CompTIA A+ Core 1 practice questions

Question 1

An administrator is being asked which two configuration domains ipconfig refreshes when invoked. Which two services does Microsoft Learn list as targets? (Choose two.)

Accepted Answer

Dynamic Host Configuration Protocol (DHCP), which Microsoft Learn lists as one of the targets refreshed by ipconfig per the windows-commands reference page.

Accepted Answer

Domain Name System (DNS), which Microsoft Learn lists as the other target refreshed by ipconfig per the windows-commands reference page on Windows hosts.

Answer

Border Gateway Protocol (BGP) and Open Shortest Path First (OSPF) routing tables, which Microsoft Learn lists as targets refreshed by ipconfig on Windows hosts.

Answer

Hot Standby Router Protocol (HSRP) and Virtual Router Redundancy Protocol (VRRP) state, which Microsoft Learn lists as targets refreshed by ipconfig on Windows hosts.

Question 2

An organization is migrating from Windows 10 to Windows 11 and an engineer is choosing between an in-place upgrade and a side-by-side migration on a different machine. According to Microsoft, which constraint does Windows Setup itself impose?

Accepted Answer

Windows Setup can perform both clean and upgrade installations, but it does not perform computer-to-computer migrations; USMT or Windows Easy Transfer is required.

Answer

Windows Setup performs computer-to-computer migrations directly without requiring USMT, so simply re-running Setup migrates the user's apps and data.

Answer

Windows Setup only performs clean installations and not upgrade installations, so the migration must use a separate side-by-side upgrade utility on every host.

Answer

Windows Setup only performs upgrade installations and never clean installations, so a fresh deployment requires a separate clean-install utility shipped by Microsoft.

Question 3

A platform team is moving on-premises VMs into Azure Virtual Network and is asking why the transition should feel familiar to traditional network engineers. Which Microsoft-documented benefit captures that?

Accepted Answer

Virtual networks deliver scale, availability, and isolation benefits while keeping the familiar networking concepts engineers used in datacenters.

Answer

Virtual networks deliver wholly new networking concepts that do not map to any traditional datacenter primitive at all, requiring full retraining for staff.

Answer

Virtual networks deliver only IPv6 connectivity and explicitly deprecate IPv4 inside Azure, requiring all traditional network engineers to retrain on IPv6.

Answer

Virtual networks deliver only Layer 2 broadcast domains across regions, with no support for traditional routing concepts inside the Azure infrastructure.

Question 4

A developer is being onboarded to an Android device-services team and is reading the AOSP overview for the first time. Which statement most accurately summarizes what AOSP delivers to a device manufacturer?

Accepted Answer

AOSP provides a complete and fully functional implementation of the Android mobile platform that anyone may download and modify.

Answer

AOSP only ships proprietary Google components like Maps and Gmail, leaving the core operating system to be sourced from third parties.

Answer

AOSP is a reference document with no source code attached, so manufacturers must reimplement the Android stack from public RFCs alone.

Answer

AOSP is delivered exclusively as a signed binary image meant for one specific phone vendor under an exclusive yearly contract.

Question 5

An engineer is being asked how WSL fits into the virtualization continuum on a Windows host with Hyper-V available. According to Microsoft, what does WSL document about its relationship to a traditional VM?

Accepted Answer

WSL allows running a Linux environment without the need for a separate virtual machine or dual booting on the Windows host.

Answer

WSL allows running a Linux environment only inside a Hyper-V-managed VM with full guest OS, since Microsoft documents WSL as a thin Hyper-V wrapper only.

Answer

WSL allows running a Linux environment only by dual-booting the host into a Linux distribution, since Microsoft documents WSL as a multi-boot loader.

Answer

WSL allows running a Linux environment only on remote Azure-hosted VMs, since Microsoft documents WSL as a remote-desktop tool that never runs locally.

Question 6

A help desk is being asked which command refreshes a host's DHCP and DNS settings without rebooting. According to Microsoft, what does ipconfig do beyond simple display?

Accepted Answer

ipconfig displays all current TCP/IP network configuration values and refreshes DHCP and DNS settings according to the Microsoft Learn windows-commands reference.

Answer

ipconfig only edits the local registry hive to disable USB devices on the host and does not refresh DHCP or DNS at all, since Microsoft documents it as a USB-management utility.

Answer

ipconfig only updates the BIOS firmware to a newer revision and does not refresh DHCP or DNS at all, since Microsoft documents it as a firmware-management utility.

Answer

ipconfig only erases the Windows Event Log on the host and does not refresh DHCP or DNS at all, since Microsoft documents it as an event-log-management utility.

Question 7

An engineer is procuring Mac mini (2018) units for a small office and a stakeholder asks which additional ports beyond Thunderbolt 3 the unit exposes. According to Apple, what additional ports ship?

Accepted Answer

Two USB-A ports up to 5 Gb/s, an HDMI 2.0 port, and a Gigabit Ethernet port that is configurable to 10Gb Ethernet on the unit.

Answer

Three FireWire 800 ports plus a 56K analog modem and an integrated PS/2 mouse port, with no USB-A or HDMI on the back of the unit.

Answer

Three SCSI-2 connectors plus an Apple Desktop Bus port, with no Ethernet or USB-A connectivity on the back of the Mac mini at all.

Answer

Three RS-232 serial console ports plus a parallel printer port, with no Ethernet or HDMI on the back of the Mac mini chassis at all.

