CompTIA 220-901 Exam Dumps

CompTIA 220-901 Exam Dumps

CompTIA A+ Certification Exam: Core 1

758 Questions & Answers with Explanation
Update Date : May 20, 2024
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CompTIA 220-901 Sample Questions

Question # 1

A technician is called to work on a file server with two hard drives in a hardware RAID1 configuration. One of the drives fails and, after being tested, is not recoverable. It is important that the server continues to function at high availability and is not taken offline. Which of the following steps should the technician take? (Select TWO.)

A. Rebuild the array
B. Disable the logical drive
C. Upgrade to RAID 5.
D. Replace the drive
E. Break the mirror

Question # 2

A technician is visiting a client site in a high-traffic area that often contains external visitors and contractors. The technician would like to ensure the laptop is protected from theft. Which of the following is the BEST tool the technician can use?

A. The laptop’s webcam as an internet security camera
B. Asset location tracking software
C. Physical laptop lock and cable
D. Locked screen whenever not in use

Question # 3

A customer recently had a power outage that affected a PC. When the PC is powered on, the front panel LEDs illuminate and the fans engage, but there is no video output or drive activity. The technician replaces the PSU, but the symptoms remain. Which of the following MOST likely occurred?

A. The PSU is not large enough to adequately power the system.
B. The motherboard was damaged by power loss or spike.
C. The hard drive was erased by the power loss.
D. The wall outlet was damaged, and the PC should be plugged in elsewhere.

Question # 4

Which of the following connector types requires an adapter cable on thin form factor laptops?

A. Thunderbolt
B. Analog 

Question # 5

Which of the following wireless connections requires pin-enabled pairing before it can be used?

D. Bluetooth

Question # 6

Which of the following transmission technologies has the SHORTEST range?

B. WiFi 
D. Bluetooth

Question # 7

A customer has called to report that text and images are faint when printed. Which of the following should the technician perform to fix this issue?

A. Adjust the pickup rollers.
B. Clean the heating element.
C. Replace the toner.
D. Recalibrate the printer.

Question # 8

A customer has built a new computer. However, the computer will not POST. The customer calls the help desk to dispatch a technician, who examines the build and tests the power supply. The power supply tests as good. Which of the following should the technician do NEXT?

A. Check the 12V 4-pin connector
B. Flash the BIOS
C. Reseat the RAM.
D. Replace the motherboard

Question # 9

A user reports that a laptop display is too dim. Which of the following would be the BEST troubleshooting step for the technician to perform?

A. Turn up the screen’s refresh rate.
B. Update the video driver to the latest version.
C. Use the hot key to adjust illumination levels.
D. Uninstall and reinstall the video driver.

Question # 10

Which of the following are the two connection types required for full functionality of tethered VR headsets when they are connected to a PC?

A. USB and audio
B. HDMI and USB 
C. HDMI and audio
D. HDMI and DisplayPort

Question # 11

Which of the following monitor types is considered the MOST environmentally friendly to recycle?

B. Plasma 

Question # 12

A technician is installing new hard disks to begin a new Windows 8 installation and has successfully attached all cables. However, the installation wizard does not detect any hard drives. Which of the following is MOST likely to resolve the issue? 

A. Format the drives to FAT32
B. Enable S.M.A.R.T. in the BIOS
C. Format the drives to NTFS
D. Change the SATA control mode to AHCI

Question # 13

A user reports that a desktop laser printer produces pages that smudge when handled. A technician the toner has been replaced, but the issue still persists. Which of the following components should the technician check NEXT?

A. Ink cartridge
B. Drum 
C. Fuser
D. Spooler

Question # 14

After installing a new monitor, a user notices that some colors are incorrectly displayed. The technician reboots the PC to see if this resolves the issue. After reboot, the problem persists. Which of the following should the technician perform NEXT?

