Huawei Exam H12-821_V1.0 Topic 1 Question 42 Discussion

Actual exam question for Huawei's H12-821_V1.0 exam

Question #: 42
Topic #: 1

Which of the following statements regarding the stateful inspection firewall is true?

AWhen the stateful inspection firewall checks packets, packets of one same connection are not correlated.

BBecause UDP is a connectionless protocol, so the stateful inspection firewall cannot match UDP packets with the status table.

CThe stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets of the connection are matched directly in the state table.

DThe stateful inspection firewall needs to match the rules for each incoming packet.

Show Suggested Answer

Suggested Answer: A

by Erick at Jul 05, 2023, 09:48 PM

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Nelida

2 months ago

Man, I'm glad I read through the options carefully. If I just saw 'stateful firewall' and picked the first answer, I would have been way off base. This stuff really requires understanding the core concepts.

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Novella

15 days ago

Yeah, it's important to pay attention to the details. The stateful inspection firewall works differently than just matching rules for each incoming packet.

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Tien

28 days ago

C) The stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets of the connection are matched directly in the state table.

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Maybelle

1 months ago

A) When the stateful inspection firewall checks packets, packets of one same connection are not correlated.

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Hildegarde

2 months ago

Option D sounds like it would be super inefficient. Matching every single packet against the full rule set? No way, that's not how a stateful firewall works at all.

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Earnestine

1 days ago

C) The stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets of the connection are matched directly in the state table.

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Arthur

1 months ago

B) Because UDP is a connectionless protocol, so the stateful inspection firewall cannot match UDP packets with the status table.

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Hyun

1 months ago

A) When the stateful inspection firewall checks packets, packets of one same connection are not correlated.

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Viola

2 months ago

Haha, option A is pretty funny. Of course the stateful firewall correlates packets of the same connection, that's the whole reason it's called 'stateful'!

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Shawnda

2 months ago

I was a bit confused by option B. Just because UDP is connectionless, it doesn't mean the stateful firewall can't track and match UDP packets based on the connection state. That's kind of the whole point of stateful inspection!

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Lyla

25 days ago

User 2: That's right, the stateful inspection firewall can match UDP packets based on the connection state.

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Maile

1 months ago

User 1: Option B is incorrect because the stateful inspection firewall can still track UDP packets.

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Galen

2 months ago

But C makes sense because it would be more efficient to match subsequent packets directly in the state table.

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Gearldine

2 months ago

Option C seems to be the correct answer. The stateful inspection firewall keeps track of the connection state, so it only needs to match the first packet against the rules, and then can quickly match subsequent packets in the state table.

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