Q1. Which type of cloud service provides virtual machines?
- A.SaaS
- B.PaaS
- C.IaaS✓ Correct
- D.DaaS
Explanation: IaaS (Infrastructure as a Service) provides virtualized computing resources like VMs. (Relevant for 1101 for cloud concepts) Learn more.
CompTIA A+ Core 2 Practice Questions: More Practice Questions
31 free, exam-style CompTIA A+ Core 2 (220-1102) practice questions covering More Practice Questions. Each question shows the correct answer and a clear explanation. Ready for the real thing? Take the full timed quiz below.
Q2. What is the purpose of virtualization?
- A.Increase RAM speed
- B.Run multiple OS instances on one machine✓ Correct
- C.Boost GPU performance
- D.Defragment hard drives
Explanation: Virtualization allows multiple operating systems to run simultaneously on a single physical machine. (Relevant for 1101 virtualization concepts) Learn more.
Q3. Which of the following is a key characteristic of a Type 1 hypervisor?
- A.It runs on top of a host operating system.
- B.It is installed directly on bare metal hardware.✓ Correct
- C.It is primarily used for desktop virtualization on workstations.
- D.It requires fewer hardware resources than a Type 2 hypervisor.
Explanation: A Type 1 hypervisor, also known as a bare-metal hypervisor, is installed directly onto the physical hardware of the server. (Relevant for 1101 virtualization concepts) Learn more.
Q4. Which cloud computing model provides on-demand access to computing resources like virtual machines, storage, and networks, where the customer manages the OS and applications?
- A.SaaS (Software as a Service)
- B.PaaS (Platform as a Service)
- C.IaaS (Infrastructure as a Service)✓ Correct
- D.DaaS (Desktop as a Service)
Explanation: IaaS provides the fundamental building blocks for cloud IT. (Relevant for 1101 cloud concepts) Learn more.
Q5. Which of the following mobile device security features allows a user to remotely locate and erase their device if it is lost or stolen?
- A.VPN configuration
- B.App sandboxing
- C.Biometric authentication
- D.Remote wipe/lock✓ Correct
Explanation: Remote wipe and remote lock are features (often part of Find My iPhone or Android's Find My Device) that allow a user to secure a lost or stolen device. (Relevant for 1101 mobile devices - application support/MDM basics) Learn more.
Q6. Which of the following biometric authentication methods is commonly used for unlocking smartphones?
- A.Retina scan
- B.Voice recognition
- C.Fingerprint scan✓ Correct
- D.Signature dynamics
Explanation: Fingerprint scanning is a widely adopted biometric authentication method on smartphones. (Relevant for 1101 mobile devices) Learn more.
Q7. Which of the following mobile device security features allows an administrator or owner to remotely locate, lock, and potentially erase all data from the device if it is lost or stolen?
- A.VPN configuration
- B.App sandboxing
- C.Biometric authentication
- D.Remote wipe/lock (MDM feature)✓ Correct
Explanation: Remote wipe and remote lock are critical security features, often managed through Mobile Device Management (MDM) solutions or built-in services like Apple's Find My or Android's Find My Device. They allow for the protection of sensitive data on lost or stolen devices. Learn more.
Q8. Which of the following biometric authentication methods is commonly integrated into smartphones for unlocking the device and authorizing payments by recognizing unique physiological traits?
- A.Retina scan
- B.Voice recognition pattern
- C.Fingerprint scan✓ Correct
- D.Keystroke dynamics
Explanation: Fingerprint scanning is a widely adopted and convenient biometric authentication method on smartphones. It uses sensors to capture and match the unique patterns of a user's fingerprint for secure access. Learn more.
Q9. A user wants to prevent unauthorized devices from connecting to their SOHO wireless router. Which of the following security measures would be MOST effective for this specific goal, assuming strong encryption is already in place?
- A.Disabling SSID broadcast
- B.Changing the default admin password
- C.Configuring MAC filtering✓ Correct
- D.Enabling QoS
Explanation: MAC filtering allows you to create a list of allowed (or denied) MAC addresses. (Relevant for 1101 SOHO network configuration) Learn more.
Q10. A technician is setting up a new SOHO router. To ensure that only specific, pre-approved client devices can connect to the wireless network, which feature should be configured?
- A.Port forwarding
- B.DMZ (Demilitarized Zone)
- C.WPA3 encryption
- D.MAC address filtering✓ Correct
Explanation: MAC address filtering allows an administrator to define a list of MAC addresses that are permitted (or denied) access. (Relevant for 1101 SOHO network config) Learn more.
Q11. A user wants to prevent unauthorized devices from connecting to their SOHO wireless router by specifying a list of allowed hardware addresses. Which security measure should they configure?
- A.Disabling SSID broadcast
- B.Changing the default administrator password
- C.Configuring MAC filtering✓ Correct
- D.Enabling Quality of Service (QoS)
Explanation: MAC (Media Access Control) filtering allows an administrator to create a whitelist of MAC addresses that are permitted to connect to the wireless network, or a blacklist of those that are denied. This provides a layer of control over which specific devices can access the network. Learn more.
