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A company's wireless network currently uses WPA2-PSK with a shared passphrase. A security audit identifies that the passphrase is weak and shared among all employees. Which of the following would provide the MOST secure wireless access while addressing the shared passphrase issue?

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A company's wireless network currently uses WPA2-PSK with a shared passphrase. A security audit identifies that the passphrase is weak and shared among all employees. Which of the following would provide the MOST secure wireless access while addressing the shared passphrase issue?

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Answer choices

Why each option matters

Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.

A

Best answer

Implement WPA2-Enterprise with 802.1X

WPA2-Enterprise uses individual user authentication via a RADIUS server, removing the shared key vulnerability.

B

Distractor review

Upgrade to WPA3-Personal with a strong passphrase

WPA3-Personal provides improved encryption but still relies on a shared passphrase, which is a single point of compromise.

C

Distractor review

Disable SSID broadcast

Disabling SSID broadcast hides the network name but does not provide authentication or encryption improvements.

D

Distractor review

Enable MAC address filtering

MAC filtering is easily bypassed and does not address the shared passphrase issue.

Common exam trap

Common exam trap: authentication is not authorization

Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.

Technical deep dive

How to think about this question

This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.

KKey Concepts to Remember

  • Authentication checks who the user is.
  • Authorization controls what the user is allowed to do after login.
  • Privilege levels affect access to EXEC and configuration commands.
  • AAA, TACACS+ and RADIUS can separate login success from command access.

TExam Day Tips

  • Do not assume successful login means full administrative access.
  • Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
  • Separate login problems from permission problems before choosing the answer.

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More questions from this exam

Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.

Question 1

A network engineer needs to connect two switches located 400 meters apart. The cable run includes high electromagnetic interference from nearby machinery. The engineer decides to use fiber optic cabling. Which transceiver type and fiber combination should be used to ensure the link reaches 400 meters while remaining cost-effective?

Question 2

A network engineer is designing a new switched network and needs to ensure that broadcast traffic from one department does not reach another department's workstations. The engineer plans to use VLANs. Which of the following must be configured on the switches to isolate broadcast domains as intended?

Question 3

A security engineer is configuring a site-to-site VPN between two branch offices. The requirement is to encrypt all traffic between the two networks using IPsec. Which IPsec mode should be used to encrypt the entire IP packet including the original header?

Question 4

A network administrator is connecting two switches to increase bandwidth and provide redundancy. Which technology should be used to combine multiple physical links into a single logical link?

Question 5

A network administrator is experiencing issues where unauthorized devices are offering IP addresses to clients, causing connectivity problems. Which security feature should be enabled on switches to prevent this?

Question 6

A network administrator is troubleshooting a connectivity issue and suspects the problem is related to the physical cabling. At which layer of the OSI model should the administrator begin their investigation?

FAQ

Questions learners often ask

What does this N10-009 question test?

Authentication checks who the user is.

What is the correct answer to this question?

The correct answer is: Implement WPA2-Enterprise with 802.1X — WPA2-Enterprise (802.1X) provides per-user authentication using a RADIUS server, eliminating the need for a shared passphrase. Each user has unique credentials (e.g., username/password or certificate). WPA3-Personal still uses a passphrase shared among users. Disabling SSID broadcast and MAC filtering are weak security measures that do not address authentication.

What should I do if I get this N10-009 question wrong?

Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.

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