Question

Choose all statements that are true regarding USBs. Question 2 options: USB 1.0 can transmit data at 12 megabits per second USB 3.0 can plug into a 2.0 port, but will only transmit at the speed of a USB 2.0 USB 3.0 can transmit data at 5 gigabits per second USB 2.0 can plug into a 3.0 port, and it will transmit data at the speed of USB 3.0 USB 2.0 can transmit data at 360 megabits per second

Answer 1

The true statements are that USB 1.0 can transmit at 12 Mbps, USB 3.0 can transmit at 5 Gbps and can plug into a 2.0 port but will operate at 2.0 speeds. USB 2.0 devices in 3.0 ports will operate at 2.0 speeds, not 3.0, and USB 2.0 transmits at 480 Mbps, not 360 Mbps.

Step-by-step explanation:

The true statements regarding USBs are as follows:

• USB 1.0 can transmit data at 12 megabits per second
• USB 3.0 can plug into a 2.0 port, but will only transmit at the speed of a USB 2.0
• USB 3.0 can transmit data at 5 gigabits per second

It is important to note that the speed of a USB connection will always be determined by the slowest link in the chain. Therefore, when a USB 2.0 device is plugged into a USB 3.0 port, it will not be able to utilize the full speed capabilities of USB 3.0 and will operate at USB 2.0 speeds. Conversely, a USB 3.0 device can connect to a USB 2.0 port but will be limited to USB 2.0 speeds as well.

The incorrect statements in the question are:

• USB 2.0 can plug into a 3.0 port, and it will transmit data at the speed of USB 3.0
• USB 2.0 can transmit data at 360 megabits per second (The correct speed for USB 2.0 is 480 megabits per second)

Answer 2

True statements about USB technology are that USB 1.0 can transmit data at 12 Mbps, USB 3.0 can plug into a 2.0 port and will transmit at the speed of USB 2.0, and USB 3.0 can transmit data at 5 Gbps.

Step-by-step explanation:

When considering the statements about Universal Serial Bus (USB) technology, we can assess their validity based on the specifications of each USB version:

• USB 1.0 can transmit data at 12 megabits per second - This statement is true. USB 1.0 had two data rates: 1.5 Mbps (Low Speed) and 12 Mbps (Full Speed).
• USB 3.0 can plug into a 2.0 port, but will only transmit at the speed of a USB 2.0 - This statement is true. USB 3.0 devices are backward compatible, but they will operate at USB 2.0 speeds when plugged into a USB 2.0 port.
• USB 3.0 can transmit data at 5 gigabits per second - This statement is true. USB 3.0, also known as SuperSpeed USB, has a maximum transfer rate of 5 Gbps.
• USB 2.0 can plug into a 3.0 port, and it will transmit data at the speed of USB 3.0 - This statement is false. A USB 2.0 device will operate at its maximum capability, which is 480 Mbps, even when plugged into a USB 3.0 port.
• USB 2.0 can transmit data at 360 megabits per second - This statement is false. The maximum transfer rate for USB 2.0 is 480 Mbps.