Practice session

{{ summaryValue }}

{{ summaryLine }}

Build an exam-prep round

Unofficial CompTIA A+ Core 1 (220-1201), V15 · objectives 4.0. This curated 40-question English bank practises concepts; it does not simulate the exam’s performance-based tasks, timing or domain-weighted selection. No affiliation or endorsement by CompTIA.

Authored concept checks or applied scenarios; these are not official difficulty ratings.

Official domain emphasis: Mobile 13%, Networking 23%, Hardware 25%, Virtualization/cloud 11%, Troubleshooting 28%. Rounds here select uniformly from your focus. Read the official objectives. The provider recommends 12 months of hands-on support experience; A+ certification requires both Core 1 and Core 2.

Optional. Leave blank for core1-practice; keep a seed to reproduce question and option order.

{{ seedStatus }}

{{ examSetupValidation }}

{{ answeredCount }} of {{ questionCount }} answered · {{ Math.round(progressPercent) }}%

{{ progressStatusLine }}

Question {{ examCursor + 1 }} of {{ questionCount }}

{{ currentQuestion.stem }}

{{ currentQuestion.accessible_clue }}

Answer recorded. Correct answers and explanations appear when you finish the round.

Review this practice round

{{ resultLead }}

This practice score describes only these authored items. It does not predict passing or convert to CompTIA’s scaled score. Continue hands-on hardware, network and performance-based practice, and study the full official objectives.

Readiness review

{{ readinessReviewTitle }}

{{ readinessReviewLine }}

Use each missed item’s objective number to revisit the official outline, then practise the task on appropriate equipment. Domains absent from the chart were not sampled in this round.

{{ card.label }}
{{ card.value }}
{{ card.note }}

Missed answer review

  1. {{ item.prompt }}

    Your answer: {{ item.selected_answer_label }}

    Correct answer: {{ item.correct_answer_label }}

    {{ item.explanation }}

    Source: {{ item.source.label }} · {{ item.source.version }} · {{ item.source.license }}

Domain performance

Correct and missed answers by the canonical category rows for this round.

Loading domain-performance chart…

{{ examChartStatus }}

{{ examChartExportStatus }}

Answer ledger

Question ID Prompt Domain Your answer Correct answer Outcome Explanation Source Copy
{{ row.question_id }} {{ row.prompt }} {{ row.category_label }} {{ row.selected_answer_label }} {{ row.correct_answer_label }} {{ row.outcome_label }} {{ row.explanation }}

{{ examLedgerStatus }}

CompTIA A+ Core 2 Exam Prep Practise A+ Core 2 support decisions with 32 unofficial 220-1202 questions and sourced explanations that distinguish inspection from repair.
IPv4 Subnetting Quiz Practice IPv4 subnetting from /0 to /32 with explained answers and repeatable rounds that let you retry only the questions you missed.
Internet Protocol version 4 (IPv4) Subnet Calculator Calculate an IPv4 subnet boundary from CIDR or a dotted mask, then check usable hosts, special-purpose ranges and reserve-adjusted capacity.
CompTIA Network+ Exam Prep Practise CompTIA Network+ N10-009 with 35 original questions, sourced answer explanations and focused retries for missed concepts.

A USB-C connector can fit a laptop while the connected display remains blank. The port may lack the required video capability, or the cable or adapter may not support the connection. Checking those capabilities can prevent replacing a working device for a compatibility problem.

CompTIA A+ Core 1 concerns practical hardware and connectivity decisions like this. The 220-1201 V15 syllabus covers mobile devices, networking, computer hardware, virtualization and cloud computing, and hardware and network troubleshooting. Preparation involves understanding what each component or service does, then using the details of a support problem to choose a relevant check rather than an unrelated repair.

An office printer that needs a consistent network address presents a different problem from a server that is reachable by address but not by name. Four networking terms help separate the jobs involved.

Internet Protocol (IP) address
An address used to identify and reach a device's network interface.
Default gateway
A router used to reach destinations beyond the local network when no more specific route applies.
Dynamic Host Configuration Protocol (DHCP)
A service that supplies leased addresses and related network settings. A reservation associates a particular client with a consistent leased address.
Domain Name System (DNS)
A service that resolves names to records such as IP addresses. Resolving a server's name and connecting to its address are separate operations.

