220-1201 practice questions
CompTIA · 220-1201 · 300 questions
Original practice questions for the CompTIA A+ Core 1 (V15) exam, covering every domain of the official exam objectives.
This course contains the use of artificial intelligence.
About the 220-1201 exam
- Questions
- Maximum of 90
- Passing score
- 675 on a scale of 100-900
- Format
- Multiple-choice and performance-based questions, 90 minutes
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Exam details published by the vendor, checked 7 November 2026. Vendors change fees and formats without notice — confirm on the vendor's own page before you book.
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Mobile Devices (13%) · 39 questions
- A visitor pays by tapping a phone on a terminal. No browser opens and no network name is chosen. Which feature does the tap use?
- A field laptop has no Wi-Fi of its own. It gets online by joining a Wi-Fi network the technician's phone creates from its cellular service. Which phone feature is that?
- After a screen replacement, a laptop's fingerprint reader does nothing. The small cable at the reader is unplugged. Which reconnection restores the reader?
- When a laptop is seated on a desk unit, it gains HDMI, USB, and Ethernet, and the laptop charges. Which accessory is that unit?
- A phone charges through a small reversible oval connector. The cable is not the flat Lightning plug used on older phones. Which connector is this?
- A city lets staff read corporate mail on a personal phone only when the screen lock and device encryption match city policy. Which control enforces that?
- A laptop joins Wi-Fi only when the lid is held at certain angles. The antenna wire at the hinge looks pinched. Which part should be reseated or replaced?
- After the display bezel was opened, a laptop camera shows a black image. The small cable at the camera module is unplugged. Which reconnection restores the camera?
- A phone is about to download a large system update on the cellular network, and the plan's monthly data cap is nearly used up. Wi-Fi is available. What should the user do?
- A tablet's screen is built to track a pen, and the artist needs the pen that screen expects. Which accessory is that?
- A laptop lost both Wi-Fi and Bluetooth after the wireless card was removed during a repair. The antenna leads are still off the card. Which action restores the radios?
- Two phones a few feet apart exchange a contact only after both users confirm a pairing code on the screen. Which connection is that?
- A user signs into the same cloud account on a new phone and expects the contacts from the old phone to appear. The old phone is not here. Which feature does that?
- A phone has no SIM tray. The carrier's profile is downloaded onto the phone. Which identity is that?
- A laptop's only storage bay holds a 2.5-inch SATA drive. The owner wants a larger solid-state drive in that same bay. Which part fits?
- A nurse wants a headset for phone calls with no cable between the headset and the phone. Which accessory fits?
- An older phone charges through a small flat connector that fits only one way. It is not the oval reversible plug and not the Lightning plug. Which connector is it?
- A company must remove its mail and apps from a personal phone without deleting the employee's photos. Which control does that?
- A map application needs a phone's outdoor location. Cellular data is turned off, and the map still shows the phone's position. Which feature provides that position?
- Several keys on a laptop do nothing after a spill that has already dried. The display, the disk, and the battery are fine. Which part should be replaced?
- After the display bezel was opened, a laptop microphone records silence. The small cable at the microphone is unplugged. Which reconnection restores it?
- A laptop has no camera, and the user needs video on calls. Which accessory adds the camera?
- An older camera charges with a flat USB plug that is thicker than micro-USB, fits only one way, and is not oval. Which connector is it?
- Indoors, a phone cannot see GPS satellites, yet a map still estimates its location from the mobile network. Which feature provides that estimate?
- A laptop's built-in speakers are silent. Headphones plugged into the headset jack play audio normally. Which part is failing?
- A laptop battery no longer lasts through a meeting. The service manual lists that battery as replaceable, and the rest of the laptop works. Which part should be replaced?
- A laptop's trackpad surface is cracked, and clicks on it do nothing. An external mouse works. Which part should be replaced?
- A small desk unit adds USB and video ports to a laptop. It does not charge the laptop and the laptop does not seat into it. Which accessory is that?
- After a laptop display is replaced, Wi-Fi is weak in every position. The antenna leads were never moved onto the new display. Which action restores the signal?
- Contacts added on a phone never appear on the user's laptop. Both devices use the same account, and contact sync on the phone is turned off. Which change makes the new contacts appear?
- A salesperson adds appointments on a phone and expects them on a laptop that signs into the same account. The laptop is not in the room. Which feature does that?
