My Notes from chapter 20 of the CWNA study guide Mobile Device Management Company-issued devices versus personal devices An MDM solution can be used to manage both company-issued devices and personal devices. the management of CID and BYOD is quite different. The management strategy for company mobile devices usually entails more in-depth security because very …
Continue reading CWNA Chapter 20 – Bring Your Own Device (BYOD)
My Notes from chapter 19 of the CWNA study guide 802.11ac-2013 amendment 802.11ac technology does not operate in the 2.4 GHz ISM band, only the 5 GHz U-NII bands. 5 GHz only 802.11ac expands channel widths even further than 802.11n, with channel widths of 80 MHz and 160 MHz. Due to the limited frequency space …
Continue reading CWNA Chapter 19 – Very High Throughput (VHT) and 802.11ac
My Notes from chapter 18 of the CWNA study guide 802.11n-2009 amendment Defines High Throughput (HT) Clause 20 radios that use multiple-input, multiple-output (MIMO) technology in unison with Orthogonal Frequency Division Multiplexing (OFDM) technology Benefits of using MIMO are increased throughput and even greater range 802.11n radios are backward compatible with legacy 802.11a/b/g radios A …
My Notes from chapter 17 of the CWNA study guide History of PoE Eventually, some of the networking devices became small enough, both physically and electronically, that it became possible and practical not only to use the Ethernet cable to transmit data to the device, but also to send the electricity necessary to power the …
Continue reading CWNA Chapter 17 – Power over Ethernet (PoE)
My Notes from chapter 16 of the CWNA study guide Site survey defined Protocol and spectrum analysis Ten years ago, if you wanted to plan and design a wireless network, the likelihood of interference from other networks or wireless devices was much less than it is now. A spectrum analyser will help identify whether there …
Continue reading CWNA Chapter 16 – Site Survey Systems and Devices
My Notes from chapter 15 of the CWNA study guide WLAN site survey interview Customer briefing If a wireless network is being planned for your company or for a prospective client, it is highly recommended that you sit management down, give them an overview of 802.11 wireless networking, and talk with them about how and …
Continue reading CWNA Chapter 15 – Radio Frequency Site Survey Fundamentals
My Notes from chapter 14 of the CWNA study guide Wireless attacks Rogue wireless devices A potential open and unsecured gateway straight into the wired infrastructure that the company wants to protect. However, what is there to prevent an individual from installing their own wireless portal onto the network backbone? A rogue access point is …
Continue reading CWNA Chapter 14 – Wireless Attacks, Intrusion Monitoring and Policy
My Notes from chapter 13 of the CWNA study guide 802.11 security basics Data privacy and integrity All data transmissions travel in the open air. Protecting data privacy in a wired network is much easier because physical access to the wired medium is more restricted, whereas access to wireless transmissions is available to anyone in …
Continue reading CWNA Chapter 13 – 802.11 Network Security Architecture
My Notes from chapter 12 of the CWNA study guide Layer 2 retransmissions The mortal enemy of WLAN performance is layer 2 retransmissions that occur at the MAC sublayer If a collision occurs or any portion of a unicast frame is corrupted, the cyclic redundancy check (CRC) will fail and the receiving 802.11 radio will …
Continue reading CWNA Chapter 12 – WLAN Troubleshooting and Design
My Notes from chapter 11 of the CWNA study guide Deployment considerations for commonly supported WLAN applications and devices Data Data Email and web browsing are two of the most common applications One of the most important aspects of designing a network to handle data-oriented applications is to ensure that the network design is capable …
Continue reading CWNA Chapter 11 – WLAN Deployment and Vertical Markets
It's not all about Wi-Fi anymore
Networking With A Side of Snark
One radio guy's journey into an IP world. These are my musings alone and don't represent my employer.
My Wifi Blog page
Experiences of a Connectivity Engineer
the world where wires fail to exist
My journey through the world of Wi-Fi...
A blog about wireless networking from Jim Vajda, CWNE #183
Welcome to the world of wireless networks !!!
Not Another Wireless Blog
Not Another Wireless Blog
Not Another Wireless Blog
Sam's WiFi space - CWNE #101 - CCIE #40629 (Wireless)
Not Another Wireless Blog
Not Another Wireless Blog
THE WLAN 