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A variety of troubleshooting scenarios related to hardware and network problems that it professionals may encounter. It provides step-by-step guidance on how to diagnose and resolve issues with monitors, power supplies, ram, wireless connectivity, cloud services, and more. Structured as a series of multiple-choice questions, each with a corresponding answer that explains the appropriate troubleshooting approach. By studying this document, readers can develop their problem-solving skills and gain a better understanding of common hardware and network challenges faced in the it industry. The content is suitable for both novice and experienced technicians, as it covers a wide range of topics and scenarios that are relevant to various levels of it support.
Typology: Exams
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A technician powers on a PC and its monitor and sees the following error message: No input signal detected - The display lights on the computer are on. Which of the following is a possible solution? A. Changing the BIOS settings B. Changing the connector setting on the monitor C. Checking the power plug on the monitor D. Checking the power plug on the PC
B. Changing the connector setting on the monitor
Which of the following components enables the input on a mobile device's touch screen? A. OLED B. Digitizer C. Inverter D. CMOS sensor
B. Digitizer
A technician unboxed a new computer, plugged it in to a UPS, and connected the requested peripherals. The computer lights and fans turn on, but the technician hears three loud, consecutive beeps during boot. Which of the following actions will remediate the issue? A. Replacing the power supply B. Replacing the UPS C. Changing the CMOS battery D. Reseating the RAM
D. Reseating the RAM
An IT manager discovered that hundreds of pages of printed materials are being recycled each day because the materials are left on the printer tray instead of being picked up by users. Which of the following would BEST prevent this waste? A. Send friendly reminders to not print unnecessarily. B. Enable duplex printing to reduce paper utilization. C. Bill each department for the excess material cost. D. Require a code or badge before releasing a print job.
D. Require a code or badge before releasing a print job.
An online retailer wants to save money and is considering migrating to the public cloud so capacity can be added during the peak shopping season and automatically removed when the peak is over. Which of the following BEST describes this aspect of cloud computing? A. Rapid elasticity B. Metered utilization C. Shared resources D. High availability
A. Rapid elasticity
A technician is receiving reports that the entire office sporadically loses network connectivity throughout the day. The technician determines the root cause to be EMI. Which of the following cable mediums would be the MOST cost effective without sacrificing system performance? A. Coaxial B. Shielded Cat 6 C. Plenum Cat 5e D. Multimode fiber
B. Shielded Cat 6
An organization maintains various record types, including health and criminal justice records. Which of the following cloud environments is the organization MOST likely to use to limit the attack surface? A. Public B. Hybrid C. Community D. Private
D. Private
Which of the following describes metered utilization of cloud resources? A. Resources provisioned instantly B. Payments made only for resources that are used C. Resources pooled to increase computing power D. Implementation of rapid elasticity
B. Payments made only for resources that are used
A user on a SOHO network is unable to watch online videos, even at 240 pixels. The technician runs ipconfig from the user's computer and records the following: Connection-specific DNS Suffix .: lan Link-local IPV6 Address.........: fe80::1585:7fb2:b05f:7102% IPv4 Address....................: 192.168.1.
B. Device interference
Which of the following cloud models maintains access, even when a local internet outage occurs? A. Private B. SaaS C. Community D. Public
A. Private
A user is researching hard drives to upgrade a PC and has decided to purchase a NVMe drive. Which of the following should the user confirm are available on the PC before making the purchase? (Choose two.) A. SATA B. M. C. PCIe. D. SAS E. SCSI F. DRAM
B. M. C. PCIe.
A laptop has been returned for a screen repair. The owner insists the screen is broken, but occasionally a faded image is able to be seen in very bright settings on the desktop. Which of the following steps should the repair technician take FIRST? A. Replace the graphics card. B. Replace the screen, as the customer insists. C. Recommend the usage of an external display instead. D. Ensure the backlight is functioning as expected.
