CompTIA Core
15 free questions with worked answers, and 103 more in the full bank.
Free questions
A technician is replacing a laptop keyboard. After reassembly, the display does not turn on but external monitors work. The MOST likely cause is...
1 mark · Easy
A user complains their mobile device screen frequently turns off when they hold it to their ear during a call. What component is responsible?
3 marks · Medium
A network technician is tasked with running cables through an air circulation space above a drop ceiling. What type of cable MUST be used?
3 marks · Medium
A small business needs to upgrade its wireless network to support the maximum number of devices and highest speeds utilizing both 2.4 GHz and 5 GHz bands, plus a 6 GHz band. Which standard should they adopt?
4 marks · Hard
A user is upgrading their motherboard and CPU. The new processor is an AMD Ryzen 7000 series. Which CPU socket type should the new motherboard have?
3 marks · Medium
A gamer is building a new PC and wants the fastest possible boot times and game loading speeds. Which storage technology should they install on their motherboard?
1 mark · Easy
A developer is testing an application on a Type 2 hypervisor. They are about to install a major software update and want to quickly revert if it fails. What feature should they use?
4 marks · Hard
A startup is developing a web application. They want to rent servers, storage, and networking from a cloud provider but will install and manage their own OS and databases. Which service model is this?
3 marks · Medium
A user reports that their laser printer is producing pages with ghosted images from previous prints. Which step of the laser printing process is MOST likely failing?
4 marks · Hard
A technician is troubleshooting a desktop that powers on, fans spin, but there is no display and it emits 3 short beeps. What does this indicate?
3 marks · Medium
A laptop screen is entirely black, but shining a flashlight on it reveals a faint image of the Windows desktop. What component has failed?
4 marks · Hard
A user needs to replace a failing internal storage drive in a thin-and-light ultrabook. Which form factor is MOST likely to fit?
1 mark · Easy
A technician is terminating a Cat 6 cable to connect a PC to a wall jack. Which connector should be used?
3 marks · Medium
A company is running fiber optic cable between two buildings. The networking team needs a connector that uses a push-pull mechanism and is half the size of older connectors. Which should they use?
4 marks · Hard
An office is experiencing slow network speeds when transferring large video files over the local network. They are currently using Cat 5 cable. What should they upgrade to for 1 Gbps speeds?
1 mark · Easy
More CompTIA Core questions (page 1 of 2)
Answers and explanations are in the full bank.
- A PC builder is installing a new Intel processor. The motherboard specifies an LGA1700 socket. Which of the following is true? · 3 marks
- A user wants to add more RAM to their laptop. The existing stick is labeled "PC4-25600". What type of memory should the user purchase? · 4 marks
- A customer is buying a cheap tablet for basic web browsing. The specs list the storage as 64GB but do not mention SSD or HDD. What type of storage is MOST likely used? · 1 mark
- A system administrator needs to run three Windows Server virtual machines on a dedicated bare-metal server. Which type of hypervisor should be installed? · 3 marks
- A student wants to run Linux inside a window on their Windows 10 desktop to learn command line basics. What type of hypervisor is required? · 1 mark
- A developer is writing code for a new app and using a cloud provider to host the execution environment, runtime, and databases without managing the underlying servers. What cloud model is this? · 4 marks
- A hospital needs to utilize cloud computing for off-site backups but must adhere to strict data privacy regulations, ensuring they do not share hardware with other companies. What deployment model should they use? · 3 marks
- A gamer has purchased a high-end graphics card. Upon installation, they notice the card requires two 8-pin power connectors. Which component must supply these connectors? · 3 marks
- A server rack in a small closet experiences frequent brief power outages. What device should be installed to provide immediate, short-term battery power during these events? · 4 marks
- Which connector on a standard ATX power supply provides the primary power to the motherboard? · 1 mark
- An inkjet printer is producing pages with missing lines of text and streaks. What maintenance task should the user perform FIRST? · 3 marks
- A retail store uses a receipt printer. The receipts are coming out completely blank, though the paper feeds normally. What is the MOST likely cause? · 4 marks
- A designer is using a 3D printer to create a plastic prototype. Which type of material is typically used in FDM (Fused Deposition Modeling) 3D printers? · 3 marks
- A desktop PC shuts down randomly after 15 minutes of heavy use. The fans are spinning, and the case feels hot. The technician discovers a thick layer of dust on the CPU heatsink. What is the root cause? · 4 marks
- A user powers on their PC and sees a message stating "No Boot Device Found." Which of the following should the technician check FIRST? · 1 mark
