Testout B.2.1 CompTIA A+ 220-1101 (Core 1) Domain 1: Mobile Devices practice exam
You are troubleshooting a malfunctioning notebook computer system. The user has indicated that the LCD screen suddenly became dark and difficult to read while they were downloading a large file through the wireless network while the system was plugged in at their desk. You have checked the system and determined that the backlight has stopped working. Which of the following are the MOST likely causes? (Select two.) Answer Malware was installed as part of the download that targeted the backlight circuitry. The cold cathode fluorescent lamp (CCFL) has burned out and needs to be replaced. The wireless network card is emitting radio signals that interfere with the backlight, causing it to stop functioning. The extended download placed high demands on the system DC power, causing the BIOS to shut off the backlight. The inverter in the LCD assembly has malfunctioned.
1. The cold cathode fluorescent lamp (CCFL) has burned out and needs to be replaced. 2. the inverter in the LCD assembly has malfunctioned.
Which feature makes it possible to close some notebook computers and still use the touchscreen? Answer 180-degree rotating touchscreen External touchscreen Dual display Removable touchscreen
180-degree rotating touchscreen
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? Answer A USB 3.0 hub A keyboard-video-mouse (KVM) switch A USB-to-RJ45 dongle A laptop docking station
A laptop docking station
Which of the following is true of modern LCD monitors in regards to backlighting? Answer LCD monitors have small cells containing electrically charged ionized gas that do not need backlighting. LEDs are used to backlight the screen. Cold cathode florescent (CCFL) is used for backlighting. Red, green, and blue light provides the least expensive type of backlighting technology.
Cold cathode florescent (CCFL) is used for backlighting.
You have just set up a food truck business, and you need to find a device that allows you to accept credit card and debit card payments through your smartphone. Which of the following devices do you need? Answer Docking station Credit card reader Port replicator Bluetooth
Credit card reader
You are in charge of putting together the display design for a new conference center at your organization. The conference center will be in a large auditorium with 500 or more seats. Which of the following technologies will provide a large display for such a group and also provide very high resolutions? Answer DLP projector OLED display panel LCD display panel LCD projector
DLP projector
Which of the following input devices uses a stylus? Answer Touchscreen Touchpad Digitizer Trackpoint
Digitizer
Which of the following medical devices utilize Bluetooth or Wi-Fi technology to communicate with a mobile phone? (Select two.) Answer Trackpad Fingertip EKG CGM USB-C MicroSD
Fingertip EKG CGM
While traveling in a car, a user who has an unlimited data plan on a smartphone opens a wireless connection to share the internet with other passengers. Which of the following connection types is the user MOST likely using? Answer Lightning NFC MicroUSB Hotspot
Hotspot
You are sitting in a coffee shop with your laptop computer and have connected to the internet through an unrestricted Wi-Fi connection. What is this type of Wi-Fi connection called? Answer Bluetooth 802.11 standard Wireless fidelity Hotspot
Hotspot A hotspot is a term used to describe an area where users have internet access through an unrestricted Wi-Fi connection. Wireless fidelity is the full term for Wi-Fi. This term does not describe an area where users have unrestricted Wi-Fi access. While Bluetooth can be used to connect devices wirelessly, it requires a manual connection configuration and does not utilize Wi-Fi technology, which is associated with hotspots. The 802.11 standard is a set of specifications for wireless local area networks (WLANs) that is utilized by Wi-Fi technology. This standard does not define an area where users have unrestricted Wi-Fi access.
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? Answer LCD display with IPS panel. LCD display with TN panel. OLED display with wide-angle viewing. Plasma display with no motion blur.
LCD display with TN panel. 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.
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? Answer Tethering Virtual private network Hotspot connection Mutual authentication
Mutual authentication
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? Answer VA TN IPS OLED
OLED
As a technician in a computer repair shop, you have determined that the processor in a laptop needs to be replaced with one with a faster processing speed. However, when you remove the keyboard to expose the processor, you notice that the processor is soldered onto the motherboard. Which of the following is the BEST solution for replacing the processor? Answer Replace the motherboard with a faster processor. Unsolder the processor and solder a new one into the motherboard. Replace the entire laptop with one that has the processor needed. Upgrade the memory in the laptop.
Replace the motherboard with a faster processor.
Which of the following are advantages of using an OEM replacement LCD display? (Select two.) Answer OEM parts are designed to be used as generic replacement parts. The LCD display is guaranteed to work as a replacement. The price of the LCD display replacement is equal to non-OEM parts. The OEM LCD part is better quality than a non-OEM part. The LCD display is the same quality as the screen you are replacing.
The LCD display is guaranteed to work as a replacement. The LCD display is the same quality as the screen you are replacing.
A technician is tasked with replacing an internal laptop hard drive. Which of the following hard drive standards is of MOST concern when selecting a replacement that is compatible with the laptop? Answer The hard drive's storage capacity The hard drive's read and write speeds The hard drive's minimum voltage requirements The hard drive's form factor
The hard drive's form factor For laptops, the hard drive's form factor is very important. Most laptop's use either the 1.8 inch or 2.5 inch form factor standard. Most hard drives have the same voltage requirements. The storage capacity may drive up the cost of a hard drive, but the capacity usually remains the same whether the hard drive is compatible with a laptop or not. The read and write speeds may drive up the cost of a hard drive, but they don't usually change based on whether the hard drive is compatible with a laptop or not.
Which of the following is considered a computer input device? Answer Hard disk Touchscreen RAM Projector
Touchscreen
You've just purchased an Ethernet adapter for your Android tablet. Which of the following USB connector types would you MOST likely use to plug in to the adapter? Answer USB-A connector USB-B connector USB-C connector Serial connector
USB-C connector
A technician is tasked with configuring a mobile device to connect securely to the company network when the device is used at off-site locations where only internet connectivity is available. Which of the following should the technician configure? Answer Bluetooth VPN IMAP Hotspot
VPN IMAP (Internet Message Access Protocol) is an email protocol that can be used to synchronize email between multiple email clients on multiple devices. Bluetooth is a technology that wirelessly connects two devices in close proximity hotspot is created on a mobile phone to supply internet connectivity to multiple devices