A. Reseat the video card
B. Check the monitor connection
C. Verify the drivers are up to date
D. Replace the monitor

Question # 15

A technician needs to connect two buildings that are 500ft (150m) apart via Cat 6 cable. Which of the following devices could the technician use to enable connectivity?

B. Repeater 
C. Firewall
D. Modern

Question # 16

A marketing firm is upgrading its desktop computers so employees can send out discs with presentations on them. Which of the following media will provide the employees with the MOST capacity? 


Question # 17

Given the above information, which of the following is the root cause of the problem?

A. The network adapter is disabled
B. The DHCP server is not available
C. The DNS server is not responding
D. The network cable is not connected

Question # 18

A technician assists a user with a local printer issue on a domain workstation. While working in a word processing program, the user clicks the printer icon. The software appears as if the job was sent to the printer, but nothing prints. The technician confirms the printer queue is empty. Which of the following troubleshooting steps should the technician perform FIRST?

A. Disconnect and reconnect the USB cable.
B. Reboot the computer
C. Check the default printer setting
D. Cycle power on the printer

Question # 19

A technician replaces a PCle graphics card with a newer model. After installation, the technician connects a VGA cable to the video card and boots the computer into the OS. When the desktop finally loads, all the icons and menus are much larger than before. The technician attempts to change the resolution but cannot raise it any higher. Which of the following is the MOST likely reason for this behavior?

A. The old video and card needs to be removed from the Device Manager
B. Drivers are not installed for the new graphics card.
C. An HDMI cable is required for higher resolutions.
D. The DPI settings in the OS are set improperly
E. The monitor does not support higher resolutions

Question # 20

Which of the following components is a thin transparent layer that reads the signal from a touch- screen laptop and sends it to the processing unit?

B. Digitizer 
C. Inverter

Question # 21

A company’s Chief Executive Officer (CEO) has asked a consultant to order a new external monitor to be used in the CEO’s office. Picture quality and contrast ratio are the most important factors, but cost is not a factor. Which of the following types would BEST meet these requirements? 

A. Plasma

Question # 22

A user is building a custom workstation that will be used to multiboot various OSs, including Linux,Windows 7, Windows 8.1, and Windows Vista.When purchasing RAM for this system, the user should consider the MINIMUM amount of RAM required for:

A. Linux
B. Windows 7
C. Windows Vista
D. Windows 8.1

Question # 23

Which of the following settings allow users to access the Internet and external networks?

A. Subnet mask
C. Gateway

Question # 24

A traveling employee has returned from a trip. The employee’s laptop was working before the trip but is now unable to connect to any wireless devices. Which of the following should be checked FIRST?

A. Outdated drivers
B. Defective inverter 
C. Disabled GPS
D. Airplane mode

Question # 25

A computer is being built with multiple gaming video cards to ensure a smooth gaming experience. Which of the following specifications is the MOST imnportant?

A. ATX connector type
B. Dual rail 
C. Wattage
D. Dual voltage

Question # 26

A home has a modem that connects to the ISP via RG-59 cable. Which of the following WAN connections is MOST likely in use?

A. Dial-up
C. Cable
D. Fiber optic

Question # 27

A technician is installing several new network lines. The technician has a spool of Cat 6 cable and a bag of RJ45 connectors. Which of the following tools does the technician need to complete the job?(Select TWO) 

A. Multimeter
B. Wire stripper 
C. Crimper
D. Tone generator
E. Loopback plug

Question # 28

Which of the following is used to terminate coaxial cabling to deliver Internet?

A. RG-6
B. RJ45
C. F-connector
E. RG-59

Question # 29

For SDRAM to operate in dual-channel mode, which of the following must be done? (Select TWO.)

A. CAS latency must be 1 or better.
B. ECC must be supported.
C. DIMM installation must be in pairs.
D. Proper banks must be used. E.200-pin memory must be used.

Question # 30

Which of the following display connector types can transmit either a digital-to-digital signal or an analog-to-analog signal?


