correct
This is the correct DORA sequence. The client first sends a Discover broadcast to locate DHCP servers. Servers respond with an Offer. The client then sends a Request to accept an offer. Finally, the server sends an Acknowledge to confirm the lease.
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Discover, Request, Offer, Acknowledge
Why it's wrong here
This sequence is incorrect because a DHCP client cannot send a formal 'Request' for an IP address before a DHCP server has 'Offered' one. The 'Request' message specifically includes the offered IP address and the server identifier, which would not be known to the client without a preceding 'Offer'. Therefore, the client would have no valid parameters to include in an early 'Request', making this step out of order and non-functional.
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Offer, Discover, Request, Acknowledge
Why it's wrong here
This sequence is fundamentally flawed as a DHCP server cannot initiate the lease process by sending an 'Offer' without a client first requesting an IP address. The 'Discover' message, broadcast by the client, is the essential first step that signals the client's presence and need for an IP configuration. Without this initial client-side broadcast, a server has no trigger or destination to send an 'Offer' to, making this order impossible.
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Discover, Offer, Acknowledge, Request
Why it's wrong here
This order is incorrect because the 'Acknowledge' message from the DHCP server must follow the client's formal 'Request' for an IP address lease. The 'Acknowledge' serves as the server's final confirmation and commitment to the lease, which cannot occur before the client has explicitly accepted an 'Offer' via a 'Request'. Placing 'Acknowledge' prematurely means the server is confirming a lease that the client has not yet formally accepted, disrupting the protocol's handshake.
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Related to this question
Learn chapter
Wireless Standards and Configuration
Key term
Packet
A packet is a small unit of data that is sent over a network, containing both the actual data and control information for delivery.
Key term
DHCP
Dynamic Host Configuration Protocol (DHCP) automatically assigns IP addresses and network settings to devices on a network, so they can communicate without manual configuration.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This N10-009 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the N10-009 exam.