Q12. What is a significant security risk associated with leaving the default administrator username and password unchanged on a SOHO router?
- A.It will cause the router to overheat and fail.
- B.It limits the number of devices that can connect to the network.
- C.It makes the router highly vulnerable to unauthorized access and compromise by attackers.✓ Correct
- D.It prevents the router from receiving firmware updates.
Explanation: Default credentials for routers are widely known and easily found online. Attackers can scan for devices using these defaults to gain unauthorized access, change settings, install malware, or use the router as part of a botnet. Learn more.
Q13. Which cloud service model provides a platform for developers to build and deploy applications?
- A.IaaS
- B.PaaS✓ Correct
- C.SaaS
- D.DaaS
Explanation: PaaS (Platform as a Service) provides tools and environments for app development. (Relevant for 1101 cloud concepts) Learn more.
Q14. Which cloud service model provides software applications over the internet?
- A.IaaS
- B.PaaS
- C.SaaS✓ Correct
- D.DaaS
Explanation: SaaS (Software as a Service) delivers software applications over the internet. (Relevant for 1101 cloud concepts) Learn more.
Q15. Which cloud service model provides a platform for developers to build applications?
- A.IaaS
- B.PaaS✓ Correct
- C.SaaS
- D.DaaS
Explanation: PaaS (Platform as a Service) delivers a framework for developers to build, test, and deploy applications without managing underlying hardware or infrastructure. (Relevant for 1101 cloud concepts) Learn more.
Q16. What is the purpose of a hypervisor in virtualization?
- A.Manage network traffic
- B.Create and run virtual machines✓ Correct
- C.Encrypt stored data
- D.Monitor CPU temperature
Explanation: A hypervisor (Type 1 or 2) allocates hardware resources to VMs. (Relevant for 1101 virtualization concepts) Learn more.
Q17. Which of the following is a characteristic of a Type 1 hypervisor?
- A.Runs on top of an OS
- B.Runs directly on hardware (bare-metal)✓ Correct
- C.Only supports Windows VMs
- D.Slower than Type 2
Explanation: Type 1 hypervisors (e.g., VMware ESXi) run directly on hardware. (Relevant for 1101 virtualization concepts) Learn more.
Q18. Which Windows feature allows you to create and manage virtual machines?
- A.Hyper-V✓ Correct
- B.BitLocker
- C.Task Manager
- D.Disk Management
Explanation: Hyper-V is a native hypervisor in Windows that lets users create, manage, and run virtual machines. (Relevant for 1101 client-side virtualization) Learn more.
Q19. A user wants to configure two hard drives for maximum performance without any data redundancy. Which RAID level should be implemented?
- A.RAID 0✓ Correct
- B.RAID 1
- C.RAID 5
- D.RAID 10
Explanation: RAID 0 (striping) writes data across multiple drives simultaneously, significantly increasing read/write performance. (Relevant for 1101 hardware - RAID levels) Learn more.
Q20. A user wants to configure a storage solution that provides both high performance (striping) and data redundancy (mirroring) using at least four drives. Which RAID level BEST meets these requirements?
- A.RAID 0
- B.RAID 1
- C.RAID 5
- D.RAID 10 (1+0)✓ Correct
Explanation: RAID 10 (also known as RAID 1+0) combines mirroring (RAID 1) and striping (RAID 0). (Relevant for 1101 hardware - RAID levels) Learn more.
Q21. A user wants to configure two hard drives in a computer for maximum read/write performance by spreading data across both drives, without any concern for data redundancy. Which RAID level should be implemented?
- A.RAID 0 (Striping)✓ Correct
- B.RAID 1 (Mirroring)
- C.RAID 5 (Striping with Parity)
- D.RAID 10 (Striping of Mirrors)
Explanation: RAID 0, also known as striping, writes data across multiple drives simultaneously. This significantly increases read and write performance but offers no fault tolerance; if one drive fails, all data in the array is lost. Learn more.
Q22. According to CompTIA's troubleshooting methodology, what is the step that should be performed immediately AFTER establishing a theory of probable cause?
- A.Identify the problem.
- B.Test the theory to determine the cause.✓ Correct
- C.Establish a plan of action to resolve the problem.
- D.Verify full system functionality.
Explanation: After identifying the problem and establishing a theory, the next logical step in the CompTIA troubleshooting methodology is to test that theory. (Relevant for 1101 troubleshooting methodology) Learn more.
Q23. According to CompTIA's troubleshooting methodology, what is the step that should be performed immediately AFTER a theory of probable cause has been established?
- A.Identify the problem symptoms and user changes.
- B.Test the theory to determine the actual cause.✓ Correct
- C.Establish a plan of action to resolve the problem and implement the solution.
- D.Verify full system functionality and, if applicable, implement preventative measures.
