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What 220-1101 covers: Mobile devices (32%) • Hardware (30%) • Networking (24%)
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A+ Core 1
A+ Core 1 (220-1101)
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What is the purpose of the crimping process in RJ45 connections?
A. Incorrect: It increases resistance to impede signal flow rather than secure connections.
B. Incorrect: Reducing wire diameter would weaken conductivity and damage the wire, not create a connection.
C. Incorrect: Insulation covers wires to prevent electrical interference, not to connect them securely.
D. Correct: It creates a secure, permanent connection between the wire and connector.
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In a scenario where a company needs to quickly provision multiple virtual machines for development purposes, which statement best describes IaaS?
A. Correct: It accurately describes IaaS by enabling users to provision, configure, and scale virtual machines on demand through a web-based interface.
B. Incorrect: It refers to SaaS (Software as a Service) rather than IaaS, which provides pre-configured software solutions ready for use without customization.
C. Incorrect: While it mentions infrastructure management, it incorrectly states that users must manage the operating systems and applications themselves, which goes against the core benefit of IaaS where these tasks are handled by the service provider.
D. Incorrect: It describes a physical server offering, not virtual machine services. IaaS focuses on providing access to virtual resources over the internet.
Which method is commonly used to initiate Bluetooth pairing?
A. Incorrect: Initiating Bluetooth pairing does not typically involve physical buttons on both devices.
B. Incorrect: Sending an email for pairing instructions is not a standard method and would be impractical.
C. Correct: Scanning for devices and selecting the one you want to pair with is the common way to initiate Bluetooth connections.
D. Incorrect: It is not how Bluetooth operates; it uses wireless signals, not voice communication.
A standard SATA data connector uses how many pins?
A. Incorrect: A standard SATA data connector does not use 4 pins.
B. Correct: A standard SATA data connector uses 7 pins.
C. Incorrect: The separate SATA power connector, not the data connector, uses 15 pins.
D. Incorrect: 40 pins are associated with older parallel ATA style connections, not SATA.
What happens when a device requests an IP address using DHCP?
A. Incorrect: It describes a destructive action that does not occur during normal DHCP operations.
B. Incorrect: While devices do send broadcast messages to request IP addresses from the network, these messages are specifically targeted at DHCP servers for address allocation, not just general access requests.
C. Incorrect: Direct connection without configuration would bypass necessary network setup and security measures that DHCP facilitates.
D. Correct: The DHCP server automatically assigns an available IP address to a device requesting one through the DHCP protocol.
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Which of the following is a key feature of a hypervisor?
A. Incorrect: But a hypervisor abstracts away from the underlying hardware to manage virtual machines.
B. Incorrect: It limits functionality; in reality, a hypervisor supports running multiple virtual machines simultaneously on one piece of hardware.
C. Incorrect: While commonly used in cloud environments, a hypervisor can also be utilized outside of them for various virtualization needs.
D. Correct: It allows multiple operating systems to run on a single piece of hardware, which is the primary function of a hypervisor.
Which statement best describes airplane mode?
A. Incorrect: It only partially disables wireless features, whereas airplane mode turns off all of them.
B. Correct: Airplane mode disables all wireless communication, including Wi-Fi and Bluetooth.
C. Incorrect: It is disabling certain hardware, but it can save battery life, the primary purpose of airplane mode is to disable wireless signals for safety reasons during flights.
D. Incorrect: There is no special flight safety feature activated by airplane mode; it simply turns off wireless communications.
What is a statement that accurately describes DDR5 RAM?
A. Incorrect: But this is not its primary distinguishing feature.
B. Incorrect: It actually has increased capacity per module compared to DDR4 RAM.
C. Incorrect: It uses a different interface from DDR4 RAM, requiring new motherboards and sockets.
D. Correct: It supports higher data transfer rates and improved power efficiency, which are key advancements over previous generations.
In a network scenario where two devices need to exchange data reliably, which statement best describes TCP's role?
A. Incorrect: It describes a feature of TCP but does not capture its primary role in ensuring reliable data delivery.
B. Incorrect: Routing packets between different networks is the responsibility of IP and other network layer protocols, not TCP.
C. Correct: It accurately states that TCP ensures data integrity and order during transmission, which is essential for reliable communication.
D. Incorrect: TCP provides a connection-oriented service rather than a connectionless one.
Which of the following is a key benefit of using IaaS?