Question # 31

A developer wants an external hard drive connected to the laptop that supports the FASTEST possible transfer speed. Which of the following technologies should a technician recommend?

A. Thunderbolt
B. Bluetooth 
C. FireWire
D. USB 2.0 
E. minHDMI

Question # 32

A user reports that saving files to a file server seems slower than normal. A technician confirms the server shows no errors in the event log, but notices one of the three drives in the server has an amber light. Which of the following is the MOST likely cause of the issue?

A. One drive in the server’s RAID 0 array has failed.
B. One drive in the server’s RAID 1 array has failed.
C. One drive in the server’s RAID 5 array has failed.
D. One drive in the server’s RAID 10 array has failed.

Question # 33

A technician is tasked with troubleshooting hard disk performance issues. The technician launches Performance Monitor and notices the counter split IO/sec is high for the primary hard disk. Which of the following tools should the technician use to address this issue?

A. Check disk
B. Disk defragmenter 
C. Format
D. DiskPart

Question # 34

A technician installed a new CPU and heat sink on the motherboard. After installation, the technician notices the computer shuts down after a few minutes of operation. Which of the following steps did the technician MOST likely omit?

A. Application of thermal paste
B. Closure of ZIF socket
C. Case fan installation
D. ECC RAM installation

Question # 35

A technician is installing a new office workgroup printer and wants to network it across all computers. Which of the following methods would accomplish this with the MOST reliable results?

A. Enable Bluetooth on the printer and allow users to print wirelessly
B. Connect a network cable to the printer and establish IP-based printing
C. Connect it over parallel cable to a PC and share the printer with users
D. Connect it over USB to a PC and share the printer with users

Question # 36

Which of the following connectors can be used for removable devices and has a bandwidth of 10Gbps?

A. USB 3.0
D. USB 2.0 
E. Thunderbolt

Question # 37

A support technician troubleshoots a workstation with intermittent network connectivity to the company’s domain. The network uses 802.1X certificate authentication, and the workstation had full connectivity last week. Which of the following tools or utilities should be used to troubleshoot this issue?

A. Tone generator and probe
B. IPConfig
C. Cable tester
D. Certutil

Question # 38

While in flight, a user enabled airplane mode on a tablet. Which of the following functions are disabled when airplane mode is on? (Select TWO.)

A. WiFi connectivity
B. Web browser
C. Speaker volume
D. Email sync settings 
E. Bluetooth
F. Wireless charging

Question # 39

A multimedia workstation has an existing SATA hard drive that is approaching full capacity. A technician wants to add additional hard drives into this workstation to store additional data.These drives will be used purely for file storage, and hardware redundancy is required to be in place to prevent data loss. The technician plans to add a PCle storage adapter to help fulfill these requirements. Which of the following actions should the technician take when installing this new hardware? (Select TWO).

A. The driver for the storage adapter must be installed into the OS.
B. The storage adapter should be places highest in the boot order.
C. The storage adapter should use RAID 0.
D. The additional hard drives must also use the SATA interface.
E. The storage adapter should be configured for mirroring.

Question # 40

Which of the following encryption types does WPA use?

D. IPSec

Question # 41

A user has a backup file that is 8.6GB and wants to save the entire file on one disc. Which of the following types of discs is the MINIMUM required to save the entire file?

A. Dual-layer DVD
B. BD-R 
D. Single-layer DVD

Question # 42

A user reports the F1-F2 keys on a laptop do not perform as expected. Another application opens when pressing F1, and the screen dims when pressing F5. Which of the following would remedy the situation?

A. Disabling sticky keys 
B. Scroll lock
C. Function key
D. Firmware update

Question # 43

A technician is investigating reporting issues with a computer. The technician logs into the computer, checks the Event Viewer and notices messages about unexpected shutdowns. The technician checks the Device Manager, but there are no errors or warnings. The computer shuts down unexpectedly during troubleshooting. The technician pushes the power button, but the computer does not power on. The technician opens the computer case, checks all cables and connectors, and verifies they are connected properly. The technician closes the case and pushes the power button again, and the computer boots. After working for a few minutes, the computer shuts down unexpectedly once again. Which of the following is the MOST likely reason for the unexpected shutdowns? 

