Jason put in a recommendation that his company upgrade the SD cards used in the company smartphones from 32-GB SDHC A1 to 128-GB SDXC A2. What is the advantage of A2 cards over A1 cards?
D) A2 cards sustain faster IOPS than A1 cards.
A1 and A2 Application Performance Class ratings refer to the IOPS rating
of the card, with A2 cards offering better performance than A1. This matters for
smartphones with multiple apps running. SDHC and SDXC refer to the capacity
of a card’s storage.
What happens to bus speed and power usage when you plug multiple devices into a USB hub?
C) The bus speed decreases because all devices share the same total bandwidth; power usage increases.
Which cable is used to transfer information between two devices using a serial communication protocol?
B) Serial cable
A serial cable transfer information between two devices using a serial
communication protocol.
You take a tech call from a user who complains that she gets an error message, “Hub power exceeded,” when she plugs her new thumb drive into her USB keyboard’s external USB port. Worse, the device won’t work. What’s most likely the problem?
C) She plugged one too many devices into the USB hub.
Just like the error message said, the thumb drive drew too much power for the
hub to handle.
What is the fastest speed that Hi-Speed USB 2.0 can go?
D) 480 Mbps
Hi-Speed USB 2.0 has a theoretical maximum of 480 Mbps.
What is the maximum cable length for USB 2.0?
B) 5 meters
USB has a maximum cable length of 5 meters.
How many speakers are in a 5.1 setup?
C) Five speakers plus a subwoofer
A 5.1 setup has five speakers and one subwoofer.
Which multimedia device is used for Internet video communication, which allows people to interact over networks with both voice and video?
A) Webcam
A webcam allows people to interact over networks with both voice and video.
Which optical disc type offers the most capacity writing and rewriting data files?
B) BD-RE
BD-RE offers the highest rewritable capacity of the discs mentioned here.
Jack downloaded a video shared by a friend, ourfamilyholiday.avi. When he opens it in his media player software, he hears sound but gets no picture.
What’s the most likely problem and solution?
C) His computer lacks the proper video codec. He needs to update the codecs installed on his computer.
Most likely, Jack’s system lacks the video codec needed for the video portion of
the file. He needs to update the codecs on his machine.
Most USB peripherals already have a what?
C) Windows driver
Windows comes with drivers for many common USB devices.
Incorrect Answers:
A USB lock is an unpowered physical plug that secures open USB ports on a computer, not part of a USB peripheral.
There is no such thing as an HID interface.
USB devices come with USB connectors, not Lightning connectors.
Which is not a valid USB speed?
C) 1.1 Gbps
1.1 Gbps is not a valid USB speed.
Incorrect Answer:
USB 1.1 Full Speed runs at 12 Mbps.
USB 2.0 Hi Speed runs at 480 Mbps.
USB 3 and 3.1 Gen 1 run at 5 Gbps (SuperSpeed).
Which is not a valid Thunderbolt speed?
C) 30 Gbps
30 Gbps is not a valid Thunderbolt speed.
Incorrect Answers:
Thunderbolt 1 runs at 10 Gbps
Thunderbolt 2 runs at 20 Gbps
Thunderbolt 3 runs at 40 Gbps.
Each version of USB in a computer has its own what?
C) USB controller
Each version of USB in a computer has its own USB controller which is then connected to a USB hub. USB Type-B connectors connect to a downstream peripheral (such as a printer). A USB hub is a circuit or device with one or more upstream USB ports. Each version of USB does not have its own peripheral.
Which is a valid Compact Disc capacity?
A) 74 minutes
74 minutes is a valid CD capacity. The other values are not valid for CDs.
The term peripheral refers to both ______ and _______ devices.
A) input, output
Peripheral is a term used to describe any and all input and output devices that can be connected to a computer. Things like monitors and printers are peripherals that output data, while keyboards and webcams are peripherals that input data.
Videoconferencing software allows viewing of remote desktops through a feature known as _____________.
C) screen sharing
Screen sharing is a fantastic feature included in most video conferencing tools that allows us to view and sometimes interact with another user’s desktop. It is highly useful when someone needs to display and collaborate information with many users at once. The other terms are made up.
Modern GPUs are installed in a _____ slot, which enables high speed communication between the GPU, the CPU, and RAM.
D) PCIe
The Peripheral Component Interconnect Express (PCIe) slot enables high speed communication between GPUs, the CPU, and RAM. PCIe slots come in multiple size formats, known as lanes, and are denoted as x1, x4, x8, and x16 accordingly. A power supply unit (PSU) supplies power to the system. PCI is an older standard. AGP is a made-up term.
Author
dior
ID
362120
Card Set
Mike Myers_Chapter 10_Essential Peripherals
Description
Questions are from the end of the chapter, Udemy and TotalTester Online.
