B
Which of the following is true of laptop displays using LED technology?
A. A bad inverter will cause the backlight to fail
B. Works best in direct sunlight
C. Uses existing DC power to power the backlight
D. Does not require a separate backlight
What is (C.) Uses existing DC power to power the backlight.
LED (Light Emitting Diodes) use the existing DC power in the laptop to provide voltage to the LED backlights.
A technician is replacing a broken adapter card in a server. Which of the following would be the BEST way to prevent ESD during this replacement process?
A. Replace the adapter while the computer is outdoors
B. Use an anti-static strap
C. Decrease the humidity in the work area
D. Place the broken adapter in an anti-static bag
What is (B.) Use an anti-static strap.
ESD (Electrostatic Discharge) can damage components, so using an anti-static pad and strap will minimize the potential for ESD while working on a system.
A network printer has been pushed against the wall so often that the RJ45 connector on the network cable has become disconnected from the cable. Which of the following would you use to resolve this issue?
A. Punchdown tool
B. Loopback plug
C. Multimeter
D. Crimper
What is (D.) Crimper.
A cable crimper can be used with a fresh RJ45 connector to attach a new modular connector to the existing cable.
When Daniel starts his computer, the screen remains black and he hears a series of beeps. Which of these would be the MOST likely reason for this?
A. A memory module is bad
B. The operating system is corrupted
C. The monitor is turned off
D. A bootable USB drive is connected
What is (A.) A memory module is bad.
If a system finds a hardware fault prior to starting during the POST (Power On Self Test), the BIOS (Basic Input/Output System) can use beep codes to help the user diagnose the issue.
A system administrator is troubleshooting a macOS laptop and would like to view the configured volumes on the internal storage device. Which of the following would be the BEST choice for this information?
A. Disk Utility
B. diskpart
C. Ask Siri
D. Disk Management
What is (A.) Disk Utility.
The macOS Disk Utility can display volume information, create and erase volumes, and perform first aid on existing volumes.
Which of these memory types would commonly be used as system RAM in a laptop computer?
A. SSD
B. DIMM
C. USB
D. SO-DIMM
What is (D.) SO-DIMM.
SO-DIMM (Small Outline Dual In-line Memory Modules) are commonly used in laptops and other mobile devices because of their small form-factor.
A system administrator would like to move all user desktops to a cloud-based service. Which of the following would best describe this project?
A. File storage synchronization
B. SaaS
C. Off-site email
D. VDI
What is (D.) VDI.
VDI (Virtual Desktop Infrastructure) moves the entire desktop into the cloud. The end user device with with VDI using an environment similar to a remote desktop.
A client is complaining that their laptop's wireless network connection is no longer available. No new applications or software updates have been made to this computer, and the wireless network is working for everyone else. Which of the following would be the MOST likely reason for this issue?
A. The wireless antenna is disconnected
B. The user's wireless access has been revoked
C. The wireless function key is toggled off
D. The wireless adapter is faulty
What is (C.) The wireless function key is toggled off.
Most laptops include a physical switch or function key toggle to enable and disable the wireless adapter.
Which of these Windows 10 editions provide support for AppLocker?
A. Pro
B. Home
C. Starter
D. Enterprise
What is (D.) Enterprise.
AppLocker allows system administrators to manage application use in Windows. This feature is available in Windows 10 Enterprise and Education editions.
A technician is replacing the batteries in an older UPS. Which of the following would be the best way to dispose of the old batteries?
A. Contact the local building facilities department
B. Follow the instructions in the MSDS
C. Use the building trash services
D. Contact a third-party document shredding service
What is (B.) Follow the instructions in the MSDS.
The MSDS (Material Safety Data Sheets) provides details for the proper handling, storage, and disposal of components.
A system administrator has been asked to recover a RAID 0 array that has one bad hard drive. Which of the following would be the BEST path to follow?
A. Replace the bad drive and restore from backup
B. Replace the bad drive and resynchronize the array
C. Replace all drives and restore from backup
D. Replace the bad drive and rebuild the array
What is (A.) Replace the bad drive and restore from backup.
RAID 0 provides zero redundancy, so losing a drive requires all data to be recovered from a full backup.
A technician needs to view and control the desktop of a Windows computer in a different location. Which of the following would be the BEST choice for this requirement?
A. SSH
B. RDP
C. Telnet
D. SNMP
What is (B.) RDP.
RDP (Remote Desktop Protocol) is the built-in screen sharing protocol in Windows. If a different operating system was in use, a similar utility would be VNC (VIrtual Network Computing) that uses the RFB (Remote Frame Buffer) protocol.
A network administrator is using category 6 twisted pair cabling to connect a server to the network at 10 gigabits per second. Which of these would be the maximum supported distance for this link?
A. 2 meters
B. 100 meters
C. 55 meters
D. 10 meters
What is (C.) 55 meters.
Category 6 twisted pair cabling can support a maximum distance of 55 meters using the 10GBASE-T standard.
A client has purchased a new Windows 7 laptop, but the option to connect to the company's Active Directory domain is not available in the operating system options. Which of the following is installed on this laptop?
