3.6 CQ Flashcards
What does a KVM do?
A. Connects a computer to Bluetooth-enabled devices
B. Allows multiple users to share a single computer
C. Networks multiple computers together
D. Connects multiple computers to save resources
D. A KVM connects multiple computers to a single keyboard, mouse, and monitor. This way, fewer resources in the way of peripherals (input/output devices) are necessary to use the computers.
Which of the following are considered both input and output devices?
A. Keyboard, mouse, touchpad
B. Smart card reader, motion sensor, biometric device
C. Printer, speakers
D. Smart TV, touchscreen, KVM, headsets
D. Smart TVs, touchscreens, KVMs, and headsets are considered both input and output devices. Keyboards, mice, touchpads, smart card readers, motion sensors, and biometric devices are considered input devices. Printers and speakers are considered output devices.
Which of the following devices can be used to perform combination shortcuts?
A. Keyboard
B. Mouse
C. Printer
D. KVM
A. A keyboard can be used to perform combination shortcuts. An example of a shortcut key is Ctrl+P, which initiates a print job within an application. While a KVM will have a keyboard connected to it, it’s at the keyboard that you perform the shortcut operation.
Which of the following incorporate the concept of resolution? (Select all that apply.)
A. Keyboard
B. Mouse
C. Printer
D. Signature reader
E. LED display
F. Speakers
B, C, and E. The mouse, printer, and LED display all deal with resolution. A mouse’s sensitivity is rated in DPI; for example, 800 DPI is a low resolution for mice. A printer will commonly print out documents at the resolution 600 DPI (more on that in Chapter 15). A monitor will commonly have a resolution of 1920 × 1080 (or greater!).
Which of the following terms describes how the light output from a video projector is measured?
A. IPS
B. CCFL
C. Lumens
D. OLED
C . A video projector’s light output is measured in lumens. In-plane switching (IPS) technology allows for a wider viewing angle. Some LCDs use a cold cathode fluorescent lamp (CCFL) as the lighting source instead of LEDs. OLED stands for organic light-emitting diode—that’s the lighting material used in the display.
