CompTIA A+ Certification Quiz Enhanced 2

What is the maximum number of devices that can be theoretically connected to a single USB controller?

• 127 devices

• 64 devices

• 256 devices

• 32 devices

Answer explanation

The correct answer is 127 devices because USB controllers support up to 127 devices due to the addressing limitations of USB technology.

Which of the following is NOT a function divided into classes for USB peripheral devices?

• Mass storage

• Human interface

• Audio device

• Video streaming

Answer explanation

The correct choice is Video streaming because it is NOT a function divided into classes for USB peripheral devices like Mass storage, Human interface, and Audio device.

How are transfer rates for data typically expressed in computers?

• Bits per second

• Bytes per minute

• Kilobytes per hour

• Megabytes per day

Answer explanation

Transfer rates for data are typically expressed in bits per second in computers.

What does the abbreviation 'Gb/s' stand for?

• Gigabits per second

• Gigabytes per second

• Gigabits per series

• Gigabytes per series

Answer explanation

The abbreviation 'Gb/s' stands for Gigabits per second, indicating the data transfer rate in billions of bits per second.

What is the data transfer speed of USB 3.2 Gen 1x1 SuperSpeed USB?

• 2 x 10 Gbps

• 10 Gbps

• 5 Gbps

• 20 Gbps

Answer explanation

The data transfer speed of USB 3.2 Gen 1x1 SuperSpeed USB is 5 Gbps, as it falls under the SuperSpeed USB category.

Which USB standard deprecated some of the older terms used to describe the supported transfer rate?

• USB 3.2 Gen 2x2

• USB 3.2 Gen 2x1

• USB 3.2 Gen 1

• USB 3.2

Answer explanation

USB 3.2 deprecated older terms for transfer rates, simplifying the naming convention.

Which connector types are associated with USB 3.2 Gen 2x1 SuperSpeed USB 10 Gbps?

• USB-A, USB-C, USB Micro

• USB-C

• USB-A

• USB Micro

Answer explanation

The connector types associated with USB 3.2 Gen 2x1 SuperSpeed USB 10 Gbps are USB-A, USB-C, and USB Micro.

What is the duplex mode of devices connected via USB 2.0 HighSpeed standard?

• Full-duplex

• Half-duplex

• Simplex

• Quarter-duplex

Answer explanation

The correct duplex mode for devices connected via USB 2.0 HighSpeed standard is Half-duplex, allowing data transmission in both directions but not simultaneously.

What is the shape of the connector and port for a Type A USB as specified in USB 2.0 standards?

• Round with a flat top

• Flat rectangles

• Square with a beveled top

• Triangular

Answer explanation

The shape of the connector and port for a Type A USB as specified in USB 2.0 standards is flat rectangles, not round, square, or triangular.

Which USB connector type is described as being suitable for connection to large devices like printers?

• Type A

• Type B

• Type B Mini

• Type B Micro

Answer explanation

Type B USB connector is suitable for connection to large devices like printers.