A. Case fan failure
B. Overheating 
C. BIOS corruption
D. Intermittent drive failure

Question # 44

A user experiences a sudden power loss, causing the computer to unexpectedly shut down. Upon rebooting, the user finds the computer cannot connect to certain network services. Additionally, when signing into the company’s web portal, an error states that the website is using an invalid TLS/SSL  certificate.  A  technician  examines  the  issue  and  finds  that  no  other users report similar problems. Which of the following is MOST likely the cause of these issues?

A. A power surge has damaged the system’s RAM.
B. The dirty shutdown has caused data corruption.
C. The system’s time has been reset.
D. The system’s NIC was damaged by the power loss.

Question # 45

A technician has recently replaced a dead bulb in a conference room projector. The following day, it is reported that the projector shows a message that the bulb needs to be replaced again. Which of the following should the technician do to BEST resolve the issue?

A. Disable on-screen errors in the projector settings
B. Power cycle the projector until the error message disappears
C. Replace the bulb with one from the correct manufacturer
D. Reset the bulb life duration in the projector settings

Question # 46

A user has reported to a technician that a workstation can no longer connect to the network file share. Upon inspection, the technician notices that the customer is experiencing the following symptoms:No other workstations are experiencing this issue. Which of the following hardware tools should the technician use to isolate the problem? (Select TWO.)

A. Loopback plug
B. USB Ethernet adapter 
C. Wire strippers
D. Crimpers
E. Cable tester

Question # 47

Which of the following should be used for wiring a home cable Internet connection?

A. RG-6
B. Plenum 

Question # 48

Users report that a network printer has stopped working and the shared print queue has grown throughout the day. Several users have attempted to print the same job numerous times. If possible, the technician would like to preserve only the original print jobs on the print server. Which of the following should the technician attempt FIRST?

A. Restart the printer hardware
B. Remove duplicate jobs from the queue
C. Restart the print spooler service
D. Update the server’s printer drivers

Question # 49

Which of the following ports must be open for an email client to receive email?

A. 21
B. 22 
C. 25
D. 53 
E. 110

Question # 50

A technician upgraded a laptop’s storage by replacing the magnetic disk with an SSD. Which of the following should the technician configure to optimize the SSD’s lifespan?

A. Disable scheduled defragmentation
B. Enable power-saving features
C. Enable OS paging file
D. Disable cache write-through

Question # 51

A customer wants to upgrade a computer with two additional hard drives, a more powerful GPU, a Blu-ray drive, and additional case fans to keep the system cool. Which of the following is MOST important to consider when adding these components to the system?

A. The total number of pins on the 12V connector
B. That the power supply has a single rail
C. The total wattage capacity of the power supply
D. That the power supply is compatible with microATX

Question # 52

A user’s laptop is shutting down unexpectedly. The technician discovers the shutdowns only happen when the laptop is moved from one room to another. The technician reseated the hard drive, memory, battery, and LCD cable, but the laptop continues to shut down. Which of the following is the MOST probable cause of the issue?

A. Residual energy on the motherboard
B. System overheating 
C. Distended capacitors
D.Loose battery connection 
E. CMOS battery failure

Question # 53

A client asks a technician to upgrade the Intel i5 processor in a laptop. The client wants to improve performance without replacing other core components. Which of the following steps are MOST appropriate when completing the upgrade? (Choose two.)

A. Replace the thermal compound on the heat sink.
B. Use a socket AM2 CPU for the upgrade.
C. Update the HAL on the OS.
D. Use a socket 1155 CPU for the upgrade.
E. Use a socket FM1 CPU for the upgrade.
F. Download and install the drivers for the new CPU before the upgrade.

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