Wireshark WCNA Exam - Topic 2 Question 1 Discussion

Actual exam question for Wireshark's WCNA exam

Question #: 1
Topic #: 2

[All WCNA Questions]

A host has just booted up. This host is allowed to send ARP queries for the MAC address of the local DNS server before sending gratuitous ARPs to test for duplicate IP addresses on the network.

ATrue

BFalse

Show Suggested Answer

Suggested Answer: A

by Glynda at Nov 17, 2024, 09:21 PM

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Nada

3 months ago

Not sure about that, seems a bit off to me.

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Shenika

3 months ago

Definitely true, I've seen it in action.

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Carma

3 months ago

Wait, can it really send ARP queries first?

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Jina

4 months ago

I thought it was just for duplicate IPs, not DNS queries.

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Rose

4 months ago

True, that's how ARP works!

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Nan

4 months ago

I’m confused; I thought the host could only send gratuitous ARPs after it has its own IP address confirmed.

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Leonora

4 months ago

I feel like I've seen a similar question before, and it was about the order of ARP requests and gratuitous ARPs. Maybe it's False?

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Johana

4 months ago

I'm not entirely sure, but I remember something about gratuitous ARPs being sent to check for duplicates after the initial ARP queries.

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Otis

5 months ago

I think the answer is True because ARP queries are typically sent before any other network activity, right?

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Hannah

5 months ago

This seems like a tricky question. I'll make sure to read it thoroughly and consider the details before making my choice.

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Elli

5 months ago

Hmm, I'm not sure about this one. I'll need to think it through carefully before selecting an answer.

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Stephaine

5 months ago

Okay, I remember now. The host can send ARP queries to find the MAC address of the DNS server, but it needs to do gratuitous ARPs to check for duplicate IPs. I'll go with True.

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Evette

5 months ago

I'm a bit confused about the difference between ARP queries and gratuitous ARPs. I'll need to review that before answering.

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Hui

5 months ago

This question seems straightforward. I think the host is allowed to send ARP queries for the local DNS server before sending gratuitous ARPs.

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Stanton

1 year ago

I agree with Hana. It's important to ensure communication with the DNS server before checking for duplicate IP addresses.

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Emily

1 year ago

True, of course! The host has to find the DNS server first before it can check for duplicate IPs. That's just basic networking 101.

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Rory

1 year ago

Agreed, it's an essential step in the boot-up process.

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Hyman

1 year ago

A) True

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Amie

1 year ago

Exactly, finding the DNS server is crucial for network communication.

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Darrin

1 year ago

A) True

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Katie

1 year ago

False. I think sending gratuitous ARPs to test for duplicate IP addresses should come first.

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Laticia

1 year ago

I don't know, but I bet the exam writer has a good sense of humor. They're really testing our knowledge of network protocols, not our ability to juggle.

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Julie

1 year ago

B) False

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Xochitl

1 year ago

I think it's true.

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Bea

1 year ago

A) True

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Hana

1 year ago

True. It makes sense to first query for the MAC address of the local DNS server.

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Alesia

1 year ago

False. Wouldn't the host need to know the IP address of the DNS server to send an ARP query? Sounds like a chicken and egg problem to me.

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Grover

1 year ago

True, the host can send ARP queries for the MAC address of the local DNS server before checking for duplicate IPs. Why not just ask the DNS server directly?

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Jettie

1 year ago

True, it's a way to ensure there are no IP address conflicts before fully joining the network.

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Roosevelt

1 year ago

The host can send ARP queries for the MAC address of the local DNS server before sending gratuitous ARPs to test for duplicate IP addresses on the network.

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