4.2.5 USB Practice Questions

5 September 2022
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question
You plug a USB 2.0 external storage device into a USB 3.0 port on your computer. Which of the following statements is true regarding the device?
answer
The device will work, but will only transfer at USB 2.0 speeds. Explanation USB 3.0 ports are backwards compatible with all previous USB versions. However, they can only transfer as fast as the slowest version being used. This means that a USB 2.0 device connected to a USB 3.0 port will transfer data at USB 2.0 speeds. Devices only require an external power source if they require more than 500 mA or 900 mA of power (for USB 2.0 and USB 3.0, respectively).
Explanation: The device will function at USB 2.0 speeds.The device will function at USB 3.0 speeds.The device will not function.The device will function at USB 2.0 speeds because it is not compatible with USB 3.0.
question
Which of the following devices typically use a microUSB connector?
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Smartphones Digital cameras Explanation microUSB connectors are typically used by compact, portable electronic devices, such as smartphones, digital cameras, GPS devices, and some external storage peripherals. Printers and scanners typically use a Type-B connector. Some networking devices such as hubs and modems also use Type-B connectors.
Explanation: Some of the devices that typically use a microUSB connector are smartphones, tablets, digital cameras, and portable media players.
question
You need to connect a new USB scanner to the USB port on your computer. What should you do?
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Install the scanner drivers, then connect the scanner to the USB port and complete the Add a Device wizard when it pops up. Explanation To install USB devices, start by installing the driver. The connect the device to the USB port. The operating system will detect the device and configure it automatically. The driver is used to tell the operating system how to communicate with the device.
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Which is the most common interface for peripheral devices?
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USB Explanation USB is the most common interface for peripheral devices, such as printers, keyboards, and mice. FireWire is a common interface for digital video cameras and recorders, hard drives, and network adapters. Serial interfaces are common for modems, older printers, and networking devices. PATA interfaces are most common for internal HDDs and CD/DVD drives.
Explanation: There is no single answer to this question as it depends on the specific type of peripheral device in question. However, some of the most common interface standards for peripheral devices include USB (Universal Serial Bus), Thunderbolt, and HDMI (High-Definition Multimedia Interface).
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Which of the following standards provides for data transfer rates up to 480 Mbps with a maximum cable length of 5 meters?
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USB 2.0 Explanation USB 2.0 specifications allow for data transfer rates of 480 Mbps and cable lengths up to 5 meters. IEEE 1394 (also known as FireWire) provides for data transfers of up to 400 Mbps and a cable length of 4.5 meters. IEEE 1284 (parallel) has a data transfer maximum of 2 Mbps with a maximum cable length of 10 meters. RS-232 (serial) operates at relatively slow speeds but over longer distances.
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What is the maximum data transfer speed for USB 3.0 devices?
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5 Gbps Explanation USB 3.0 specifies a maximum transmission speed of up to 5 Gbit/s. USB 2.0 devices have a maximum data transfer speed of 480 Mbps. USB 1.0 devices have a maximum data transfer speed of 1.5 Mbps or 12 Mbps.
Explanation: The maximum data transfer speed for USB 3.0 devices is 5Gbps.
question
What type of USB 3.0 connector is shown here?
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Type-A Explanation The blue tab indicates that the connector is a USB 3.0 Type-A connector and capable of USB 3.0 speeds. USB 3.0 Type-A connectors are backwards compatible with all previous USB versions. The USB 3.0 Type-B connector is larger in size and designed to carry both data and power. Due to their increased size, USB 3.0 Type-B connectors cannot be plugged into older USB Type-B ports. However, USB 3.0 peripherals that use this port are able to accept older USB Type-B connectors. The USB 3.0 Micro-B connector is used by portable devices, such as compact external storage devices, digital cameras, or smartphones.
Explanation: The USB 3.0 connector shown in the picture is a Type A connector. This is the most common type of USB connector and is typically used for connecting devices to computers.
question
What type of USB 2.0 connector is shown here?
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MicroUSB Explanation The microUSB connector is designed for smartphones and tablet devices. microUSB connectors are approximately half the thickness of miniUSB connectors, making them more appropriate for smaller devices. The miniUSB connector is used by portable electronic devices, such as digital cameras and some portable storage devices. The Type-B is a square connector with two beveled corners. Type-B connectors are mostly used with printers. Some networking devices, such as hubs and modems, also use this connector. The Type-A is a rectangular connector that generally plugs directly into the computer or hub. Almost all USB cables have one Type-A connector on one of the ends.
Explanation: The USB 2.0 connector shown in the question is a Type B connector. This type of connector is typically used for devices such as printers or scanners.
question
1. USB 3.0 Type-A
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Connector 1 is a USB 3.0 Type-A connector. The blue tab indicates that the connector is a USB 3.0 Type-A connector and capable of USB 3.0 speeds. USB 3.0 Type-A connectors are backwards compatible with all previous USB versions.
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2. USB 3.0 Micro-B
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Connector 2 is a USB 3.0 Micro-B connector. The USB 3.0 Micro-B connector is used by portable devices, such as compact external storage devices, digital cameras, or smartphones.
Explanation: connectorThe USB 3.0 Micro-B connector is a small, rectangular connector that is used to connect certain types of electronic devices to computers. The connector is typically used to connect devices such as digital cameras, phones, and portable hard drives to computers. The Micro-B connector is not compatible with the older, larger USB 2.0 connectors.
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3. USB 3.0 Type-B
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Connector 3 is a USB 3.0 Type-B connector. The USB 3.0 Type-B connector is larger in size and designed to carry both data and power. Due to their increased size, USB 3.0 Type-B connectors cannot be plugged into USB Type-B ports. However, USB 3.0 peripherals that use this port are able to accept older USB Type-B connectors.
Explanation:connectorThe USB 3.0 Micro-B connector is a small, rectangular connector that is used to connect certain types of electronic devices to computers. The connector is typically used to connect devices such as digital cameras, phones, and portable hard drives to computers. The Micro-B connector is not compatible with the older, larger USB 2.0 connectors.
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4. USB 2.0 Type-A
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Connector 4 is a USB 2.0 Type-A rectangular connector that generally plugs directly into the computer or a hub. Almost all USB cables have one Type-A connector on one of the ends.
Explanation: connectors are physically compatible with both USB 3.0 Type-A and USB Type-B connectorsUSB 2.0 Type-A connectors are physically compatible with both USB 3.0 Type-A and USB Type-B connectors, but they only support data transfer speeds up to 480Mbps. USB 3.0 Type-A connectors are only compatible with other USB 3.0 Type-A connectors and support data transfer speeds up to 5Gbps. USB Type-B connectors are only compatible with other USB Type-B connectors and support data transfer speeds up to 12Mbps.
question
1. USB 2.0 Type-B
answer
Connector 1 is a USB 2.0 Type-B connector which is a square connector with two beveled corners. Type-B connectors are mostly used with printers. Some networking devices, such as hubs and modems, also use this connector.
Explanation: connectors are used for connecting devices such as printers, scanners, and external hard drives to a computer. The USB 2.0 Type-B connector is larger than the USB 2.0 Type-A connector and has a square shape.
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2. microUSB
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Connector 2 is a USB 2.0 microUSB connector which is designed for smartphones and tablet devices. microUSB connectors are approximately half the thickness of miniUSB connectors, making them more appropriate for smaller devices.
Explanation: MicroUSB is a small, rectangular connector used for charging and transferring data. It is found on many small electronic devices, including smartphones, tablets, and some digital cameras. MicroUSB is also often used on portable chargers and other devices that need to be charged via USB.
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3. miniUSB
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Connector 3 is a USB 2.0 miniUSB connector which is used by portable electronic devices, such as digital cameras and some portable storage devices.
Explanation: The miniUSB is a type of USB connector that is smaller in size than the standard USB connector. It is typically used on portable devices such as digital cameras and mobile phones.
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4. USB 3.0 Micro-B
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The USB 3.0 Micro-B connector is used by portable devices, such as compact external storage devices, digital cameras, or smartphones.
Explanation: cables are used for connecting USB 3.0 devices to each other, or to a USB 3.0 port on a computer. They are also used for charging some devices, such as smartphones. USB 3.0 Micro-B cables are thicker and have more wires than older USB cables, which allows them to transfer data faster.