CWNP Exam CWAP-403 Topic 11 Question 59 Discussion

Actual exam question for CWNP's CWAP-403 exam

Question #: 59
Topic #: 11

[All CWAP-403 Questions]

Given: The Frame Check Sequence (FCS) is a 32 CRC used for error detection. The CRC is calculated over what?

AFrame Body only

BMac Header and Frame Body only

CPHY Header, MAC Header and Frame Body

DPHY Header and MAC Header only

Show Suggested Answer

Suggested Answer: C

by Edna at May 28, 2024, 12:05 PM

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Nana

1 months ago

Wait, is the FCS the same as the CRC? I'm having flashbacks to my college crypto class. This is why I became a software engineer, not a network wizard.

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Coral

1 days ago

That makes sense, thanks for clarifying.

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Carolynn

4 days ago

The CRC is calculated over the PHY Header, MAC Header, and Frame Body.

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Garry

16 days ago

Yes, the FCS is essentially a CRC used for error detection.

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Jeff

1 months ago

I'm just going to eenie-meenie-miney-mo this one. Checksums are like my sixth sense - I can never quite keep track of them.

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Sherell

1 months ago

D seems like the obvious choice, but then again, who trusts the PHY header these days? I'll go with C to play it safe.

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Claribel

5 days ago

User1: I think D is the safest option.

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Pete

1 months ago

Hmm, I thought the FCS was just for the Frame Body. Guess I've been living in the Stone Age. Time to upgrade my networking knowledge.

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Domitila

2 months ago

The correct answer is C. The CRC is calculated over the PHY Header, MAC Header, and Frame Body. Gotta love those redundant checksums!

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Kiley

18 days ago

C) PHY Header, MAC Header and Frame Body

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Nobuko

25 days ago

B) Mac Header and Frame Body only

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Caprice

1 months ago

A) Frame Body only

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Lonny

2 months ago

I think it's calculated over the PHY Header, MAC Header and Frame Body.

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Lenna

2 months ago

I believe it's calculated over the Mac Header and Frame Body only.

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Jesusita

2 months ago

I think the CRC is calculated over the Frame Body only.

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