- A laptop is slow with many applications open, and it has an empty memory slot. The manual says the memory is upgradable. Which part should be installed?
- A laptop's badge reader, which uses near-field communication, does nothing after the palm rest was opened. The small cable at the reader is unplugged. Which reconnection restores it?
- A phone shares its cellular data connection with a laptop through a USB cable. No Wi-Fi network is created. Which feature is that?
- A laptop's built-in camera stays black. Its cable is seated, and a USB webcam on the same laptop works. Which part should be replaced?
- A new headset cannot be paired until the phone is made discoverable. Once the phone is discoverable, the headset appears and pairs. Which step was required?
- A Bluetooth headset works beside the phone and disconnects when the user walks to the far end of a large warehouse. Which limit explains the disconnect?
- Two phones stand in the same spot. One joins the newer cellular generation the tower is offering. The other phone's radio does not support that generation and stays on the older service. Which limit explains the second phone?
- A laptop's internal Wi-Fi is dead. The antenna leads are seated, and a USB Wi-Fi adapter on the same laptop works. Which part should be replaced?
Networking (23%) · 69 questions
- A laptop that should use DHCP shows 169.254.22.15. It can ping other 169.254 addresses on the same switch and cannot reach the internet. Which address is this?
- Neighboring networks crowd the 2.4 GHz band at an apartment. The laptop and the access point both support 5 GHz. Which change avoids that crowd for this laptop?
- A small office firewall must allow encrypted web sessions to a local server and must keep clear-text web traffic blocked. Which port should be permitted?
- Other mail servers must learn which host receives mail for the museum's domain. Which DNS record states that?
- Three clinics in one city share the carrier's metro fiber. They are not attached to one local switch. Which network type is that fiber link?
- A lab's firewall and its log server record the same event several minutes apart. Which service should both devices use so their clocks agree?
- A shop router should hide the PCs from the internet and translate their traffic. Which address plan belongs on the inside LAN?
- Handheld scanners at a market only support 2.4 GHz. Neighboring networks already occupy channels 1 and 6. Which channel avoids overlapping those neighbors?
- A ceiling access point needs power over its Ethernet cable. The closet switch does not supply that power, and an outlet is available in the ceiling. Which device should feed the access point?
- A badge printer must keep one address from DHCP and must still learn the gateway and DNS server from the scope. Which DHCP feature does that?
- A school wants student web traffic inspected and cached before it goes out to the internet. Which service does that job?
- A technician must find which port on a patch panel belongs to an unlabeled wall jack. Which tool puts a signal on that cable and finds it at the panel?
- A building network now includes thermostats and badge readers that are not PCs and that report in over the network. Which class of device is that?
- New desk phones need power from the closet switch, and the switch on the order supplies power on its data ports. Which feature is the buyer selecting?
- An administrator needs an encrypted command-line session to a server. Which port should the firewall permit for that session?
- Ordinary name lookups from a hotel PC are connectionless. Which port and transport should the firewall allow for those lookups?
- A technician is seating copper pairs into a keystone jack's insulation-displacement contacts. Which tool does that job?
- A technician crimps both ends of a new cable and needs to see whether each pin lands on the matching pin at the other end. Which tool shows that?
- A managed switch should learn which desk computer is on which port by using the hardware address burned into that computer's network adapter. Which address is that?
- The name print.artschool.example should follow whatever address files.artschool.example already has, rather than storing an address of its own. Which DNS record does that?
- Two departments share one switch, and each department must be its own broadcast domain. Which feature does that on the switch?
- A guide's phone and wireless headset talk only to each other, within a few feet, and to nothing else. Which network type is that link?
- Users must reach file shares on a server using the protocol Windows uses for those shares. Which port should the firewall permit?
- A closet switch must put ports into separate VLANs and must support port security. Which switch meets that requirement?
- A file server is given its address, mask, and gateway by typing them on the server. It never requests a lease. Which addressing is that?
- A house gets its internet from a provider that delivers the service on the same coaxial cable as the television signal. Which connection type is that?
- Two departments are on different subnets and must reach each other. The closet has only a switch. Which device should be added?
- A DHCP scope covers the whole subnet, including the address already configured on the router. The server must never lease that address. Which DHCP feature prevents the lease?
- Clients on a segment must reach a DHCP server so they can obtain addresses. Which port does that server use?
- A PC at 192.168.10.10 with mask 255.255.255.255 cannot reach 192.168.10.20, which is on the same switch. Which setting explains that?