A. Incorrect: It overstates the impact of IaaS by suggesting that IT staff are no longer needed to manage infrastructure; they still need expertise in managing cloud resources.
B. Incorrect: IaaS offers flexible and scalable infrastructure, not a fixed one, allowing users to adjust their resource allocation as needed.
C. Correct: It accurately describes how IaaS reduces the need for on-premises hardware, thereby lowering costs by shifting expenses from capital expenditures to operational ones.
D. Incorrect: IaaS typically uses standardized services rather than requiring heavy investment in custom software development.
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121 verified questions are currently in the live bank. Questions updated at May 1, 2026, 3:06 PM CDT. The daily set rotates at 10:00 AM local time, and each explanation links back to the source used to write it. Use the web set for quick practice, then switch to the app when available for larger banks and deeper review.
A+ Core 1 is tied to entry-level support work where hardware, devices, troubleshooting, and basic networking still show up every day.
- Role examples: help desk technician, desktop support specialist, field service technician, and junior IT support.
- Where it shows up: endpoint support, device troubleshooting, user support, and entry-level IT operations.
- On-the-job payoff: you need stronger fundamentals around devices, peripherals, mobile, cloud basics, and common support scenarios.
- Typical next step: It usually pairs with A+ Core 2 when the path is full A+ certification or broader service desk readiness.
A+ Core 1 usually rewards broad operational judgment across the whole exam lane, not just isolated fact recall.
- Current emphasis in this bank: Mobile devices (32%).
- Many CompTIA misses happen when two answers are both partly true but only one matches the right role, process order, or troubleshooting scope.
- Best official starting point: CompTIA A+.
The fastest path is to turn this exam into a repeatable pattern-recognition loop instead of a one-time cram session.
- Start with the free daily set closed-book so you can see which parts of the cloud and it lane still feel weak.
- Use every explanation as a checkpoint for why the right answer fits the scenario and why the other answer choices do not.
- Open the official CompTIA source when a concept keeps missing so you fix the gap at the source instead of rereading generic notes.
- Use the nearby cert pages when you need broader context around the same job path or technology stack.
The usual misses happen when learners recognize keywords but do not slow down enough to match the scenario to the exact decision the exam is testing.
- Reading for one familiar keyword and skipping the deeper clue that tells you which cloud and it concept actually fits.
- Memorizing isolated terms without checking why the right answer wins over the other answer choices in the same scenario.
- Ignoring the official CompTIA source after a miss and hoping the next question will feel easier on its own.
- Studying this page in isolation when one nearby cert page could clear up the broader pattern much faster.
The fastest path is simple: answer the set, review the reasoning, then use the score history and source links to decide what to hit next.
- Answer the free set first without looking anything up so the score reflects what is actually sticking.
- Read every explanation, especially the wrong answer choices, so the weaker options stop looking plausible next time.
- Open the linked source when a concept feels weak, then come back and repeat the question flow while the wording is fresh.
- Use the 7-day score keeper, related cert links, and comparison pages to decide what to study next instead of guessing.
- Move into the app when you want the full bank, timed reps, readiness tracking, and a steadier mobile study loop.
Use these official CompTIA resources alongside the daily practice set. They cover the provider's own exam page, study guide, or prep material.
Need adjacent CompTIA practice pages too? CompTIA practice hub.
How are A+ Core 1 questions generated?
dotCreds builds A+ Core 1 practice questions from CompTIA documentation, standards, and source-backed references, with official or primary sources preferred first. The questions are written for realistic study practice, not copied from exam dumps.
How are explanations sourced?
Each question includes a source-backed explanation and a link to the documentation or reference used to validate the answer. If an official page is too broad, dotCreds uses a reputable answer-level reference instead of pretending a generic page proves the answer.
What score do I get?
The page tracks today's answered count and accuracy for the 10-question daily set, then saves a 7-day score history on this device so you can see your recent practice trend.
Why use this site?
The site is the fastest way to start A+ Core 1 practice without installing anything. It is built for daily recall, quick weak-topic discovery, and source-backed explanations you can review immediately.
Why use the app when available?
The web page is the quick free sampler. If a dotCreds app is available for A+ Core 1, the app is better for larger banks, focused weak-domain drills, longer review sessions, and mobile study routines.