Explanation: The CompTIA troubleshooting methodology follows a logical sequence. After identifying the problem and establishing a theory of probable cause, the next step is to test that theory to confirm if it's the correct cause of the issue before proceeding to a plan of action. Learn more.
Q24. A user reports that their mobile phone's battery drains much faster than usual, even with light usage. Which of the following is a common cause for this issue?
- A.Outdated Wi-Fi password
- B.A rogue application consuming excessive resources✓ Correct
- C.Insufficient storage space
- D.Screen brightness set too low
Explanation: A poorly optimized or malfunctioning application running in the background can consume significant CPU resources. (Relevant for 1101 mobile device troubleshooting - application support) Learn more.
Q25. A user reports that their mobile phone's battery drains much faster than usual, even with light usage, and the device sometimes feels warm. Which of the following is a common cause for this issue that a technician should investigate?
- A.An outdated Wi-Fi password causing connection attempts
- B.A rogue or poorly optimized application consuming excessive CPU resources in the background✓ Correct
- C.Insufficient internal storage space on the device
- D.The screen brightness being set too low, confusing the power management
Explanation: A misbehaving application (rogue app or even a legitimate app with a bug) can get stuck in a loop or continuously use CPU, GPS, or network resources in the background. This leads to excessive battery drain and can cause the device to heat up. Checking battery usage by app statistics can help identify such culprits. Learn more.
Q26. A user reports their laptop casing is bulging near the keyboard and the trackpad is difficult to click. What is the MOST likely cause and recommended action?
- A.Failing hard drive; replace the drive
- B.Swollen lithium-ion battery; discontinue use and replace battery safely✓ Correct
- C.Overheating CPU; clean fans and reapply thermal paste
- D.Loose internal cables; open and reseat all connections
Explanation: A bulging laptop casing is a strong indicator of a swollen lithium-ion battery. (Relevant for 1101 mobile device/hardware troubleshooting & safety) Learn more.
Q27. A user reports their laptop casing is noticeably bulging near the keyboard area and the trackpad has become difficult to click or is raised. What is the MOST likely cause of this physical deformation, and what is the recommended immediate action?
- A.Failing hard drive creating excessive heat; replace the hard drive immediately.
- B.Swollen lithium-ion battery; discontinue use, power off, unplug, and arrange for safe battery replacement.✓ Correct
- C.Overheating CPU causing internal components to expand; clean fans and reapply thermal paste.
- D.Loose internal cables pushing against the casing; open the laptop and reseat all connections.
Explanation: A bulging laptop casing, especially around the battery area, is a strong indicator of a swollen lithium-ion battery. This is a hazardous condition as the battery could leak or catch fire. The device should be powered off, unplugged, and not used until the battery can be safely replaced by a qualified technician. Learn more.
Q28. A Windows user encounters a Blue Screen of Death (BSOD) in Windows with an error message like 'IRQL_NOT_LESS_OR_EQUAL'. This type of error MOST commonly indicates an issue with:
- A.Hard drive failure
- B.Faulty RAM or incompatible device driver✓ Correct
- C.Network connectivity loss
- D.Malware infection
Explanation: The 'IRQL_NOT_LESS_OR_EQUAL' BSOD error typically points to a problem with a device driver, system service, or incompatible hardware, often related to memory access violations. (Relevant for 1101 hardware troubleshooting - RAM/drivers) Learn more.
Q29. A Windows user frequently encounters a Blue Screen of Death (BSOD) with an error message like 'IRQL_NOT_LESS_OR_EQUAL'. This type of error MOST commonly indicates an issue with:
- A.A failing hard drive or SSD with bad sectors.
- B.A faulty RAM module or an incompatible/corrupt device driver.✓ Correct
- C.Persistent network connectivity loss to the default gateway.
- D.A severe malware infection modifying system files.
Explanation: The 'IRQL_NOT_LESS_OR_EQUAL' BSOD error typically points to a problem where a kernel-mode driver or system service attempted to access paged memory at an invalid Interrupt Request Level (IRQL). This is often caused by faulty RAM, an incompatible device driver, or a problematic system service. Learn more.
Q30. A user is experiencing no network connectivity. They have checked physical connections. Which command-line utility would be MOST useful for checking if their computer has a valid IP address?
- A.ping
- B.tracert
- C.ipconfig (Windows) / ifconfig (Linux)✓ Correct
- D.netstat
Explanation: `ipconfig` (on Windows) or `ifconfig`/`ip addr` (on Linux/macOS) displays the current TCP/IP network configuration values. (Relevant for 1101 network troubleshooting) Learn more.
Q31. According to CompTIA's troubleshooting methodology, what is the step that should be performed AFTER a plan of action to resolve the problem has been implemented and the solution tested?
- A.Establish a new theory of probable cause.
- B.Document findings, actions, and outcomes.✓ Correct
- C.Identify the problem again.
- D.Escalate the problem immediately.
Explanation: After implementing the solution and verifying full system functionality, the final step is to document the findings. (Relevant for 1101 troubleshooting methodology) Learn more.