- A firm's office in one country and its office in another country are connected by a carrier circuit. Which network type is that circuit?
- Mail servers at two companies hand messages to each other. Which port carries that server-to-server transfer?
- Firewalls and servers at a plant should send their log messages to one collector. Which service is that collector?
- A warehouse gate reads a tag on each pallet as it passes. The tag has no battery of its own. Which technology is the tag?
- A traveler on a hotel network must reach file servers on the office LAN, and the traffic must be protected across the internet. Which technology does that?
- A technician has stripped a twisted-pair cable and needs to fasten an RJ45 plug onto the end. Which tool does the fastening?
- A small office wants a device that enforces allow and deny rules between the office LAN and the internet. Which device does that?
- A server's name should resolve to its IPv6 address. Which DNS record stores that address?
- Every computer and printer in a small office connects to one switch in that same office. Which network type is that?
- A user wants mail to stay on the server and appear on a phone and a laptop. Which port does that retrieval protocol use?
- A PC can ping other hosts on its own subnet by address, and it cannot ping a host on the far side of the router. The default gateway field is blank. Which setting is missing?
- A technician wants to test a switch port by sending its transmit signal back into its receive side. Which tool does that?
- The internet provider's cable at a house is coaxial, and the office router needs Ethernet. Which device converts that provider handoff?
- A house gets internet on the telephone line, and the router needs Ethernet from that line. Which device converts the telephone-line service?
- A museum wants other mail servers to know which hosts are allowed to send mail for its domain. Which DNS record publishes that policy?
- A user wants a mail program to download messages onto one PC and remove them from the server. Which port does that retrieval protocol use?
- Several identical web servers should share incoming requests so no one server takes the whole crowd. Which service spreads those requests?
- A technician needs to remove the outer jacket of a twisted-pair cable without nicking the conductors, before a plug is crimped. Which tool does that?
- The 5 GHz band at a clinic is crowded. The laptops and the access point both support 6 GHz. Which change moves the laptops off that crowd?
- A cabin has no telephone line and no cable plant. A dish on the roof is its only internet path. Which connection type is the dish?
- Laptops in a classroom associate to an access point and use no Ethernet cable. Which network type is that?
- Workstations query a directory server for account information. Which port does that directory protocol use?
- Clients must upload files to a server that uses FTP. Which port is the FTP control connection?
- Switches and the firewall should check administrators against one directory before allowing them to sign in. Which service performs that check?
- A provider terminates a glass strand on an optical network terminal at the building, and that terminal feeds the router. Which connection type is the strand?
- A guest Wi-Fi scope runs out of addresses because visitors' leases last all day after the visitors leave. Which DHCP change returns addresses sooner?
- A PC has only an IPv6 address that begins with fe80, and it cannot reach the internet. Other PCs with routable addresses can. Which limitation is that?
- Servers reach their disk arrays over a dedicated network that carries only that storage traffic. Which network type is that?
- Inbound mail should be filtered for spam before it reaches users' mailboxes. Which service does that filtering?
- A technician must copy traffic from a live link so it can be monitored, without disconnecting that link. Which tool does that?
- A farm's internet arrives by radio from a provider's tower to an antenna on the barn, not from a satellite dish and not from a phone line. Which connection type is that?
- Cables from the wall jacks are punched down on a row of ports in the closet. Short cords from that row run to the switch. Which device is that row?
- An internal status page is served as ordinary unencrypted web traffic. Which port should a firewall permit for that page?
- A packet capture shows a laptop receiving its DHCP offer. Which port is the laptop using for that offer?
- An application stores structured records and answers queries against those records. Which server role is that?
- A plant network monitors pumps and valves and can send control commands to that equipment. Which system type is that?
- A small office wants one appliance that provides the firewall and the other security filtering, instead of a separate box for each function. Which appliance is that?
- A technician needs a graphical remote desktop session to a Windows PC. Which port does that session use?
- A department needs one place on the network where everyone opens the same shared folders. Which server provides that place?
Hardware (25%) · 75 questions
- A small-form-factor PC needs a motherboard smaller than microATX. Which form factor on a desktop board list fits that case?
- Pages from a laser printer smear when a finger touches the toner. A new toner cartridge did not stop the smear. Which maintenance part is failing?
- A nurses' station needs a monitor that stays readable from the side. Fast motion is not the priority. Which panel type fits?
