CompTIA A+ 220-1101
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| Exam Code |
220-1101 |
| Exam Name |
CompTIA A+ 220-1101 |
| Questions |
300 Questions Answers With Explanation |
| Update Date |
May 2, 2025 |
Sample Questions
Question 1
Which port is used by HTTPS?
A. 21
B. 80
C. 443
D. 110
Correct Answer: C
Explanation: HTTPS uses port 443 for secure web communications.
Question 2
Which device allows multiple networked devices to share the same IP address with the outside world?
A. Hub
B. Switch
C. Router
D. Repeater
Correct Answer: C
Explanation: Routers perform NAT (Network Address Translation) to allow internet access from multiple devices.
Question 3
Which type of cable is immune to electromagnetic interference (EMI)?
A. Cat 5e
B. Cat 6
C. Fiber optic
D. Coaxial
Correct Answer: C
Explanation: Fiber optic cables use light and are not affected by EMI.
Question 4
Which printer type uses a laser and toner cartridge?
A. Inkjet
B. Dot matrix
C. Laser
D. Thermal
Correct Answer: C
Explanation: Laser printers use toner and a laser imaging process.
Question 5
Which wireless standard operates only in the 5 GHz band and supports up to 1 Gbps?
A. 802.11a
B. 802.11n
C. 802.11ac
D. 802.11b
Correct Answer: C
Explanation: 802.11ac supports 5 GHz and higher speeds than previous standards.
Question 6
Which of the following would be MOST appropriate for securely connecting remote users to a corporate network?
A. Telnet
B. VPN
C. FTP
D. SMTP
Correct Answer: B
Explanation: VPNs provide secure, encrypted connections to remote networks.
Question 7
You need to connect a printer located 25 meters away. Which cable would be BEST?
A. USB
B. Ethernet
C. HDMI
D. SATA
Correct Answer: B
Explanation: Ethernet supports longer distances than USB and is ideal for networked printers.
Question 8
What is the main function of a power supply unit (PSU) in a desktop computer?
A. Transmits data
B. Stores configuration
C. Converts AC to DC
D. Boosts clock speed
Correct Answer: C
Explanation: PSUs convert AC from the wall to DC for internal components.
Question 9
A user’s laptop keyboard isn’t working. What is the BEST first step in troubleshooting?
A. Reinstall the OS
B. Replace the keyboard
C. Plug in an external keyboard
D. Reformat the drive
Correct Answer: C
Explanation: Use an external keyboard to determine if the issue is hardware- or software-related.
Question 10
Which storage technology uses flash memory and no moving parts?
A. HDD
B. SSD
C. Blu-ray
D. Tape
Correct Answer: B
Explanation: SSDs use flash memory for faster, more reliable storage.
Question 11
What is the purpose of the POST process during startup?
A. Load the operating system
B. Detect installed applications
C. Test hardware functionality
D. Reset BIOS settings
Correct Answer: C
Explanation: POST checks hardware like RAM, CPU, and video before OS loads.
Question 12
Which cloud service model provides virtualized hardware (CPU, RAM, storage)?
A. SaaS
B. PaaS
C. IaaS
D. DBaaS
Correct Answer: C
Explanation: Infrastructure as a Service (IaaS) offers virtual machines, storage, and networking.
Question 13
A technician sees horizontal lines printed on every page from a laser printer. What is MOST likely the cause?
A. Dirty rollers
B. Damaged fuser
C. Low toner
D. Corrupt driver
Correct Answer: B
Explanation: A damaged fuser often causes repeated print defects in the same location.
Question 14
Which of these expansion cards would provide wireless connectivity?
A. GPU
B. NIC
C. WLAN
D. Sound card
Correct Answer: C
Explanation: A WLAN card provides Wi-Fi capabilities.
Question 15
A user reports they can’t connect to the internet but other users can. What should you check FIRST?
A. Reboot the router
B. Check the user’s IP address
C. Replace the NIC
D. Run disk defragmentation
Correct Answer: B
Explanation: Checking the IP helps determine whether the device is connected properly.
Question 16
Which connector is commonly used for external hard drives?
A. SATA
B. IDE
C. USB
D. VGA
Correct Answer: C
Explanation: USB is the most common external connector for storage devices.
Question 17
You need to extend the display of a laptop to two external monitors. What is the BEST option?
A. Use VGA and HDMI ports
B. Use a docking station
C. Use a USB mouse
D. Reboot in safe mode
Correct Answer: B
Explanation: Docking stations allow easy multiple display outputs and other connections.
Question 18
What kind of device is used to boost a Wi-Fi signal in a large office?
A. Switch
B. Repeater
C. Hub
D. Firewall
Correct Answer: B
Explanation: A repeater or range extender boosts Wi-Fi coverage.
Question 19
Which of the following IP addresses is private?
A. 8.8.8.8
B. 192.168.0.1
C. 172.32.0.1
D. 11.0.0.1
Correct Answer: B
Explanation: 192.168.x.x is part of the private IP range.
Question 20
Which of the following connectors provides digital audio and video over a single cable?
A. DVI
B. VGA
C. HDMI
D. PS/2
Correct Answer: C
Explanation: HDMI transmits both high-quality audio and video.
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CompTIA A+ 220-1101
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