H35-210_V2.5 · Question #168
Which of the following DHCP messages is sent by the DHCP client?
The correct answer is A. Discovery. Discovery is correct because it is the first message a DHCP client broadcasts when it joins a network - it has no IP address yet and is "discovering" available DHCP servers. Options B, C, and D are all sent by the DHCP server, not the client: Offer (D) - the server responds to…
Question
Which of the following DHCP messages is sent by the DHCP client?
Options
- ADiscovery
- BNak
- CACK
- DOffer
How the community answered
(27 responses)- A81% (22)
- B4% (1)
- C11% (3)
- D4% (1)
Explanation
Discovery is correct because it is the first message a DHCP client broadcasts when it joins a network - it has no IP address yet and is "discovering" available DHCP servers.
Options B, C, and D are all sent by the DHCP server, not the client:
- Offer (D) - the server responds to Discovery by offering an available IP address.
- ACK (C) - the server confirms and finalizes the IP lease after the client sends a formal Request.
- NAK (B) - the server sends a negative acknowledgment to reject or revoke a client's request.
Memory tip: Use the acronym DORA to remember the full DHCP exchange in order - Discover (client) → Offer (server) → Request (client) → Ack (server). The client sends only D and R; everything else comes from the server.
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