N10-009 Network Troubleshooting Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  The client's wireless adapter is faulty

  Why it's wrong here

  A faulty wireless adapter on the client would typically manifest as an inability to detect wireless networks, failure to associate with any AP, or persistent disconnections. Given that the client successfully associates with the AP, the core functionality of the adapter to establish a physical and data link layer connection is confirmed to be operational. While a very specific, subtle fault *could* theoretically interfere with DHCP traffic, it is far less probable than a network configuration issue when the primary association process functions correctly.

  When this WOULD be correct

  A technician is troubleshooting a client that cannot associate with any access point. The client's wireless adapter is faulty would be correct if the client fails to detect or connect to any Wi-Fi networks, with other devices working fine.

• ✓

  The AP is not configured with a DHCP relay

  Why this is correct

  Correct. When the DHCP server is on a different subnet than the wireless clients, the AP or a Layer 3 device must relay DHCP broadcasts. Without a relay, the client's DHCP discover messages never reach the server.

• ✗

  The client's SSID is incorrect

  Why it's wrong here

  If the client's SSID were incorrect, the initial association process with the Access Point (AP) would fail entirely. The SSID (Service Set Identifier) acts as the network name, and a client must precisely match the AP's broadcast SSID to initiate the authentication and link-layer connection. Since the question explicitly states the client *can* associate, this indicates the SSID is correctly configured on the client, making this option an invalid cause for a DHCP failure.

  When this WOULD be correct

  A client cannot see or connect to a wireless network because the SSID is not broadcast or the client has a mismatched SSID configured.

• ✗

  The AP's radio is operating on the wrong channel

  Why it's wrong here

  The AP's radio operating on a 'wrong' channel primarily impacts the quality and reliability of the wireless connection, not the fundamental ability to associate or process network protocols like DHCP. While an overly congested or non-standard channel might lead to poor signal strength, high latency, or dropped packets, it does not inherently prevent a client from establishing an initial association with the AP. Once associated, the client can still attempt DHCP, even if the channel performance is suboptimal, meaning this is not the direct cause of a DHCP failure.

  When this WOULD be correct

  A client can see the SSID but cannot connect or experiences intermittent connectivity. In that scenario, the AP's radio operating on the wrong channel would cause association failures or poor performance.

Option-by-option analysis

Why each answer is right or wrong

Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The N10-009 exam frequently reuses these exact scenarios with slightly different constraints.

Analysis generated from the official N10-009blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”