- A school has four identical disks. The array must keep working after one disk fails, and it must keep more usable space than a two-disk mirror. Which RAID level fits?
- A desktop with a manual input selector was set for a 110-120 VAC office and then plugged into a 220-240 VAC circuit. It will not power on. Which setting should be checked first?
- A new copper run must link a PC to a switch. The shop standard is T568B, and both ends must use the same pair order. Which termination is correct?
- A copper run must cross the space above a drop ceiling that is used as an air return. Which cable rating belongs in that space?
- A courthouse technician enables the firmware control that will not start an operating system whose boot files fail a signature check. Which control is that?
- A hospital printer must hold each job until the nurse badges in at the device, so pages are not left in the output tray. Which feature is that?
- A laptop upgrade calls for more memory. The desktop DIMM in the kit will not enter the laptop slot. Which module should be ordered?
- A desktop build needs the fast gumstick drive that seats on the motherboard and uses NVMe. Which part is that?
- A file server must stay powered on while a technician pulls one power supply out. Which power design allows that?
- A copper run between a gatehouse and a barn will be buried in the ground. Which cable rating belongs in that trench?
- A technician removed a processor's heat sink. The old compound on the heat spreader is dry and cracked. What should be done before the sink goes back on?
- A receipt printer feeds paper and prints blank pages. It is a thermal printer, and the paper's coated side faces away from the heating element. Which fix belongs?
- A racing simulator needs the panel that responds fastest. Wide viewing angles are not the priority. Which panel type fits?
- A registrar has two disks and wants each one to hold a live copy of the other, so either disk can fail and the files remain. Which RAID level fits?
- A label printer has only a USB port. It is attached to one front-desk PC, and the other front-desk PCs need to print labels too. Which setup does that?
- A new fiber patch panel uses the small square connector with a latch, the size commonly paired on modern equipment. Which connector is that?
- A lab PC should stop casual users from changing the firmware boot order. Which control locks those firmware settings?
- A database server should detect and correct single-bit memory errors. Which memory feature does that?
- An older laptop uses a fluorescent backlight. The image is barely visible unless a flashlight is held against the panel, and the brightness setting is already at maximum. Which part is failing?
- A clinic printer must keep a record of who printed each job. Which printer feature provides that record?
- A desktop hard disk is not spinning. The technician checks the power-supply rail that feeds drive motors. Which rail is that?
- A fiber run between two buildings uses laser optics and is specified for a single path of light down the fiber. Which cable matches?
- A new graphics card requires more wattage than the desktop's power supply can provide. Which change lets the card run?
- A desktop must store cryptographic keys in a dedicated chip on the motherboard. Which component does that?
- An impact printer that prints multipart forms has gone faint. The pins still strike. Which maintenance restores the darkness?
- A video desk has four disks. The array should mirror and stripe, and it must keep working after one disk fails. Which RAID level fits?
- A photo desk needs a monitor that can show a wide range of colors. Motion and viewing angle are already acceptable on the current candidates. Which trait should decide the purchase?
- A presentation PC must send picture and sound to a television on a single cable. The television's input is HDMI. Which cable fits?
- A workstation cools the processor with a sealed loop of liquid and a radiator, instead of a tower of metal fins. Which cooling design is that?
- A school wants the lab printer to print on both sides of each sheet so it uses less paper. Which feature does that?
- A power supply's motherboard lead splits so it can plug into either a 20-pin or a 24-pin motherboard connector. Which lead is that?
- A records server has four disks. The array must keep working even if any two of those disks fail. Which RAID level fits?
- A full-size graphics card must be installed in the long motherboard slot that graphics cards are built to use. Which slot is that?
- A copper run must pass beside a large motor, and interference on the link is the concern. Which cable addresses that concern?
- A desktop's only internal drive bay is the wide 3.5-inch bay. A technician arrived with a laptop-sized disk. Which drive fits the bay?
- A desktop manual says to install two matched memory modules in the colored pair of slots so the memory path is wider. Which feature is that?
- Virtual machines on a workstation run poorly until a processor feature that accelerates guests is turned on in firmware. Which feature is that?
- A clerk must scan a thick stack of forms without placing each page on the glass. Which scanner feature feeds that stack?
- A sports desk wants smoother motion. Color range and viewing angle are already acceptable on the panels being compared. Which trait should decide the purchase?
- A monitor's video input is DisplayPort. The PC should use the digital cable that mates with that input. Which cable is that?
