COMPUTER FUNDAMENTALS

COMPUTER NETWORKS AND COMMUNICATIONS

NETWORK TOPOLOGIES AND PROTOCOLS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Choose all that are true about WiFi
A
WiFi is a wireless protocol
B
WiFi is just a catchy name for the protocol IEEE 802.11
C
WiFi needs Ethernet cables to connect you to it
D
WiFi is just another name for Internet
Explanation: 

Detailed explanation-1: -IEEE 802.11 standard, popularly known as WiFi, lays down the architecture and specifications of wireless LANs (WLANs). WiFi or WLAN uses high-frequency radio waves instead of cables for connecting the devices in LAN.

Detailed explanation-2: -IEEE 802.11 is used in most home and office networks to allow laptops, printers, smartphones, and other devices to communicate with each other and access the Internet without connecting wires.

Detailed explanation-3: -What Does IEEE 802.11a Mean? IEEE 802.11a is an amendment to the 802.11 standard for wireless LANs. It is of of the specifications that is more commonly known as Wi-Fi. 802.11a uses radio frequencies in the 5 GHz band and supports theoretical throughput of up to 54 Mbps.

Detailed explanation-4: -802.11b (also referred to as 802.11 High Rate or Wi-Fi) is an IEEE standard and an extension to 802.11 that applies to wireless LAN’s and provides 11 Mbps transmission (with a fallback to 5.5, 2 and 1-Mbps) in the 2.4 GHz band.

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