D. Ensure the backlight is functioning as expected.
A laptop PC user is reporting issues with the hard drive. A filesystem check shows that all files are accessible and the filesystem is clean. After the check, the PC still issues a hard drive error message. Which of the following is the MOST likely cause of the error? A. S.M.A.R.T failure B. IOPS failure C. DIMM failure D. RAID failure
C. DIMM failure
A user reboots a machine. On rebooting, the user hears one beep, and then an error message is displayed. Which of the following are MOST likely causing this issue? (Choose two.) A. RAM module B. Graphics card C. CPU D. Boot order E. USB flash drive F. Power supply
D. Boot order E. USB flash drive
A salesperson is using a weather application on a mobile device. The application appears to be draining the device's battery very quickly. Which of the following is the BEST action for the salesperson to take in order to view weather forecasts while travelling? A. Enable the GPS service to ensure accurate location detection. B. Manually enter office locations in the weather application. C. Configure less frequent location checks using cellular location services. D. Use the offices' Wi-Fi IP addresses as the geolocation mechanism.
C. Configure less frequent location checks using cellular location services.
A technician replaced a motherboard on a server, and now the 64-bit hypervisor is not loading correctly. Which of the following needs to be enabled for the hypervisor to run? A. Hardware prefetcher B. Hyperthreading C. vPro D. VT-d
D. VT-d
A user's mobile phone gets really hot to the touch and does not retain a charge. The user also reports that the phone is very slow, especially while charging. Which of the following is MOST likely causing these symptoms? A. Broken charging port B. Digitizer failure C. CPU overheating D. Defective battery
D. Defective battery
A Microsoft Windows user is preparing to work in another country and needs to comply with corporate policy for data protection when copying
C. A misfeed D. Page orientation
D. Page orientation
A technician is tasked with installing additional RAM in a desktop computer. Which of the following types of RAM is MOST likely to be used? A. SODIMM B. DDR C. ECC D. VRAM
B. DDR
Vertical streaks are appearing on the output of a laser printer. Which of the following items is the MOST likely cause? A. Roller B. Drum C. Transfer belt D. Ribbon
B. Drum
A user is trying to play a DVD on a projector. The user can hear the audio; however, the projector is showing an error message that states: HDMI Blocked due to Copy Protection Which of the following is the MOST likely cause of the error? A. The HDMI cannot carry the signal from the DVD to the projector. B. The user needs to switch from HDMI to a cable standard such as DisplayPort. C. The projector does not support the necessary HDCP protocol. D. The user needs to enable copy-protected sources in the projector's settings.
C. The projector does not support the necessary HDCP protocol.
While implementing a non-carrier-grade wireless backhaul, a technician notices the current channel selection is extremely polluted with various RF signals. Upon performing a spectral analysis, the technician discovers a channel containing almost no RF pollution. Unfortunately, the technician is unable to select that channel. Which of the following is the MOST likely reason for this issue? A. The channel is reserved for licensed band use. B. The channel selection is defective; contact the manufacturer. C. The channel must be unlocked by the vendor. D. The device requires a firmware update to unlock the channel.
A. The channel is reserved for licensed band use.
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
B. Transfer roller
A technician is configuring a workstation to be used as a VM host. After installing the necessary software, the technician is unable to create any VMs. Which of the following actions should be performed? A. Disable the BIOS password. B. Enable TPM. C. Enable multithreading. D. Enable Fast Startup.
B. Enable TPM.
A user's computer is not receiving a network connection. The technician confirms that the connection seems to be down and looks for the user's port on the patch panel. The port and patch panel are not labeled. Which of the following network tools should the technician use to identify the port? A. Network tap B. Punchdown tool C. Toner probe D. Crimper
C. Toner probe
A user, who is attempting to give a presentation via a projector in a conference room, reports that the projector has video but no audio. Which of the following will MOST likely resolve the issue? A. Changing the input on the projector to VGA B. Changing the output on the PC to DVI C. Modifying the projector's refresh rate D. Utilizing an HDMI connection
D. Utilizing an HDMI connection
A customer reports that a computer is never able to reach more than a 100Mbps transfer data rate, even when using a Gigabit LAN card. While
A technician identified an issue on a workstation, obtained details from the user, and made a backup of the system. Which of the following should the technician do NEXT? A. Determine the next steps to resolve the issue and document it. B. Design a plan of action to resolve the issue and implement the solution. C. Document the findings, actions, and outcomes. D. Establish a theory of probable cause, researching internally or externally as needed.