- A desktop must plug into the wall jack that accepts the wider eight-position connector, not the narrower telephone plug. Which connector is that?
- A desktop needs a spinning hard drive that can seek faster than the slow archive drive already on the shelf. Which drive characteristic matters?
- A clinic copier should send a scanned page to a staff mailbox. Which feature does that?
- A processor was installed with thermal paste and no heatsink or fan. The desktop shuts down as soon as the processor starts working. Which part is missing?
- A builder wants a power supply that lets unused cables stay in the box, so only the cables the build needs are plugged in. Which supply feature is that?
- A laser printer's maintenance counter says the maintenance kit is due, and the pages are still readable. Which action follows that counter?
- An older monitor's digital input is DVI. The PC should use the cable that mates with that input. Which cable is that?
- A case has the full set of ATX standoffs, and the power supply is the ATX size. Which motherboard matches that case?
- A menu board needs deep black and a panel that makes its own light per pixel, with no separate backlight. The image changes often. Which panel fits?
- A layout application sends PostScript, and the shop printer must accept that page-description language. Which printer capability is required?
- A DDR4 module will not seat in a desktop slot built for a newer DDR generation. Which rule explains that?
- A laptop port is marked Thunderbolt, and one cable from that port must carry both a display signal and data. Which cable fits the port?
- A studio must bring a camera's video signal into a desktop so it can be recorded. Which card does that job?
- An older case fan takes a four-pin peripheral power plug from the power supply, not a SATA power plug. Which connector is that?
- A new disk was installed for UEFI boot, and the firmware is set to legacy mode. The PC does not boot that disk. Which firmware change fits?
- A photo kiosk wants strong contrast. Fast motion and wide viewing angles are already acceptable on the panels being compared. Which panel trait fits?
- Icons on a monitor look huge and blurry. The resolution is set far below the panel's native size, and raising it makes the icons a normal size. Which setting was wrong?
- A server board has one processor installed and an empty second processor socket. The manual says the board supports two processors. Which addition uses that empty socket?
- An external drive enclosure connects to a port labeled eSATA. Which cable mates with that port?
- An application installer built for x64 processors will not run on a tablet that uses an ARM processor. Which limit explains that?
- A desktop produces no sound from its speakers or its headset jack. A USB audio adapter plays sound from the same application. Which part has failed?
- An external drive is slow when it is plugged into a USB 2 port and clearly faster in the USB 3 port on the same desktop. Which port should the drive use?
- Two power supplies can deliver the same wattage to a desktop. One of them wastes less of its input as heat. Which rating distinguishes that supply?
- A monitor is advertised with a backlight made of many small LEDs rather than a single fluorescent lamp. Which backlight type is that?
- A coaxial cable from the cable provider screws onto a threaded connector. Which connector is that?
- A laser printer's documentation says it uses PCL, and a PostScript driver produces errors on that printer. Which driver matches the printer?
- A fiber run stays inside one building and is specified for many paths of light rather than a single laser path. Which fiber matches that specification?
- A technician must scan a thick bound book. The book will not pass through the sheet feeder. Which scanner surface should be used?
- Two monitors are the same physical size. One shows much sharper text. Which trait explains the sharper panel?
- A fiber panel uses a square connector that is larger than LC and pushes on rather than twisting like a bayonet. Which connector is that?
- An older laptop has a small SATA SSD slot that is not an M.2 slot. Which drive matches that slot?
- A processor will not drop into a motherboard socket. The socket pattern does not match the processor. Which limit explains that?
Virtualization and Cloud Computing (11%) · 33 questions
- Staff reach a payroll application in a browser. The vendor patches the application and its operating system. The company does not deploy its own code. Which cloud model is this?
- A server room runs several guest machines on a hypervisor that is installed directly on the hardware. No desktop operating system sits underneath. Which hypervisor is this?
- A trainer runs a second operating system in a window on a Windows laptop so students can practice on it. Which hypervisor type is that?
- A designer on a Mac must run an application that only installs on Windows. The Mac itself must stay the daily system. Which approach fits?
- A tax office keeps its file server in its own closet and starts extra virtual machines at a public provider each spring. Which cloud model is that mix?
- Several county clinics share one cloud that was built for those clinics and is not offered to the public. Which cloud model is that?
- A ticket site wants the number of virtual machines to grow when CPU stays high and to shrink when sales are quiet. Which cloud trait is that?