Question 8

An administrator is extending an AD DS schema and a stakeholder asks how authorized users actually see the directory data once it is stored. According to Microsoft, what does AD DS provide for that access?

Accepted Answer

AD DS provides a way for authorized users on the same network to access this information through the directory service's standard interfaces.

Answer

AD DS provides only an export-to-CSV nightly batch as the access path, with no online query interface available to any authorized user at all.

Answer

AD DS provides only a read-only inbound public REST endpoint as the access path, accessible from any device on the public internet at any time.

Answer

AD DS provides only an outbound replication feed to third-party CAs as the access path, with no online query interface to any authorized user.

Question 9

A SRE is investigating whether an attacker who briefly had physical access to a Mac with Apple silicon could roll the device back to an older, weaker security configuration. Which Apple-documented protection most directly blocks this attempt?

Accepted Answer

The Low-Level Bootloader checks an anti-replay value stored in the Secure Enclave so older security configurations cannot be reapplied.

Answer

The system overwrites the entire SSD at every shutdown so any attempt to roll back security configurations forces a clean reinstall.

Answer

The kernel queries Apple's iCloud entitlement service over the network on every boot to confirm the chosen policy is still current.

Answer

The user is required to retype the iCloud password during every cold boot before the OS will load any signed kernel image at all.

Question 10

An organization is being onboarded to Azure and a stakeholder asks what identity service should anchor every user and resource. According to Microsoft, which service plays that role?

Accepted Answer

Microsoft Entra ID is the backbone of identity and access management in Azure, anchoring every user and resource per the Cloud Adoption Framework guide.

Answer

Microsoft Defender for Endpoint is the backbone of identity and access management in Azure, since the cloud framework lists it as the canonical IAM provider.

Answer

Microsoft Print Server is the backbone of identity and access management in Azure, since Microsoft's documentation lists it as the canonical IAM provider.

Answer

Microsoft Excel Online is the backbone of identity and access management in Azure, since the cloud framework lists it as the canonical IAM provider on the docs.

Question 11

A field technician is being asked to walk a customer through resetting a disabled iPhone using recovery mode on an older iOS version. According to Apple, what is the documented core procedure?

Accepted Answer

The main steps involve turning off the iPhone, entering recovery mode using different button combinations depending on model, and restoring via computer.

Answer

The main steps involve broadcasting a special Bluetooth payload from another iPhone only, with no computer or button combinations involved at all per the documented procedure on the docs.

Answer

The main steps involve waiting for the iPhone to spontaneously reboot itself and skipping any computer-side restore step entirely, per Apple's recovery procedure on the docs.

Answer

The main steps involve uploading a screenshot of the lock screen to iCloud only, with no computer or button combinations involved at all in the documented procedure on the docs.

Question 12

A platform team is being asked how long a MacBook Air (M1) can run on battery and what charger ships in the box. According to Apple, which combination is documented?

Accepted Answer

Up to 15 hours wireless web and up to 18 hours of Apple TV app movie playback with a 49.9-watt-hour battery and a 30W USB-C charger.

Answer

Up to 30 hours wireless web and up to 36 hours of Apple TV app movie playback with a 99-watt-hour battery and a 140W charger on the device.

Answer

Up to 4 hours wireless web and up to 6 hours of Apple TV app movie playback with a 12-watt-hour battery and a 5W charger on the device.

Answer

Up to 8 hours wireless web and up to 9 hours of Apple TV app movie playback with a 24-watt-hour battery and a 60W MagSafe 1 charger on the device.

Question 13

An engineer is designing a private DNS layout and asks why DNS resolution has to scale across many name servers rather than living in one place. According to RFC 1035, how is the domain database actually stored?

Accepted Answer

From the resolver's viewpoint, the domain database is distributed across multiple name servers, with different portions residing in different servers.

Answer

From the resolver's viewpoint, the domain database is centralized on a single root server in the United States, with read-only mirrors in other countries.

Answer

From the resolver's viewpoint, the domain database is centralized on the local stub resolver only, so name servers are only used as a last-resort path.

Answer

From the resolver's viewpoint, the domain database is fully replicated to every authoritative server worldwide, with no partitioning of any sort possible.

Question 14

A help desk is rolling out new training and must choose between two device-encryption methods to describe so field technicians can recognize them in user-help conversations. Which pairing matches AOSP's documented methods?

Accepted Answer

File-based encryption and full-disk encryption, the two AOSP-documented methods Android uses for protecting on-device user data.

Answer

Cloud-only encryption and offline-only encryption, where the device chooses one based on whether mobile data is currently active.

Answer

Application-level encryption and SD-card-only encryption, where the platform never encrypts data outside an enrolled app sandbox.

Answer

Volume Shadow Copy and BitLocker To Go, the two AOSP-documented methods Android uses on phones for protecting user data.

Question 15

An engineer is being asked why WSL is preferred over running a full Hyper-V VM for everyday Linux tooling. According to Microsoft, what design intent does WSL document?

Accepted Answer

WSL is designed to provide a seamless and productive experience for developers who want to use both Windows and Linux at the same time.

Answer

WSL is designed only for headless render farms and not for any developer workstation use case, since Microsoft restricts it to render-farm hardware only.

Answer

WSL is designed only for cellular handsets running Windows Mobile and not for any desktop developer use case, since Microsoft restricts it to Windows Mobile only.

Answer

WSL is designed only for embedded Industrial IoT controllers and not for any developer workstation use case, since Microsoft restricts it to IIoT hardware only.

CompTIA A+ Core 1

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