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Question 25 - CWAP-404 discussion

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A PHY Header is added to the PSDU at which layer?

A.
LLC
Answers
A.
LLC
B.
Network
Answers
B.
Network
C.
PHY
Answers
C.
PHY
D.
MAC
Answers
D.
MAC
Suggested answer: C

Explanation:

A PHY header is added to the PSDU at the PHY layer. A PHY header is a part of the PPDU that contains information such as modulation, coding, and data rate. The PHY header is added by the PHY layer when it converts a PSDU to a PPDU for transmission, or removed by the PHY layer when it converts a PPDU to a PSDU for reception. The other layers do not add or remove a PHY header.Reference:[Wireless Analysis Professional Study Guide CWAP-404], Chapter 4: 802.11 Physical Layer, page 97-98

asked 16/09/2024
S Muchobor
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