- Accountants use thin clients. Their desktops actually run on servers in the data center, and the clients only display them. Which design is that?
- A factory must try a risky browser plug-in where it cannot reach the office network. Which virtual-machine use fits?
- Developers deploy their own application code. The provider runs the runtime and the operating system under it, and the developers do not patch that operating system. Which cloud model is that?
- A company rents virtual machines from a provider, patches the guest operating systems itself, and does not own the hardware. Which cloud model is that?
- A video shop's cloud bill rises in months when a lot of data leaves the provider and falls when little data leaves. Which cloud trait is that bill?
- A scheduler wants to try a risky change to an application without the staff seeing it. A separate virtual copy of that application is available. Which use of the copy fits?
- A company runs its cloud platform on servers in its own building, and no other company is a customer of that cloud. Which model is that?
- A build server runs many small application instances that share the host kernel and start faster than full guest machines. Which technology is that?
- An application runs only on an older operating system. The shop keeps that older system as a guest on a current host. Which approach is that?
- A customer wants its virtual machines on a physical host that no other customer uses. Which arrangement is that?
- A designer's documents folder on a laptop and the same folder on a desktop stay matched because a cloud client updates both. Which cloud feature is that?
- A design keeps a second site ready so the service continues if the first site fails. Which cloud trait is that?
- Several customers run on the same cloud hosts, and no customer can see another's data. Which cloud trait is that sharing?
- A new virtual machine cannot be created because the host has almost no datastore space left. Which requirement is blocking it?
- A customer chooses to run on a host that other customers also use, in order to pay less. Which arrangement is that?
- A virtual machine cannot reach any network. Its settings show no virtual network adapter connected, and other guests on the host are fine. Which change fits?
- A virtual machine is slow, and the memory assigned to it is far below what its application needs. The host still has free memory. Which change fits?
- A company rents computing capacity from a provider that offers the same service to any customer. The company does not own the hosts. Which cloud model is that?
- A test virtual machine must not reach the production servers. The host already has a virtual switch with no path to those servers. How should the guest be connected?
- A host's datastore is filling up, and the growth is the snapshots kept for one virtual machine. Which requirement do those snapshots create?
- A lab guest must start each class from a clean state. Changes the previous class made inside the guest must not remain. Which action does that?
- A class needs an identical virtual machine for each student. A template guest already exists. Which action provides the copies?
- A virtual machine's disk was created to grow as the guest wrote data. The guest paused when the host datastore had no free space left. What filled the datastore?
- Several virtual machines are slow at the same time. The host CPU stays busy, and the host still has free memory and free disk. Which limit fits?
- A cloud bill rises in months when customers upload large files, and it does not rise the same way when they only download. Which metering matches the uploads?
- A student reverted a virtual machine to a snapshot taken in the morning, and the work done inside the guest that afternoon disappeared. What did the revert do?
Hardware and Network Troubleshooting (28%) · 84 questions
- A tablet's battery cover is bulging and the screen is lifting at one corner. Which action should the technician take first?
- A conference projector says no signal. The laptop's own screen shows the desktop, and the video cable is seated at both ends. Which check comes first?
- A front-desk PC shows limited connectivity. It has an address and a mask, and it cannot ping its gateway. That gateway address is not inside the PC's subnet. Which setting is wrong?
- An OLED laptop shows a faint permanent shadow of a toolbar that sat on screen for months. Which display fault is that?
- A laser printer in a records office pulls several sheets at once on most jobs. Toner and the fuser were just serviced. Which maintenance fixes a multipage misfeed?
- A desktop drive clicks in a steady rhythm, the volume has disappeared, and last week SMART reported reallocated sectors. Which part is failing?
- Every page from a theater's laser printer, including the printer's own test page, shows the same faint vertical line. Which part should be serviced?
- Desk phones sound choppy. Pings to the voice server swing from very quick to very slow, and a file copy still completes. Which problem is the swinging delay?
- A clinic desktop's fans spin, the screen stays black, and the motherboard emits a beep code. A known-good monitor and cable do not change the beeps. Which stage is failing?
- A warehouse desktop reboots at random. Several capacitors on the motherboard are visibly swollen. Which action addresses the failed part?
- A library server shows a degraded RAID array. One disk has an amber fault light, and staff can still open files. Which action fits?
- A laser printer prints random symbols instead of the letter. The printer's own test page looks normal. Which cause fits the bad letter?
