CompTIA A+ Core 1 Free Practice Test

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Prepare for CompTIA A+ Core 1 with our free practice test! Master key concepts, protocols, and troubleshooting skills to ace your certification exam.

Watch on ▶️YouTube: CompTIA A+ Core 1 Free Practice Test

Question 1: File Transfer Protocol
A technician needs to transfer files between two computers over a network using a secure protocol. Which protocol should they use?

  • FTP
  • SFTP
  • Telnet
  • POP3
  • LDAP

Answer: SFTP (Secure File Transfer Protocol) encrypts file transfers over a network, making it more secure than FTP. SFTP uses port 22, while FTP uses ports 20 or 21.

Question 2: External Monitor Connection
A user wants to connect a high-resolution external monitor to their laptop for 4K at 120Hz. Which connection provides the best performance?

  • HDMI 1.4
  • VGA
  • DisplayPort 1.4
  • DVI-D
  • USB 2.0

Answer: DisplayPort 1.4 supports 4K at 120Hz, making it ideal for high-resolution, high-refresh-rate displays.

Question 3: Wireless Printer Protocol
A technician is setting up a wireless printer. Which protocol is commonly used for automatically discovering network printers?

  • Bonjour
  • POP3
  • RDP
  • SMTP
  • HTTPS

Answer: Bonjour is a service discovery protocol used for automatically detecting devices like network printers.

Question 4: Laptop SSD Interface
A technician needs to replace a failing storage drive in a laptop. Which interface is commonly used for internal laptop SSDs?

  • SATA
  • M.2 NVMe
  • USB
  • RJ45
  • Thunderbolt

Answer: M.2 NVMe is a common interface for high-speed internal SSDs in modern laptops.

Question 5: Remote Desktop Port
A technician is setting up a Windows Remote Desktop connection. Which port should be open on the firewall?

  • 443
  • 80
  • 25
  • 53
  • 3389

Answer: Port 3389 is used by the Windows Remote Desktop Protocol (RDP).

Question 6: Security Camera Connection
A technician is setting up a security camera system requiring constant high-speed data transfer over long distances. Which connection type should they use?

  • Cat 5e Ethernet
  • Fiber Optic
  • Coaxial
  • USB 3.0
  • RJ11

Answer: Fiber Optic cables support high-speed data transmission over long distances with minimal interference.

Question 7: Smartphone to Car Stereo
A user wants to connect a smartphone to a car stereo for charging and audio playback. Which connector is most likely used?

  • RJ45
  • DVI
  • Serial
  • USB-C
  • eSATA

Answer: USB-C supports both charging and data transfer, making it ideal for smartphone-to-car stereo connections.

Question 8: Monitor Connector for Video and Audio
A technician is connecting a monitor to a desktop computer. Which connector supports both video and audio?

  • HDMI
  • DVI
  • VGA
  • DisplayPort
  • USB-C

Answer: HDMI, DisplayPort, and USB-C all support both video and audio signals, unlike DVI and VGA, which only support video. HDMI is the most popular choice.

Question 9: Email Reception Issue
A user can send emails but cannot receive them. Which protocol is most likely misconfigured?

  • SMTP
  • IMAP
  • FTP
  • HTTPS
  • RDP

Answer: IMAP (Internet Message Access Protocol) is responsible for retrieving emails, while SMTP is used for sending emails.

Question 10: Laptop to Wired Network
A technician needs to connect a laptop without an Ethernet port to a wired network. What’s the best solution?

  • VGA to Ethernet adapter
  • HDMI to Ethernet adapter
  • RJ11 converter
  • USB to Ethernet adapter
  • Wi-Fi repeater

Answer: A USB to Ethernet adapter allows laptops without built-in Ethernet ports to connect to wired networks.

Question 11: eSATA External Hard Drive
A user needs to connect an older external hard drive with an eSATA port to a modern laptop with only USB ports. What’s the best solution?

  • eSATA to USB adapter
  • USB to VGA converter
  • RJ45 connection
  • Replace the hard drive with an SSD
  • Use a DisplayPort cable

Answer: An eSATA to USB adapter ensures compatibility between modern laptops and older eSATA storage devices.

Question 12: Network Printer Protocol
A technician is configuring a network printer. Which protocol is commonly used to send print jobs over a network?

  • POP3
  • IPP
  • SMTP
  • IMAP
  • RDP

Answer: IPP (Internet Printing Protocol) allows printing over a network.

Question 13: Single Cable for Video, Audio, and USB
A user wants to transfer video, audio, and USB data from their laptop to an external monitor using a single cable. Which port should they use?

  • USB-C with DisplayPort Alt Mode
  • HDMI
  • DVI
  • VGA
  • Ethernet

Answer: USB-C with DisplayPort Alt Mode supports video, audio, and data transfer through a single cable.

Question 14: Server Remote Management
A technician is installing a new server requiring remote management, even if the OS fails. Which port should be open for SSH remote access?

  • 3389
  • 22
  • 161
  • 53
  • 67

Answer: Port 22 is used by Secure Shell (SSH) for secure remote access.

Question 15: Surround Sound System
A user is setting up a gaming PC and needs to connect a surround sound system. Which connector should they use?

  • RJ45
  • DVI
  • VGA
  • Optical Toslink
  • eSATA

Answer: Optical Toslink provides high-quality digital audio output, ideal for surround sound systems.

Question 16: HTTPS Port
Which port does HTTPS use by default?

  • 443
  • 80
  • 25
  • 110
  • 21

Answer: Port 443 is used by HTTPS for secure web traffic, while HTTP uses port 80.

Question 17: DNS Troubleshooting
A technician is troubleshooting an internet connection where DNS resolution is failing. Which command should they run?

  • tracert
  • nslookup
  • ipconfig
  • net start
  • ping

Answer: nslookup checks domain name resolution to diagnose DNS issues.

Question 18: VoIP Protocol
A technician is setting up a VoIP phone system. Which protocol is primarily used for voice communication over the internet?

  • SIP
  • FTP
  • IMAP
  • SMB
  • RDP

Answer: SIP (Session Initiation Protocol) is used for initiating, maintaining, and terminating VoIP calls.

Question 19: HDMI to VGA Adapter
A user wants to connect a laptop with an HDMI port to a projector with only a VGA port. What adapter should they use?

  • USB to Ethernet
  • HDMI to VGA
  • DisplayPort to DVI
  • RJ45 to HDMI
  • Thunderbolt to FireWire

Answer: An HDMI to VGA adapter converts the digital HDMI signal to an analog VGA signal.

Question 20: External Hard Drive Speed
A technician is connecting an external hard drive to a laptop for fast data transfer. Which port should they use for the highest speed?

  • USB 2.0
  • VGA
  • USB 3.2
  • Ethernet
  • PS/2

Answer: USB 3.2 provides significantly faster data transfer speeds compared to older USB standards.

Closing
That’s it for the quiz! Let me know in the comments how you did. If you found this video useful, leave a like, share it, and subscribe to the channel if you’re new. See you in the next one!