D. Establish a theory of probable cause, researching internally or externally as needed.
An organization has some computers running macOS and some computers running Windows. The computers running macOS also need to run a piece of software that is only available on Windows. Which of the following BEST describes the solution for running Windows software on a computer running macOS? A. Operating system spoofing B. Remote software provisioning C. Indirect software implementation D. Cross-platform virtualization
D. Cross-platform virtualization
A field technician has been dispatched to a site with an internet outage. Upon arriving, the technician discovers that the POTS lines are not working as well. Which of the following technologies is the site MOST likely using? A. Fiber B. Cable C. DSL D. Satellite
C. DSL
An online retailer would like to add capacity to support increased sales. Additional servers have been installed. Which of the following should be used to ensure each new server is being properly utilized? A. Virtualization B. Clustering C. Load balancer D. Round-robin DNS
C. Load balancer
A user contacts the help desk in reference to a failing thumbprint scanner. The user states the scanner was functioning correctly yesterday. Which of the following troubleshooting steps should be performed FIRST after the ticket has been filed?
A. Inquire about possible changes. B. File a damage report. C. Requisition a new scanner. D. Attempt to clean the scanner.
A. Inquire about possible changes.
A company wants to use client-side virtualization for application testing. Which of the following configurations would BEST support this goal? A. CPU 2.5GHz - 4 cores 16GB DDR4 RAM 1TB SSD B. CPU 3.2GHz - 1 core 16GB DDR4 RAM 4TB SSD C. CPU 2.5GHz - 2 cores 16GB DDR4 RAM 4x 1TB HDD RAID 5 D. CPU 3.2GHz - 4 cores 8GB DDR4 RAM 500GB HDD
A. CPU 2.5GHz - 4 cores 16GB DDR4 RAM 1TB SSD
A user submitted a ticket to report an issue with a new printer that is no longer accepting new print jobs. The technician verifies the printer is on and notices the printer LCD screen has the following error message: Paper Jam, Jam in Fuser. Which of the following is the MOST efficient next step the technician should complete? A. Apply a maintenance kit to the printer. B. Check the printer paper path to locate any obstructions. C. Turn the printer on and off to see if the error clears. D. Replace the fuser.
B. Check the printer paper path to locate any obstructions.
Which of the following is a valid use for PaaS? A. Off-site backups B. An application development environment C. A virtual server installation and configuration model D. A web application for asset management
B. An application development environment
A company has a dot matrix printer that uses carbon paper. The company reports that the first page is printing too light, although the following pages are still legible. Which of the following MOST likely needs to be fixed? A. The print drum is worn and loose, causing the printing to be light in places. B. The ribbon is low on ink or missing and must be replaced to get proper output. C. The heating element has failed, and a new one needs to be installed for proper transfer. D. The wrong type of filament is loaded, preventing it from sticking correctly. E. The fuser assembly is not calibrated properly, causing it to impact the paper too hard.
B. The ribbon is low on ink or missing and must be replaced to get proper output.
An engineer is experiencing unexpected reboots on a graphics workstation when rendering complex 3-D models. The workstation is configured with a 115V power supply that is rated at 200W and connected to a UPS. The central processing unit contains 16 hyperthreaded cores, and a discrete graphics solution utilizing an 8- pin power connector is installed in a PCI Express x slot. Which of the following indicates where the technician should begin troubleshooting? A. The UPS, as 115V is insufficient for the configuration and should be increased to 220V B. The power supply, as 200W is insufficient when the GPU is heavily tasked C. The graphics card, as it is the component that triggers the unexpected reboots D. The motherboard, as only standard PCI slots should be used for high-end graphics cards, not PCI Express slots
B. The power supply, as 200W is insufficient when the GPU is heavily tasked
Which of the following technologies can allow multiple networks to traverse a switch? A. VLAN B. VRRP C. VPN D. DHCP
A. VLAN
An end user reports that the time and date on a desktop resets after shutdown, and subsequently, the device reboots. The next day, the desktop does not load the OS and is stuck at a black screen with the following message: Date/Time Not Set - Press F1 to Run Setup - Which of the following would be the BEST action to take next? A. Change the motherboard. B. Reseat the motherboard power connections. C. Replace the CMOS battery. D. Restore the BIOS to factory default settings.