- A user is upgrading a laptop. Which component is the LEAST likely to be upgradeable or replaceable by a field technician? · 3 marks
- What is the maximum reliable distance for a Gigabit Ethernet connection over standard Cat 6 copper cable? · 4 marks
- A technician is tasked with installing a new power supply in a custom PC. The motherboard has a specific 8-pin connector near the CPU socket. What is this connector for? · 3 marks
- Under the cloud shared responsibility model for a SaaS application (like Microsoft 365), what is the customer primarily responsible for managing? · 1 mark
- During the laser printing process, which step involves a laser beam striking the imaging drum to reduce the electrical charge in specific areas? · 3 marks
- A laptop user reports their cursor jumps randomly while typing. What is the MOST likely simple fix? · 1 mark
- A user is setting up a home wireless network and sees options for WEP, WPA, WPA2, and WPA3. Which protocol provides the strongest security? · 3 marks
- A technician is troubleshooting a PC that keeps losing its system time and BIOS settings when unplugged. What is the most likely cause? · 4 marks
- Which component is required in the BIOS/UEFI to allow a Type 2 hypervisor to run 64-bit virtual machines effectively on a Windows host? · 3 marks
- A laser printer is producing pages where the toner wipes off when touched. Which component has failed? · 4 marks
- A computer is making a loud, continuous clicking noise. Which component is MOST likely failing? · 1 mark
- Which display technology provides the best contrast ratios and true blacks because each pixel produces its own light? · 3 marks
- Which connector is traditionally used for analog telephone lines? · 1 mark
- A technician installs a new M.2 NVMe drive, but it does not appear in the BIOS or Windows. What should the technician check FIRST? · 3 marks
- A technician is calculating the power requirements for a new PC build. The CPU draws 105W, the GPU draws 250W, and other components draw 100W. To ensure longevity and efficiency, what minimum wattage PSU should they buy? · 4 marks
- Which cloud concept describes the ability to automatically add or remove compute resources based on current demand? · 1 mark
- A user needs to print multi-part carbonless forms. Which type of printer is required for this task? · 3 marks
- A technician replaces a motherboard. Upon booting, the system immediately shuts down after 3 seconds. The thermal paste was applied correctly. What is the MOST likely oversight? · 4 marks
- A laptop's Wi-Fi is not working. The OS shows no Wi-Fi networks available, though other devices connect fine. What is the quickest thing to check FIRST? · 1 mark
- Which component is responsible for storing the BIOS/UEFI firmware and settings permanently? · 3 marks
- A supervisor tests your knowledge of SODIMM. Which answer is best? · 3 marks
- A supervisor tests your knowledge of NTFS. Which answer is best? · 4 marks
- In CompTIA Core (A+ operations and support), a supervisor tests your knowledge of patch management. Which answer is best? · 4 marks
- A supervisor tests your knowledge of APIPA. Which answer is best? · 4 marks
- A supervisor tests your knowledge of DHCP reservation. Which answer is best? · 1 mark
- A supervisor tests your knowledge of mean time to repair. Which answer is best? · 1 mark
- A supervisor tests your knowledge of shoulder surfing. Which answer is best? · 1 mark
- A supervisor tests your knowledge of authentication-factor categories. Which answer is best? · 3 marks
- A supervisor tests your knowledge of endpoint detection and response. Which answer is best? · 3 marks
- A supervisor tests your knowledge of data loss prevention. Which answer is best? · 3 marks
- A supervisor tests your knowledge of public key infrastructure. Which answer is best? · 3 marks
- A supervisor tests your knowledge of CVSS. Which answer is best? · 4 marks
- A supervisor tests your knowledge of incident eradication. Which answer is best? · 4 marks
- A supervisor tests your knowledge of risk acceptance. Which answer is best? · 4 marks
- A supervisor tests your knowledge of infrastructure as a service. Which answer is best? · 1 mark
- A supervisor tests your knowledge of first troubleshooting step. Which answer is best? · 1 mark
- A supervisor tests your knowledge of NVMe SSD. Which answer is best? · 4 marks
- During routine technical work, which statement about USB Type-C should guide the technician? · 3 marks
- During routine technical work, which statement about Thunderbolt should guide the technician? · 3 marks
- During routine technical work, which statement about an NVMe SSD should guide the technician? · 3 marks
- During routine technical work, which statement about a SODIMM should guide the technician? · 3 marks
- During routine technical work, which statement about a Trusted Platform Module should guide the technician? · 3 marks
- During routine technical work, which statement about Secure Boot should guide the technician? · 3 marks
- During routine technical work, which statement about UEFI firmware should guide the technician? · 3 marks
- During routine technical work, which statement about NTFS permissions should guide the technician? · 3 marks