- A break-room laptop loses Wi-Fi only while the microwave is running. The laptop is associated on 2.4 GHz. Which cause fits?
- A laser printer's pages have gone pale across the whole sheet. Shaking the toner cartridge makes a few pages dark again. Which cause fits?
- A studio PC shuts down only when a render is running. The case is hot, and the fans and heatsink are packed with dust. Which cause fits?
- A kiosk will not boot, and the firmware does not list its only drive. The data cable is loose at the drive. Which action should come first?
- A lobby display is fuzzy and streaked on a VGA cable. The same PC looks sharp when it is moved to the display's HDMI input. Which cause fits the fuzzy picture?
- A phone will not charge. The same cable charges another phone, and this phone's port is packed with lint so the plug will not seat. What should be done first?
- A cafe changed the Wi-Fi passphrase on the access point. Phones that used to join now fail, and a test phone with the new passphrase joins immediately. Which fix belongs on the failing phones?
- A workstation lets out a wisp of smoke and a burning smell from the power supply while it is still running. What should happen first?
- Every morning a reception PC has lost the date, and the boot order and firmware passwords have reverted. Which part should be replaced?
- A ceiling projector shows an image, then dims and shuts off. Its air filter is packed with dust. Which action addresses the shutdown?
- Each page from a laser printer shows a faint copy of the previous page, and the printer's own test page does the same thing. Which cause fits?
- A front-desk queue shows one job in an error state, and every job behind it waits. The printer's own test page is fine. What should be done first?
- A few dots on a monitor stay black no matter what image is shown, and a different cable does not move them. Which fault is that?
- A workstation's network link light is off. The patch cable was crushed by a cart and the jacket is flattened. Which repair restores the link?
- Coffee has just spilled across a laptop keyboard, and the laptop is still powered on. What should the technician do first?
- After a cleaning, a server's RAID controller says the whole array is missing and sounds an alarm. A cable to the disk backplane is unplugged. Which action fits?
- A laser printer stops with a jam, and a wrinkled sheet is visible in the exit path. It printed a clean test page before the jam. What should be done first?
- An inkjet printer leaves blank bands in one color, and its nozzle check shows gaps in that color. Which maintenance fixes the bands?
- While a user types on a laptop with no external mouse, the pointer jumps and occasionally clicks. Which part is sending that stray input?
- A laptop screen is covered in spiderweb cracks. The picture is broken along those cracks, and touch no longer follows a finger. Which repair fits?
- A workstation becomes sluggish whenever many applications are open. Memory is nearly full, and the disk activity light hammers the whole time. Which shortage fits?
- A laser printer grinds and will not feed. A torn label is stuck in the paper path. Which action stops the grind?
- A desktop shows no lights and no fan spin. A lamp works in the same outlet, and the desktop starts when a known-good power supply is substituted. Which part failed?
- A workstation has become slow to open files. SMART reports pending sectors that keep climbing, and the drive has not started clicking. Which part is failing?
- A switch log shows one port going up and down every few seconds. The patch cable in that port is loose in the jack. Which repair addresses the log?
- A desktop loses power when the case is bumped. The power cord is loose where it enters the power supply. Which repair fits?
- A printer's screen is frozen, the buttons do nothing, and jobs wait. The printer does not respond to a status check. What should be tried first?
- After a memory upgrade, a desktop shows the firmware crash screen and beeps. The new module is not fully seated. Which action fits?
- A laptop loses Wi-Fi in a far office and works when it is carried next to the access point. Which cause fits the far office?
- A monitor's VGA picture is missing green. One pin on the VGA plug is bent, and a different VGA cable shows normal color. Which cause fits?
- Every user's internet is slow while one large backup is running to a cloud provider. A test PC can still reach local servers quickly. Which cause fits?
- A report prints sideways. The application's print setting is landscape, and the user wanted portrait. Which change fixes the pages?
- A desktop optical drive spins up and then stops, and it will not read a disc. The same disc reads in another drive. Which part is failing?
- A new internal drive does not appear in firmware. The data cable is seated, and the drive's power connector is unplugged. Which action should come first?
- A phone shuts down while charging under a pillow, and the case is hot. What should be done first?
- Applications crash, the desktop case is hot, and the processor fan is not spinning. Which fault fits?
- Laser pages are covered in scattered speckles, and loose toner is visible inside the printer. Which maintenance addresses the speckles?
- A tablet's picture is intact and the glass is not cracked, but a finger's touch no longer lands where the picture shows. Which part is failing?
