Eye Can C:/ You
Input Devices
My Mobile Home
100
Which of the following devices would you add to a computer if you needed to take inventory at a retail store by scanning the UPC symbols on products?
a Touch screen
b Bar code reader
c Trackball
d Scanner
b Bar code reader
100
Which of the following is considered a computer input device?
Touchscreen
RAM
Projector
Hard disk
a. Touchscreen
100
Which of the following mobile connection types can enable other mobile devices to connect to the internet?
a. USB
b. NFC
c. Bluetooth
d. Hotspot
d. Hotspot
200
You are putting together a system for a graphic artist and need to make sure that you find a display that meets their needs. The display needs to have very good color reproduction quality and viewing angles. The display also needs to have proper cooling and be power-efficient.
Which of the following display types will MOST likely meet these needs?
a. OLED display with wide-angle viewing.
b. Plasma display with no motion blur.
c. LCD display with TN panel.
d. LCD display with IPS panel.
d. LCD display with IPS Panel
LCD displays with IPS panels have the best color reproduction quality and viewing angles among LCDs.
TN panels have imperfect color reproduction due to the fact that only 6 bits per color can be displayed.
LCDs with IPS panels use far less power and run much cooler than plasma displays. They are more expensive than LCDs with TN panels, but are still more affordable than OLED displays.
200
Which computer function takes data through a series of procedures as defined by a set of instructions?
a. Output
b. Networking
c. Storage
d. Processing
d. Processing
200
Which of the following protocols can encrypt emails on a mobile device?
a. SMTP
b. IMAP
c. POP3
d. SSL
d. SSL
Explanation:
SSL, or Secure Sockets Layer, can encrypt emails on a mobile device.
IMAP and POP3 are email retrieval protocols.
SMTP is the protocol that is used to route emails through the internetwork.
300
You are putting together a gaming system and need to make sure that you find a display that meets your needs. The display needs to have a very good response time, and you would prefer that it be affordable and power-efficient.
Which of the following display types will MOST likely meet these needs?
a. LCD display with TN panel.
b. LCD display with IPS panel.
c. Plasma display with no motion blur.
d. OLED display with wide-angle viewing.
a. LCD display with TN panel
Explanation:
LCD displays with TN panels are the most common technology used by LCDs. TN panels have very good response times (1 to 5 ms) and refresh rates (60 to 144 Hz), so they are great for PC gaming. They are more affordable and have faster response times than LCDs with IPS panels, use far less power than a plasma display, and are far more affordable than OLED displays.
300
A user submitted a support ticket that states all of the printouts from a laser printer appear to have double images imposed on them. A review of past printer support tickets shows that a maintenance kit has not been installed in more than a year. Which of the following printer consumables is MOST likely causing the issue?
A. Separation pad
B. Transfer roller
C. Ink cartridge
D. Fuser Correct
B. Transfer Roller
The transfer roller inside a LaserJet printer is responsible for pulling toner from the cartridge drum and onto the paper. It uses opposing electrical charges to attract the toner particles
300
You have recently purchased a new, foldable smart phone.
Which of the following types of mobile device display technologies is MOST likely being used for the foldable display?
a. IPS
b. VA
c. OLED
d. TN
c. OLED
Explanation
OLED is taking over, and many devices that use LCD are transitioning to OLED. OLED is thinner and lighter than LCD and can be made flexible, allowing for the development of foldable smartphones.
TN (twisted nematic), VA (vertical alignment), and IPS (in-plane switching) are all types of LCD technologies. They do not allow flexible folding of a mobile device display.
400
You have recently been given an older laptop to use for performing basic tasks such as sending emails and editing documents.
However, when the display changes from one color to another, you notice that there is some distortion in the image.
Which of the following LCD technology types is MOST likely being used for the LCD display?
a. In-plane switching (IPS)
b. Organic light-emitting diode (OLED)
c. Vertical alignment (VA)
d. Twisted nematic (TN)
c. Vertical alignment
Explanation:
Vertical alignment (VA) produces a truer black and offers a wider viewing angle. However, this type of LCD display often suffers from distortion when transitioning colors.
Twisted nematic (TN) was used in early LCD displays. TN displays used low operating voltages, making their use with batteries possible. They are still used for monochrome alphanumeric displays and do not distort images.
IPS (in-plane switching) has a high response rate and is used in LCD displays, as this technology does not distort images when changing colors. IPS is the best choice for use on touchscreen displays.
Organic light-emitting diode (OLED) is a display technology that is gradually replacing LCD. OLED is not an LCD technology.
400
Which peripheral device is BEST for capturing a customer's signature when they check out at a convenience store or supermarket?
a. NFC device
b. DSP/ESP Module
c. Touchpad
d. Card reader
b. DSP/ESP Module
400
GAMBLE QUESTION
How Much do you want to wager on this question?
Explain EACH type of Malware:
1) Trojan Horse
2) Worm
3) Spyware
4) Ransome ware
5) Key Logger
12+ Types of Malware Explained with Examples (Complete List) (https://www.malwarefox.com/malware-types)