Security+ 601 Bluetooth Standards

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Is this chart accurate for Bluetooth 4.0/4.2? I clipped it from the video series.

3.0 is 24 Mbps while 4.0/4.2 is 3 Mbps according to this chart.

Thank you!

@Shahla-Pirnia such a great question, and what a confusing progression of the Bluetooth standard, let me see if I can provide a little more detail:

The first Bluetooth versions (1.0 family) supported a total of 1 Gbps transfer speeds, that only allowed for 732 Kbps of that connection to transfer data and massive power consumption.

When the 2.0 standard came out it departed from Gaussian Frequency Shift Keying to transmit the 1's and 0's and implemented something called Differential Quadrature Phase Shift Keying or DQPSK to modulate the data. This brought a massive increase to the transmission speeds of three times the speed of version 1.2 at 3 Mbps and even more in version 3.0 at 24 Mbps (and support for IEEE 802.11)
When version 4.0 came out the focus was ultra-low energy consumption as the topic priority to meet the demands of small devices. The standard reverted back to the earlier GFSK, which reduced the transmission speeds to the earlier 1 Mbps speed. This is more than the exam might require, but a great question and I hope this helps.

Thank you, Wes!