A. Windows 7 Professional
B. Windows 7 Ultimate
C. Windows 7 Enterprise
D. Windows 7 Home Premium
What is (D.) Windows 7 Home Premium.
Windows 7 Home Premium does not include integration with Windows Domains.
Which data type BEST describes this variable: name="Professor Messer"?
A. Floating point
B. Integer
C. Boolean
D. String
What is (D.) String.
A string data type is used to represent a group of letters, with spaces and numbers also allowed as string values.
An organization is evaluating a software package where the source code is freely available and the end user can compile their own executable. Which of the following would BEST describe this software?
A. Closed source
B. FOSS
C. PCI
D. GDPR
What is (B.) FOSS.
FOSS (Free and Open Source Software) is software that is freely available and includes the source code for review or modification. The end user can compile the source code and create their own executable for the software package.
A user in the marketing department would like to encrypt a single file on their Windows Desktop. Which of the following would be the BEST choice for this task?
A. BranchCache
B. EFS
C. BitLocker
D. AppLocker
What is (B.) EFS.
EFS (Encrypting File System) is a feature of NTFS that allows for the encryption of individual objects in the file system.
A system administrator has just upgraded the memory in a laptop computer. When starting the laptop, the memory shows the upgrade but the wireless network is no longer accessible. Which of the following would be the MOST likely reason for this issue?
A. The wireless antennas are disconnected from the adapter
B. The memory is not compatible with the wireless adapter
C. The wireless driver needs to be updated
D. A BIOS upgrade is required when upgrading memory
What is (A.) The wireless antennas are disconnected from the adapter.
When working inside of a laptop, it's easy to accidentally disconnect the small antenna wires connected to the wireless adapter.
An image has been shown on an LCD monitor for an extended period of time. After the image is changed, a faint outline of the previous image still appears on the screen. Which of these would be the BEST way to troubleshoot this image burn-in?
A. Display a white screen for an extended period
B. Disable hardware acceleration
C. Turn off the display and back on again
D. Disable advanced video features
What is (A.) Display a white screen for an extended period.
Burn in can sometimes be minimized or removed by displaying a completely white screen for an extended period.
The battery of a mobile phone has become swollen and has caused the display to become separated from the rest of the phone. Which of the following would be the BEST way to troubleshoot this issue?
A. Continue to use the phone normally until a replacement is obtained
B. Continue to text message, but without any emojis
C. Use tape to hold the phone together until a replacement can be obtained
D. Move the phone to a safe area and replace the battery
What is (D.) Move the phone to a safe area and replace the battery.
A swollen battery indicates a buildup of gas that is being contained by the battery packet. The best option is to stop using the device immediately and properly dispose of the faulty battery.
A medical imaging company maintains a large database of customer information. Which of the following should be used to ensure that the company meets all applicable laws regarding the storage of this information?
A. Acceptable Use Policy
B. End User License Agreement
C. Service Level Agreement
D. Regulatory and compliance policy
What is (D.) Regulatory and compliance policy.
It's important for companies to understand the legal requirements associated with data, and many organizations will have formal policies that determine how the organization should handle this information.
When a Windows system boots, a message in the system tray shows "Limited or No connectivity." Which of the following would be the MOST likely reason for this message?
A. An IP address conflict has been found on the network
B. The DHCP server is down
C. The loopback adapter has been disabled
D. A wireless network is using weak encryption
What is (B.) The DHCP server is down.
An unavailable DHCP server would cause a system to automatically assign an APIPA address, which also means that connectivity will be limited to the local IP subnet.
A user in the Accounting department is reporting that print jobs sent from all department workstations to a networked laser printer are garbled and unreadable. Which of the following would be the FIRST troubleshooting task for resolving this issue?
A. Upgrade the print drivers on the Accounting workstations
B. Perform a scheduled maintenance on the printer
C. Print a test page from the printer front panel
D. Replace the printer's toner cartridge
What is (C.) Print a test page from the printer front panel.
When a printing problem affects many computers at one time, it's useful to know if the issue is with the workstations or the printer itself. One way to check the printing functionality is to run an internal printer self-test from the console of the printer. If the output is bad, then the issue is related to the printer hardware. If the output looks good, then the issue is occurring elsewhere.
A user would like to validate the safety of a mobile app before it is installed onto their phone. Which of the following would provide this information?
A. Digital signature of the app
B. App scanner results
C. App developer web site
D. Mobile device logs
What is (B.) App scanner results.
App scanners can provide a historical view of application usage and provide information regarding the safety of a mobile app.
A company is building a payment and inventory application on a cloud service using a set of predefined modules. The application can be customized by stacking the modules together into the desired order. Which of the following would best describe this model?
A. PaaS
B. LEGO
C. IaaS
D. SaaS
What is (A.) PaaS.
A PaaS (Platform as a Service) provides the advantages of a cloud-based architecture with flexibility of an existing platform. Applications can be quickly developed using an existing platform and the resulting applications can be quickly deployed to the cloud-based service.