That distinction changes the investigation. A failed name lookup after a successful connection to the same server's known IP address points toward checking DNS, not immediately replacing the network cable. It narrows the fault without proving that every application or network path is healthy.

Cloud service models describe who manages the service. With infrastructure as a service (IaaS), the customer manages the guest operating system and applications on rented infrastructure. With software as a service (SaaS), the customer uses a provider-operated application. Virtualization describes how workloads run, rather than the service arrangement. A virtual machine (VM) has its own guest operating system and kernel, the operating system's core. A process-isolated container shares the host kernel, so its compatibility requirements still matter.

Selecting a correct answer and performing the task are different achievements. The official objectives recommend 12 months of hands-on IT support experience, and the A+ credential requires passing both Core 1 and Core 2. Multiple-choice study can expose misunderstandings, but it does not establish the ability to diagnose equipment, perform repairs or complete performance-based exam tasks.

Physical warning signs also take priority over experimentation. A swollen laptop battery calls for stopping use, disconnecting external power and arranging manufacturer-guided service, not pressing the case closed or puncturing the cell. Practical study must stay within the equipment's service instructions and the learner's training.

How to Use This Tool:

Choose a broad review or a focused practice round. The English questions are independently authored and unofficial, with no affiliation or endorsement by CompTIA.

  1. Choose a Domain and Difficulty. The starting choices are All domains and Mixed difficulty. Foundations contains concept checks, while Applied scenarios asks you to use the circumstances described. These are authored groupings, not official difficulty ratings.
  2. Set Question count. The default round contains five questions. All domains with mixed difficulty offers 1, 3, 5, 10, 20 or 40 questions; narrower selections have smaller menus. When a change of focus makes the previous count unavailable, it changes to the new selection's default. If Start exam practice is disabled, choose an available focus, feedback mode and count.
  3. Select Feedback. Explain after each answer reveals the correction and explanation before you advance. Review answers at the end records each choice without showing whether it was correct until you finish. Both modes are untimed and use the same scoring rule.
  4. Enter an optional Replay seed under Advanced. Leaving it blank uses core1-practice, so blank does not request fresh randomness. Keep the seed, focus, count and feedback mode unchanged to reproduce a round while the question bank remains unchanged. Leading and trailing spaces are removed. The 128-character limit counts some emoji as two characters. An overlong value triggers a warning and falls back to the default seed.
  5. Select Start exam practice, then choose one of the four answers for each question. Selecting an answer submits and locks it immediately; there is no separate submit step or in-round answer-editing control. Use Next question after each recorded response, then View results after the final one.
  6. Review the explanations in Missed answer review and the complete Answer ledger. Use Retry missed to practise only the incorrect items or Replay same seed to repeat the exact round. Try a new seed requests another seeded round, which may repeat familiar questions. Use Change setup to choose a broader focus after a targeted retry.

Interpreting Results:

During the round, the headline and progress bar count questions answered, not answers correct. At completion, the headline changes to correct answers out of all questions in that round. The Readiness review heading introduces study guidance, not a validated readiness measure. Even Perfect round describes only the selected questions.

Domain performance shows counts of correct and missed answers, not official weighted scores. A longer bar may simply mean that more questions came from that domain. Domains absent from the chart were not sampled, and a single correct answer is little evidence about an entire domain. Check the actual missed questions before deciding which topic needs more study.

Each explanation includes an objective number that can guide a return to the official outline and a suitable hands-on exercise. The source reference provides context for the correction; it is not proof that every related subtopic was assessed. Keep the focus, round size and feedback mode consistent when comparing attempts, and distinguish first attempts from retries after seeing the answers. Improvement on familiar questions is useful reinforcement, not evidence of a guaranteed exam pass.

If the chart is unavailable, use Retry chart or continue with the Answer ledger and written domain counts.

Technical Details:

A single-choice practice score counts matches to the authored answer for each question's stated conditions. Each question presents one authored answer and three fixed alternatives. Domain and difficulty determine which questions are eligible, but neither changes the points awarded.

Points, accuracy and completion

Each correct response earns one point and each incorrect response earns zero. There is no partial credit, negative marking or time bonus. Let N be the total questions in the round, A the number answered and C the number correct. S is the score in points, R is its percentage equivalent and P is completion progress in percent.

