My Notes from chapter 10 of the CWNA study guide Wireless LAN client devices 802.11 Radio form factors 802.11 radios are used in both client NICs and access points. External Radios Many form factors, meaning the NIC comes in different shapes and sizes: PCMCIA adapter/PC card Express Card USB Internal Radios Installed inside the device …
Category: CWNA
CWNA Chapter 9 – 802.11 MAC Architecture
My Notes from chapter 9 of the CWNA study guide Packets, frames, and bits Same as OSI Model data traverses through each layer to be transmitted to the receiver and then back up the layers Data-Link layer Layer 2 of the OSI Model Divided into two sublayers: MAC Service Data Unit (MSDU) When the Network …
CWNA Chapter 8 – 802.11 Medium Access
My Notes from chapter 8 of the CWNA study guide Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) vs. Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Set of rules to provide controlled and efficient access to the network medium. CSMA/CD is well known and is used by Ethernet networks CSMA/CA is not as well …
THE WLAN 