CompTIA A+ Core 2 Practice Test
Preguntas frecuentes
¿Cuántas preguntas de práctica de CompTIA A+ Core 2 hay aquí?+
Un banco completo de preguntas originales de CompTIA A+ Core 2 en las áreas oficiales, con el peso del examen real y explicaciones. Gratis, sin registro.
¿Cómo es el examen CompTIA A+ Core 2?+
Unas 100 preguntas. Practica por tema aquí y luego haz el simulacro cronometrado para medir tu preparación.
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No. Cada pregunta es 100% original, escrita de fuentes públicas con explicaciones. Nunca copiamos preguntas reales ni material de preparación pagado.
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La práctica de PrepPass está en inglés, 中文 y español. El examen oficial es en inglés — cambia el idioma de las preguntas a inglés para ensayar la terminología del día del examen.
Preguntas de práctica de ejemplo
Algunas preguntas reales de este banco gratuito, con explicaciones completas. Usa la herramienta de arriba para el banco completo.
- 1. Operating Systems
Which Windows edition is designed for large enterprises and is the only one that supports joining an on-premises Active Directory domain as well as BitLocker, but is licensed through volume agreements rather than retail?
- a.Windows Enterprise
- b.Windows Education
- c.Windows Home
- d.Windows Pro for Workstations
Respuesta: a
Explicación: Windows Enterprise is aimed at large organizations and is distributed through volume licensing rather than retail. It supports domain join, BitLocker, and advanced management features. Home lacks domain join and BitLocker.
- 2. Operating Systems
Which macOS utility is used to install applications simply by dragging their bundle into a specific folder, and where are most applications stored?
- a.The Dock; /System
- b.Terminal; /bin
- c.Launchpad; /Users
- d.Finder; the Applications folder
Respuesta: d
Explicación: In macOS, most apps are self-contained bundles installed by dragging them into the Applications folder using Finder. Launchpad only launches apps, and the Dock is a shortcut bar. System binaries live elsewhere.
- 3. Operating Systems
A macOS user wants to force an unresponsive application to close. Which method accomplishes this?
- a.Delete the app from Applications
- b.Press Command+Q once
- c.Restart the router
- d.Press Command+Option+Esc to open Force Quit
Respuesta: d
Explicación: Command+Option+Esc opens the Force Quit Applications window, letting the user end a frozen app. Command+Q requests a normal quit that a hung app may ignore. Deleting the app is unnecessary for a temporary hang.
- 4. Security
An attacker follows an authorized employee through a secured door before it closes, without presenting their own badge. What is this physical technique called?
- a.Phishing
- b.Shoulder surfing
- c.Whaling
- d.Tailgating
Respuesta: d
Explicación: Tailgating (piggybacking) is when an unauthorized person follows an authorized one through a controlled entrance. Shoulder surfing is watching someone enter credentials. Whaling is phishing that targets executives.
- 5. Security
Which best practice reduces the risk that a stolen password alone can compromise an account?
- a.Requiring multifactor authentication
- b.Disabling account lockout
- c.Writing passwords on a sticky note
- d.Reusing one password everywhere
Respuesta: a
Explicación: Requiring MFA means a stolen password is not enough because an additional factor is needed. Reusing passwords and disabling lockout increase exposure, and writing passwords down risks disclosure.
- 6. Security
Which practice helps protect users from entering credentials on a fraudulent website that mimics a real one?
- a.Turning off automatic updates
- b.Disabling the firewall
- c.Reusing the same password everywhere
- d.Verifying the site's URL and valid HTTPS certificate
Respuesta: d
Explicación: Checking the exact domain and confirming a valid HTTPS certificate helps users detect lookalike phishing sites before entering credentials. Disabling the firewall or reusing passwords increases risk rather than reducing it.
- 7. Software Troubleshooting
A user cannot install updates and sees low-disk-space warnings on the Windows system drive. Which action most directly addresses the root cause?
- a.Disable the network adapter
- b.Change the desktop wallpaper
- c.Increase the monitor brightness
- d.Free up space with Disk Cleanup and remove unneeded files
Respuesta: d
Explicación: Update failures tied to low disk space are resolved by freeing storage, for example with Disk Cleanup or by removing unneeded files. The other actions do not affect available disk space.
- 8. Software Troubleshooting
During malware remediation best practices, when should the technician re-enable System Restore and create a fresh restore point?
- a.After the system is verified clean, to establish a new known-good point
- b.Before scanning, so restore points are preserved
- c.Never, System Restore must stay off
- d.Only if the antivirus fails
Respuesta: a
Explicación: Best practice is to disable System Restore during cleanup so infected restore points are purged, then re-enable it and create a new restore point once the system is confirmed clean. Preserving infected restore points risks reinfection.
- 9. Operational Procedures
Which scripting file type is native to Windows and commonly used to automate administrative tasks with cmdlets?
- a..ps1 (PowerShell)
- b..py (Python) only
- c.VBScript only
- d..sh (Bash)
Respuesta: a
Explicación: PowerShell scripts (.ps1) use cmdlets and are the native automation language for Windows administration. Bash (.sh) is native to Linux/Unix. Python and VBScript can be used but .ps1 is the Windows-native choice described.
- 10. Operational Procedures
Which purpose does a 'bill of materials' (BOM) or asset inventory serve in IT operations?
- a.It measures Wi-Fi signal strength
- b.It encrypts the hard drive
- c.It configures the firewall
- d.It lists components or assets and their details for tracking and procurement
Respuesta: d
Explicación: A bill of materials or asset inventory itemizes components or devices with relevant details, supporting tracking, procurement, and lifecycle management. It does not measure signal strength or configure security controls.