S = C R = 100×CN P = 100×AN

Possible points equal N, so the point range is zero to N and both percentages range from zero to 100. The denominator stays at the full round size even before completion. An unanswered question contributes no point but is not counted as incorrect or included among missed items. Completion requires every selected question to be answered.

For a ten-question round with five answers submitted and four correct, progress is 50%, while the score's percentage equivalent is 40%. There is one incorrect answer and five unanswered questions. The in-round headline reads 5/10 answered, not a five-point score. Raw accuracy is retained without rounding. Progress percentages beside the bar are rounded to the nearest whole percent, with half-percent ties rounded up; question counts and the final correct-out-of-total result remain exact integers.

Round condition Review message Meaning
Fewer than all questions answered No completed-round review The attempt is still in progress.
All answered, at least one incorrect Start with the missed answers Review the incorrect responses and their explanations.
All answered and all correct Perfect round No incorrect responses occurred in this round.

No intermediate percentage band or practice passing cutoff is applied. Domain totals partition the round's answers into the five subject categories; they do not reweight the overall score.

Coverage and question selection

The bank contains 40 original English questions. The authored coverage declaration identifies selected concepts across 27 numbered objective groups in the 220-1201 V15 objectives document, version 4.0. These references are topic mappings, not a claim that every subobjective, procedure or exam question format is covered.

Domain Official exam emphasis Bank questions Foundations Applied scenarios
1.0 Mobile Devices 13% 6 3 3
2.0 Networking 23% 8 4 4
3.0 Hardware 25% 10 6 4
4.0 Virtualization and Cloud Computing 11% 6 3 3
5.0 Hardware and Network Troubleshooting 28% 10 3 7
Total 100% 40 19 21

The official percentages describe the examination's subject emphasis. Practice questions are selected uniformly from the chosen pool without replacement, so the same item does not occur twice within a round. There are no official domain quotas. Selecting the entire mixed bank includes all 40 items in the proportions shown above, not the official percentages.

Normal setup menus offer 1, 3, 5, 10 and 20 questions where those sizes fit the selected pool, plus the full pool size. A missed-only retry instead uses exactly the number missed, including counts not offered by the normal setup menu. Its score starts again with that smaller denominator.

A replay seed controls question selection and option order, not the creation of new question text. Each question retains its own four alternatives. Replaying the same round reproduces both orders. A new seed can change a draw or its order but cannot guarantee unseen questions, and selecting a complete pool necessarily repeats its membership.

Published exam requirements are separate

The 220-1201 V15 objectives describe an examination of up to 90 questions in 90 minutes, with multiple-choice and performance-based questions. They specify a passing score of 675 on a scale of 100 to 900. That scaled score is not a percentage of this practice bank and has no supported conversion from its results. These rounds do not reproduce the exam's timing, performance-based tasks or domain-weighted selection. Before booking, confirm the exam code and availability for your intended test location and language with the provider.

Privacy Notes:

Answers are scored in the browser, but the attempt is also represented in the page address. The encoded information includes the seed, chosen question set, submitted answers and current position. It is not encrypted. Anyone receiving that address can restore the represented attempt, including its answers, while it remains compatible with the question bank.

An attempt address can remain in browser history and be sent to the site when loaded or reloaded. Avoid personal or confidential information in a replay seed, and treat shared attempt links and exported answer ledgers as disclosures of your responses. Chart and document resources can load over the network, and opening reference links contacts other sites. Browser scoring therefore does not imply a fully offline session or that attempt information never leaves the device.

A malformed or incompatible saved address can produce Saved attempt unavailable. Start a new round using the setup choices. If a proposed change cannot be saved, Attempt unchanged means the change was rejected and the earlier attempt and address remain intact. Check the displayed answer and position before continuing.

Worked Examples:

Correcting a gateway mistake

Select 2.0 Networking, Applied scenarios and four questions. Suppose the other three answers are correct, but the gateway question is missed. The result is 3/4, equivalent to 75%, and the domain chart records three correct and one missed. For the stated PC address 192.168.40.25/24 and router address 192.168.40.1, the gateway is 192.168.40.1. In this conventional /24 subnet, 192.168.40.0 identifies the network and 192.168.40.255 is its broadcast address, not a router address to assign as the gateway. The correction points to objective 2.6. Choosing Retry missed creates a one-question round; answering correctly gives 1/1. That confirms the corrected answer on a familiar item, not a fresh four-question assessment.

References: