Chapter 3: Peripherals, Cables, and Connectors Flashcards
Which of the following could be used with an analog monitor? (Choose two.)
HDMI
DVI‐A
DVI‐D
DisplayPort
VGA
DVI‐A and VGA
Analog monitors require an analog signal. VGA is an analog video standard and will work. DVI‐A is also analog. (DVI‐I would work as well.) HDMI, DVI‐D, and DisplayPort are all digital standards.
You are attaching an external hard drive to a computer with USB 2.0 ports. The user is concerned about data transfer speed. What is the maximum speed of USB 2.0?
480 Mbps
5 Gbps
10 Gbps
20 Gbps
480 Mbps
USB 2.0 has a maximum speed of 480 Mbps. USB 3.0 is 5 Gbps, USB 3.1 is 10 Gbps, USB 3.2 is 20 Gbps, and USB4 is up to 40 Gbps.
You got a new desktop computer for a designer at your company. On the front panel is a rectangular yellow USB port. What does that mean?
It’s USB 2.0.
It’s USB 3.0.
It’s a port capable of charging devices even with the system powered off.
It’s a port to be used with USB‐C compatible devices.
It’s a port capable of charging devices even with the system powered off.
A yellow USB port is an “always on” charging port. It could be either USB 2 or USB 3. USB‐C connectors are oval in shape vs. the older rectangular USB connectors.
You are installing a replacement monitor on a desktop computer. Which of the following is true regarding a monitor’s refresh rate?
As long as the graphics adapter can refresh the image at a particular rate, the attached monitor can accommodate that refresh rate.
The refresh rate is normally expressed in MHz.
The refresh rate is normally selected by using the controls on the front panel of the monitor.
As you lower the resolution, the maximum refresh rate allowed tends to increase.
As you lower the resolution, the maximum refresh rate allowed tends to increase.
As you lower the resolution, the maximum refresh rate allowed tends to increase. The refresh rate is most often expressed in cycles per second (Hz), not millions of cycles per second (MHz). You must usually select the refresh rate that you want from the display settings dialog boxes, not through the monitor’s built‐in menu system, although the monitor can often tell you the refresh rate that you’re using. Finally, both the monitor and adapter must agree on the refresh rate you select. If either device does not support a particular refresh rate, such a rate cannot be used.
Which of the following connector types is typically not associated with hard drive use?
USB‐C
eSATA
DB‐9
SCSI
DB‐9
DB‐9 connectors are most often used with serial cables and are not associated with hard drives. USB‐C, eSATA, and SCSI are examples of connectors used with hard drives.
The company photographer is interested in buying a new digital camera. He wants to be able to plug it directly into his laptop to transfer pictures for editing. What type of connector will most likely be on his camera?
Mini‐USB
Thunderbolt
Molex
Lightning
Mini‐USB
For smaller electronic devices such as cameras, micro‐USB and mini‐USB connectors are common. Thunderbolt is primarily used for video. Molex is a power connector. Lightning is the Apple proprietary connector.
You are installing a new video card that has an HDMI port. Which of the following is true about HDMI cables? (Choose all that apply.)
They can transmit analog or digital signals.
They can transmit audio as well as video.
They are not used to connect to projectors.
They can use HDMI or mini‐HDMI connectors.
They can transmit audio as well as video.
They can use HDMI or mini‐HDMI connectors.
HDMI cables transmit digital video and audio signals. They can be used to connect to projectors or monitors. HDMI cables can have standard HDMI connectors, mini‐HDMI connectors, or micro‐HDMI connectors.
Which of the following display interfaces is equivalent to DisplayPort with PCIe added in?
Thunderbolt
HDMI
DVI
VGA
Thunderbolt
Intel and Apple collaborated on Thunderbolt to add PCIe to VESA’s DisplayPort and to make the resulting interface smaller and less expensive to connect. HDMI, DVI, and VGA are not equivalent to DisplayPort with PCIe added in.
Which two of the following standards use the same connector? (Choose two.)
eSATA
Thunderbolt 3
USB4
USB 2.0
Mini‐USB
Thunderbolt 3 and USB4
USB4 is based on the Thunderbolt 3 specifications, and both natively use USB‐C connectors.
How do you connect a DVI‐A interface on a peripheral to a DVI‐D interface on the computer?
With a DVI‐I cable.
With a cable that is terminated on one end with a DVI‐A connector and on the other end with a DVD‐D connector.
You wouldn’t interconnect those two interfaces.
With a standard DVI cable.
You wouldn’t interconnect those two interfaces.
Such a connection should not be made. DVI‐I cables act like universal cables; they can connect two DVI‐A interfaces or two DVI‐D interfaces with adapters. Natively, they are used to connect two DVI‐I interfaces, both of which are configured as either analog or digital. They are unable to convert the analog signal to a digital one, however. Analog and digital DVI interfaces are too disparate to interconnect.
A technician says he needs to provide power to an older IDE hard drive and a DVD‐ROM in a desktop. The computer now has a new fully modular power supply, and the technician wants to know what type of power connectors he should use. What do you tell him?
SATA
SCSI
Serial
Molex
Molex
A Molex connector is a power connector for IDE (PATA) storage devices. This includes hard drives and optical drives.
Which of the following connectors is oval shaped?
Micro‐USB
Mini‐USB
Thunderbolt 2
Thunderbolt 3
Thunderbolt 3
Thunderbolt 3 uses the oval‐shaped USB‐C connector. Thunderbolt 2 used a proprietary connector that was more of a square. Micro‐USB and mini‐USB connectors look more like trapezoids.
Which of the following connector types are capable of conducting power and transmitting data? (Choose all that apply.)
Lightning
Molex
USB‐C
DB‐9
Micro‐USB
Lightning and USB‐C and Micro‐USB
USB cables and eSATA cables can transmit power and data. You will find Lightning, USB‐C, and micro‐USB connectors on the ends of USB cables. A Molex connector is power‐only. A DB‐9 is for serial cables and is data‐only.
Which of the following statements is true about eSATA cables and connectors?
eSATA cables provide power and data to devices.
eSATA connectors are smaller than USB‐C connectors.
eSATA is faster than USB4 and Thunderbolt 3.
eSATA maximum throughput is 6 Gbps.
eSATA maximum throughput is 6 Gbps.
The eSATA standards limit throughput to 6 Gbps, which is much slower than USB4 and Thunderbolt 3, both of which can get to 40 Gbps. Standard eSATA cables do not provide power, although there are versions of eSATA that do include power. The connectors are larger than USB‐C connectors.
Which of the following is not an example of a connector for a standard peripheral input device?
1/8” jack
Molex
D‐sub
USB
Molex
Peripherals most often use USB today, but they can also use D‐sub connectors (rarely), and audio devices such as microphones and speakers use 1/8” jacks. Molex connectors are power connectors for PATA hard drives and optical drives.
You are asked to hook up a projector in a classroom. What type of cable are you most likely to need?
USB Type A
eSATA
HDMI
DB‐9
HDMI
A projector uses a standard video cable. In this case, HDMI is the most likely choice. eSATA is for hard drives, and DB‐9 is a slow serial cable. It’s possible that the projector has a USB interface, but the best selection is HDMI.
A user with an iPhone 12 needs to charge her device and asks you to bring a cable. Which of the following connector types should you ensure that the cable has?
Thunderbolt
Lightning
Mini‐USB
Micro‐USB
Lightning
Starting with the iPhone 5, Apple products use the proprietary Lightning connector for charging and connecting peripherals. Thunderbolt connectors are on MacBooks for peripherals. iPhones do not have built‐in mini‐ or micro‐USB connectors.
Which of the following types of cables will transfer data at the slowest rate?
USB4
Serial
Thunderbolt 3
HDMI
Serial
Classic serial ports and serial cables have the slowest data transmission speeds of any cable discussed in this chapter.
What is the maximum data transfer rate of USB High Speed?
10 Gbps
5 Gbps
480 Mbps
12 Mbps
480 Mbps
Full Speed USB is 12 Mbps. High Speed is 480 Mbps. SuperSpeed runs at 5 Gbps and SuperSpeed+ at 10 Gbps.
VGA cables use what type of signal between the adapter and monitor?
Digital
Analog
Composite
Compressed
Analog
VGA signals are analog, uncompressed, component signals that carry all of the video information for all three components of the original RGB signal. VGA signals are not digital, composite, or compressed.