C. Replace the CMOS battery.
A user reports that a PC occasionally fails to boot. The user reboots the PC, but the performance is degrading. The technician hears a strange, repetitive, ticking noise coming from the PC. Which of the following should the technician do FIRST? A. Try to extract data. B. Reseat the RAM modules. C. Inspect the fan. D. Check the CD tray.
A. Try to extract data.
A technician is upgrading a faulty motherboard that was ordered by an end user for an old, high- end desktop computer. However, the technician is unable to install the CPU into the socket. Upon closer inspection, the technician notices the pins on the CPU do not line up with the socket. Which of the following would be the best course of action for the technician to take NEXT? A. Try to set as many pins as possible. B. Install an adaptor to create a universal socket. C. Verity the socket type and manufacturer. D. Find a compatible motherboard for the CPU.
C. Verity the socket type and manufacturer.
A remote user reports connectivity issues with the local internet provider. Even after a technician reboots the modem supplied by the ISP, the issue persists. Which of the following would BEST establish the connection in minimal time? A. Radio frequency ISP B. Neighbor's WI-FI C. Mobile hotspot D. Fiber optic
C. Mobile hotspot
A company wants to give third-party developers access to the corporate network through desktop environments that the company can control. Which of the following can BEST achieve these requirements? A. Sandbox B. VDI C. Private cloud D. SaaS
B. VDI
A technician needs to fix a Cat 5 cable issue. The cable, which is connected to a network jack, fails when it is moved around. Which of the following items must the technician use to fix the issue? (Choose two.) A. Scissors B. Network tap C. Magnetized screwdriver D. Tone generator E. RJ45 connector F. Crimper
E. RJ45 connector F. Crimper
Recently, an organization received a number of spam emails that passed through the spam gateway. These emails contained generally the same information, but the sending domains were different. Which of the following solutions would BEST help mitigate the issue? A. Updating the keyword filtering B. Editing the sender policy framework C. Contacting the gateway vendor D. Verifying DMARC is enabled
A. Updating the keyword filtering
Several users who share a multifunction printer in an office have reported unintended, thin, vertical lines that cover the entire height of every page printed from the printer. Which of the following steps should a technician complete in order to MOST likely resolve this issue? A. Replace the printer paper with a new ream. B. Clear the print spooler on each computer. C. Reinstall the printer driver on each computer. D. Perform the drum-cleaning procedure.
D. Perform the drum-cleaning procedure.
Which of the following should the data center hardware technician implement to ensure maximum uptime for customers' virtual machines? A. Line conditioner B. AC voltage regulator C. Uninterruptible power supply D. Cloud storage backup
C. Uninterruptible power supply
A technician needs to improve a workstation's overall response time for frequently used applications and data without removing the current hard drive. Which of the following storage devices should the technician install to BEST accomplish the objective? A. M. B. SAS C. HDD D. SCSI
A. M.
A technician is setting up a device to use two-factor authentication. Which of the following meets this requirement? A. Thumbprint/retinal scan B. Password/password C. Password/thumbprint D. Password/PIN
C. Password/thumbprint
Which of the following BEST describes the main function of a web server? A. Storing files and controlling user access B. Setting up personal mailboxes and calendars C. Providing IP addresses and printing services D. Hosting home pages and business portals
D. Hosting home pages and business portals
A user brings an older laptop to the help desk and reports issues with the keyboard. Upon inspection, the technician does not see any external damage but notices that many keystrokes do not register in a word processor. The laptop works fine when the technician tests it with an external keyboard. Which of the following actions would MOST likely resolve the issue? A. Disable the sticky keys feature. B. Clean the keyboard. C. Reset the BIOS settings to default. D. Charge the laptop.
