Networking - Networking Basics - Discussion

Discussion :: Networking Basics - Networking Basics (Q.No.6)


Which WLAN IEEE specification allows up to 54Mbps at 2.4GHz?

[A]. A
[B]. B
[C]. G
[D]. N

Answer: Option C


IEEE 802.11B is 2.4GHz, but with a maximum of only 11Mbps. IEEE 802.11G is in the 2.4GHz range, with a top speed of 54Mbps.

Seema said: (Aug 14, 2012)  
What is the mean of G ?

Aniley Belayneh said: (Dec 6, 2012)  
WLAN: Wireless LAN by IEEE 802.11, 802.11a, 802.11b, 802.11g, 802.11n

The Wireless Local Area Networl (WLAN) technology is defined by the IEEE 802.11 family of specifications. There are currently four specifications in the family: 802.11, 802.11a, 802.11b, and 802.11g. All four use the Ethernet protocol and CSMA/CA (carrier sense multiple access with collision avoidance instead of CSMA/CD) for path sharing.

802.11 -- applies to wireless LANs and provides 1 or 2 Mbps transmission in the 2.4 GHz band using either frequency hopping spread spectrum (FHSS) or direct sequence spread spectrum (DSSS).

802.11a -- an extension to 802.11 that applies to wireless LANs and provides up to 54 Mbps in the 5GHz band. 802.11a uses an orthogonal frequency division multiplexing (OFDM) encoding scheme rather than FHSS or DSSS. The 802.11a specification applies to wireless ATM systems and is used in access hubs.

802.11b (also referred to as 802.11 High Rate or Wi-Fi) -- an extension to 802.11 that applies to wireless LANS and provides 11 Mbps transmission (with a fallback to 5.5, 2 and 1 Mbps) in the 2.4 GHz band. 802.11b uses only DSSS. 802.11b was a ratification to the original 802.11 standard, allowing wireless functionality comparable to Ethernet.

802.11g -- offers wireless transmission over relatively short distances at 20 - 54 Mbps in the 2.4 GHz band. The 802.11g also uses the OFDM encoding scheme.

802.11n -- builds upon previous 802.11 standards by adding MIMO (multiple-input multiple-output). IEEE 802.11n offers high throughput wireless transmission at 100Mbps – 200 Mbps.

G.T.Willwarasu said: (Mar 4, 2013)  
Is there any IEEE 802.11 versions other than this?

Prabhu said: (Sep 30, 2014)  
Why it named as 802.11. And why versions like a, b, g, n? why not a, b, c, d like this.

Kingsley said: (Nov 18, 2014)  
How can ip be calculated? I seriously want to learn that.

Vivekanand R Parab said: (Aug 19, 2015)  
What is main IEEE 802.11, 802.11a, 802.11b, 802.11g, 802.11n?

Pooja said: (Apr 4, 2016)  
What is G?

Karthika said: (Aug 20, 2016)  
What is G, here?

Pooja S said: (Nov 17, 2016)  
What is mean by G? Please describe it in detail.

Abhilesh Gupta said: (Jan 11, 2017)  
IEEE 802.11, a , b , g are the standards of wireless technology.

Andiyappan said: (Jan 27, 2017)  
What is G? Describe it.

Sanaullah Zehri said: (Aug 4, 2017)  
802.11 provide 2 mbps at 2.4Gh.
802.11a provides 54 mbps at 5Ghz.
802.11b provides 11 mbps at 2.4Ghz.
802.11g provides 54 mbps at 2.4Ghz.
802.11n 100 mbps - 200mbps.

Srinu said: (Sep 18, 2017)  
Why we using a G n instead of a b c d?

Kamali said: (Dec 25, 2017)  
How an IP address calculated?

S.Manikandan said: (May 21, 2018)  
802.11n 100 mbps - 200mbps used for what? Please explain.

Sridhar said: (Jun 11, 2018)  
What is mean by G?

Balwant Singh said: (Sep 6, 2018)  
What is G? please explain.

Sandeep said: (Oct 27, 2018)  
What is G? Explain Please.

Ismail said: (Dec 2, 2018)  
802.11 is a set of IEEE standards that govern wireless networking transmission methods. They are commonly used today in their 802.11a, 802.11b, 802.11g, 802.11n and 802.11ac versions to provide wireless connectivity in the home, office and some commercial establishments.

Ruvanesh said: (Mar 20, 2019)  
What is the expansion of IEEE?

Chandan said: (Jul 14, 2019)  
IEEE - Institute of Electrical & Electronics Engineering.

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