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CompTIA Exam CNX-001 Topic 2 Question 1 Discussion

Actual exam question for CompTIA's CNX-001 exam

Question #: 1
Topic #: 2

[All CNX-001 Questions]

An administrator needs to add a device to the allow list in order to bypass user authentication of an AAA system. The administrator uses MAC filtering and needs to discover the device's MAC address to accomplish this task. The device receives an IP address from DHCP, but the IP address changes daily. Which of the following commands should the administrator run on the device to locate its MAC address?

Aipconfig /all

Bnetstat -an

Carp -a

Dnslookup

Show Suggested Answer

Suggested Answer: A

Running ipconfig /all on the device will display the physical (MAC) address of each network adapter, allowing you to copy the correct MAC for your allow-list entry.

by Felicia at Jun 11, 2025, 09:29 PM

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Blondell

4 days ago

Nah, nslookup? Really? That's for DNS stuff, not MAC addresses. C is the way to go!

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Raina

8 days ago

Haha, this is like a game of 'Find the MAC Address' - gotta love those IT puzzles!

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Emmett

12 days ago

I'm not sure, but I think ipconfig /all could also show the MAC address. Can someone confirm?

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Gerald

16 days ago

I agree with Boris, arp -a is the right command to find the MAC address.

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Catina

19 days ago

I'm going with A. The ipconfig /all command should show you the MAC address along with other juicy network details.

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Daron

8 days ago

User 1: I think C) arp -a might be the right command to find the MAC address.

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Delisa

26 days ago

Hmm, I'm not sure. Maybe B? The netstat -an command could give you some network info, right?

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Bea

14 days ago

User2: User1 is right. You should use the arp -a command to find the MAC address.

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Linette

17 days ago

User1: No, the netstat -an command won't give you the MAC address. Try again.

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Boris

28 days ago

I think the answer is C) arp -a because it shows the MAC address of devices on the network.

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Louis

1 months ago

Definitely C! The arp -a command will show the MAC addresses of all the devices on the network. Easy peasy!

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Vincenza

7 days ago

B) netstat -an

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Dominic

8 days ago

A) ipconfig /all

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