B. Clean the keyboard.
An administrator is configuring a corporate-owned smartphone for a new manager. The company requires the ability to wipe the phone's data remotely in the event of loss or theft and the capability to approve applications installed on the phone. Which of the following tools would BEST meet this need? A. Tethering to a corporate-owned laptop B. WPA2-Enterpise wireless C. Corporate enterprise email D. Mobile device management
D. Mobile device management
A user reports that printed receipts have black smudges over the entire image. The text is still present but is very dark and sometimes illegible. Which of the following are the MOST likely cause and solution for the printer issue? A. The ribbon is jammed and is rubbing on the paper. Clear the bad ribbon and feed it through properly. B. The printhead is too hot. Adjust the temperature down and retry printing.
C. Broken screen D. Malware
A. Digitizer issues
Which of the following options provides correct information about 2.4GHz and 5GHz wireless frequencies? (Choose two.) A. 2.4GHz has less interference. 5GHz transmits in lower speed. B. 2.4GHz penetrates solid objects more effectively. 5GHz provides faster data connections. C. 2.4GHz has a higher data rate. 5GHz has 23 channels. D. 2.4GHz has 11 channels. 5GHz has no data interference. E. 2.4GHz has a higher coverage area. 5GHz has higher bandwidth. F. 2.4GHz has a higher bandwidth. 5GHz has lower transmit power.
B. 2.4GHz penetrates solid objects more effectively. 5GHz provides faster data connections. E. 2.4GHz has a higher coverage area. 5GHz has higher bandwidth.
A technician is tasked with upgrading a laptop's RAM. Which of the following steps should the technician take FIRST? A. Confirm that both the current and new memory are from the same brand. B. Run a diagnostic test on the current memory. C. Verify the memory requirements of the motherboard. D. Connect an electrostatic discharge strap.
C. Verify the memory requirements of the motherboard.
A startup is looking to immediately expand its data center but does not have the personnel or space to manage everything internally. The organization has multiple small offices and remote users with large computational and storage- solution requirements. Funding is not an issue for the company. Which of the following can BEST accomplish the company's goals? A. SaaS B. IaaS C. ISP D. SDN
B. IaaS
A technician is configuring a new CAD workstation that has four large hard drives. The workstation will be used to edit large, critical files, so the storage configuration should be both fast and redundant. Which of the following RAID levels BEST meets these requirements? A. 0 B. 1 C. 5 D. 10
A technician receives a ticket that states a mobile payment device is having issues with its contactless payment feature. The device is not detecting payment options. Which of the following is the MOST likely cause of the issue? A. NFC B. Bluetooth C. Wi-Fi D. Lightning adapter
A. NFC
A technician is troubleshooting an old desktop system that randomly shows a Windows BSOD or powers off unexpectedly. All system temperatures are within normal limits. Which of the following should the technician do NEXT? A. Visually inspect the motherboard capacitors. B. Verify all case fans are operational. C. Check that the BIOS version supports the installed CPU. D. Compare the software requirements with the installed RAM.
A. Visually inspect the motherboard capacitors.
A user calls the help desk for assistance configuring an Android phone with a new NFC-enabled speaker that will be used for an upcoming conference call. The user was unable to direct the phone's audio to the NFC speaker. Which of the following sequences should the help desk technician walk the customer through to accomplish this task? A. Enable NFC on the speaker. Ensure the speaker is less than 33ft (10m) from the Android phone. On the phone's Bluetooth settings menu for Connected Devices, select Pair New Device. Tap to accept the connection to the speaker when the prompt is displayed on the phone's screen. B. Enable NFC and Bluetooth on the Android phone. From the Android phone's Bluetooth settings menu for Connected Devices, select the Previously Connected Devices option. Select a listed device that most closely matches the speaker. Tap to accept the connection to the speaker when the prompt is displayed on the phone's screen. C. Enable NFC and Bluetooth on the Android phone. Tap and hold the Android phone to the spot on the speaker where the NFC logo is displayed. Accept the connection to the speaker when the prompt is displayed on the phone's screen. D. Enable Wi-Fi on the speaker. Enable Wi-Fi on the Android phone. Tap and hold the Android phone to the spot on the speaker where the NFC logo is displayed. Accept the connection to the speaker when the prompt is displayed on the phone's screen.