- A conference display flashes whenever someone touches the HDMI cable, and it is steady when the cable is held still. Which repair fits?
- A printer reports that the paper tray is missing, and the tray is sitting an inch short of being closed. Which action clears the message?
- Every page from a laser printer, including its own test page, shows the same mark repeating at an even interval down the sheet. Which cause fits?
- A laptop shows its picture on an HDMI display, but sound still comes from the laptop speakers. The display has speakers. Which change sends the sound to the display?
- A projector's image is wider at the top than at the bottom because the projector points upward at the screen. Which correction addresses the shape?
- A desktop is still running and a burning smell is coming from the motherboard area, not from the power supply. What should happen first?
- A database on a spinning hard drive is slow to answer queries. SMART is healthy, and the same queries are quick when the files are on a solid-state drive. Which limit fits?
- Every laptop on the office Wi-Fi is slow. A wired PC on the same switch is fast, and a wireless survey shows the channel packed with neighboring networks. Which cause fits?
- The queue shows a printer offline, so jobs wait. The printer is powered on and its own test page looks normal. What should be done first?
- A printer's finisher jams, and the staple cartridge is both empty and jammed with bent staples. Which maintenance clears the finisher?
- A desktop shuts down at random. The case is not hot, and a power-supply tester shows the supply dropping out under load. Which part should be replaced?
- Pings from a branch to the main office stay slow, and each ping takes about the same long time. They do not swing from fast to slow. Which problem is that steady delay?
- Office internet drops and returns. Moving the loose plug in the modem's WAN port reproduces the drop. Which repair fits?
- A projector's image is visible but very dim. The brightness control is at its minimum, and raising it brightens the image. Which cause fits?
- Firmware lists a new drive, and the PC keeps booting an older disk. The new drive is not selected in the boot order. Which change boots the new drive?
- A tablet charges very slowly on a small phone charger and charges at a normal pace on the charger that came with the tablet. Which fix fits?
- A workstation's link is up, but it runs much slower than the switch port supports. Replacing a damaged patch cable restores the higher speed. Which part caused the slow link?
- A desktop is on and its fans are spinning. The monitor is dark, and the monitor's power cable is unplugged. Which repair brings the picture back?
- A workstation can ping the file server by address and cannot ping it by name. Other tests to that address succeed. Which service is failing?
- Jobs request tray 2, the printer pauses, and tray 2 is empty. Tray 1 is full of the same paper. Which action lets the jobs print?
- A laser printer's queue will not move. The first job stays at the front and later jobs wait behind it. The printer is online and its own test page prints. Which action lets the later jobs print?
- A brand-new toner cartridge prints blank pages. The sealing tape is still on the cartridge. Which action produces a printed page?
- Laser pages are pale. The printer is set to draft quality, the toner level is fine, and switching to normal quality darkens the pages. Which change should stay in place?
- A projector runs, then shuts off and reports that the lamp has reached its service-hour limit. The air filter is clean. Which part should be replaced?
- A laptop's built-in screen stays black. An external monitor on the same laptop shows the desktop, and the cable in the lid looks loose. Which part should be reseated?
- A desktop powers on, the fans spin, and it beeps and will not start. All of the memory modules were removed during cleaning. Which action fits?
- After a memory upgrade, a desktop beeps continuously and will not start. The new module is the wrong generation and is not seated. Which action fits?
- A projected image spills past every edge of the screen. Reducing the projector's zoom brings the whole image onto the screen. The shape stays rectangular. Which control fixed the spill?
- A desktop crashes until one memory module is removed. That same module crashes a second desktop, and a known-good module is stable in the first desktop's slot. Which part has failed?
- A desktop makes a grinding noise only while a disc is in the optical drive. Files on the hard disk open normally, and the noise stops when the tray is empty. Which part is making the noise?
- A laptop runs normally on its adapter and shuts down quickly on battery. The battery health reading says the battery is worn out. Which part should be replaced?
- One network printer has no link light and will not print. Another printer on the same network prints from the same PC. The first printer's network cable is unplugged. Which action restores the first printer?
- New laptops receive addresses in 169.254.0.0/16 and cannot reach the office servers. Laptops that already had a lease still work. The DHCP scope shows no free addresses. Which condition explains the new laptops?
- Voice calls are usable but every word arrives late. The delay stays high and does not swing up and down. Large file copies still finish. Which condition matches the calls?
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