CSIS 151 practice
Mobile devices can connect to the internet and other devices using a variety of connection types. Drag each connection type on the left to the appropriate description on the right.
The following are the listed mobile device connection types with their appropriate descriptions: Hotspot - a physical location where you can obtain wireless internet access using a wireless local area network (WLAN) over a router that is connected to an internet service provider. Tethering - a means for connecting one device to another. In the context of mobile phones and tablet computers, tethering allows the sharing of the internet connection from a phone or tablet with other devices, like laptops. Mobile VPN - a mechanism that provides mobile devices with access to network resources and software applications on their home network (when the devices connect using other wireless or wired networks). NFC - a type of connector that is used to emulate cryptographic smart card functionalities for RFID tags or memory cards. Bluetooth - a wireless technology standard for exchanging data over short distances from fixed and mobile devices and for building personal area networks (PANs). Bluetooth can connect several devices, overcoming the problems of synchronization.
A sales person typically carries a laptop computer to several off-site customer meetings each day, but needs the flexibility to quickly attach other peripherals and charge the laptop battery while at their office desk. Which of the following laptop feature BEST meets these requirements? A USB 3.0 hub A laptop docking station A keyboard-video-mouse (KVM) switch A USB-to-RJ45 dongle
A laptop docking station A docking station can quickly connect a laptop to an external monitor, keyboard, and other peripherals, as well as charge the laptop battery. A KVM switch allows several computers to connect to a single monitor, keyboard, and mouse. A USB hub can connect the laptop to several peripherals, but would not charge the laptop battery. A USB-to-RJ45 dongle would only connect the laptop to a wired network.
You have a mobile device that provides a touchscreen, but does not have touchscreen technology embedded into the display. Which of the following mobile device display components provides the touchscreen functionality? LCD Inverter Digitizer OLED
Digitizer If a touchscreen is not embedded into the display during manufacturing, a thin glass digitizer is placed in front of the display to read touch events. An inverter converts DC power to AC power for the screen. OLED and LCD are types of mobile device displays. They do not provide touchscreen technology.
Which of the following mobile device components are often installed under the bezel of a mobile device display? (Select three.) Microphone Webcam Wi-Fi antenna wires OLED Touchscreen digitizer OEM Inverter
Microphone Webcam Wi-Fi antenna wires Manufacturers often use the display bezel to run wires for the Wi-Fi antenna or to integrate a webcam or microphone.
Which type of interface is typically used for internal wireless networking cards in laptops? Mini-PCI PCI FireWire ExpressCard USB
Mini-PCI interface Most internal wireless network cards in laptops connect using a mini-PCI interface. PCI is typically used in desktop computers. USB, FireWire, and ExpressCard are external buses for external devices.
You have subscribed to a cloud-based service to synchronize data between your mobile device and your PC. Before allowing the data to be synchronized, this service uses a process where the cloud service and the client on the mobile device verify each other's security certificates. What is this process called? Mutual authentication Hotspot connection Virtual private network Tethering
Mutual authentication Mutual authentication is a security feature in which a client process must prove its identity to a server, and the server must prove its identity to the client before any application traffic is sent over the client-to-server connection.
Which of the following is an extra button or knob on a laptop keyboard that moves the mouse cursor? Pointing stick Digitizer Touchpad ExpressCard
Pointing stick Pointing sticks (also called trackpoints) are small knobs in the center of the keyboard. Pushing on this knob moves the cursor. The touchpad is located below the keyboard. Moving your finger across the pad moves the mouse. You can also tap the touchpad to click the mouse. A digitizer pad is used in tablet PCs to receive input. Input is written onto the pad with a stylus pen, and then those motions are transferred into data that is processed by the system. An ExpressCard is an expansion card for laptops.
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? Twisted nematic (TN) Organic light-emitting diode (OLED) In-plane switching (IPS) Vertical alignment (VA)
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.
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? Bar code reader Scanner Trackball Touch screen
Bar code reader Installing a bar code reader will allow you to take inventory at a retail store by scanning the UPC symbols on products. A scanner is used to scan documents. A touch screen is an interactive monitor for a computer. A trackball is a type of mouse.
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? LCD display with IPS panel. LCD display with TN panel. Plasma display with no motion blur. OLED display with wide-angle viewing.
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.
A user opens a help desk ticket to replace a laptop keyboard. The user reports that the cursor randomly moves when typing, causing them to make frequent typing corrections. The problem does not occur when the laptop is attached to a docking station and an external keyboard is used. You want to find a more affordable solution than replacing the keyboard. Which of the following actions BEST mitigates this problem? Use the special function key to disable the touchpad when the laptop keyboard is used. Lower the screen resolution so that mouse movements are less granular. Increase the screen resolution so that mouse movements are more granular. Decrease the operating system's mouse speed setting.
Use the special function key to disable the touchpad when the laptop keyboard is used. The random cursor movements are caused by the user interacting with the touchpad. Using the special function keys to disable the touchpad will remedy the unwanted interactions. The screen resolution does not affect cursor movements, typing interactions, or touchpad interactions. The mouse speed settings do not affect cursor movements, typing interactions, or touchpad interactions.
