CompTIA A+ Core 1 - All Domains
Community bank · Updated Aug 15, 2026
| Certification | A+ (Core 1) (220-1101) |
| Questions | 385 |
| Passing Score | 70% |
| Format | 100% Multiple Choice |
| Sessions Logged | 1,757 |
| Your progress | Log in / Register to track times taken, best score, questions mastered, and coverage on this quiz. |
| Rating |
Certification Summary
CompTIA A+ 220-1101 is the baseline ticket for the new hire who needs to prove they can handle a bench repair or a field tech dispatch. You sit this exam when you are trying to land your first role where you physically touch the hardware or answer the phones for a busy MSP.
Hardware, Networking, and Hardware and Network Troubleshooting make up over half the exam. Expect scenarios where a user is yelling that their printer is offline or their machine will not pull an IP address, forcing you to pick the right command or physical check from a list. The test also covers mobile devices and cloud concepts, specifically matching laptop components or identifying virtual machine settings that stop a user from reaching the company server.
Topics covered
Mobile Devices63 questions
- Install and configure laptop hardware and components18 q
- Compare and contrast display components5 q
- Set up and configure accessories and ports11 q
- Configure network connectivity and application support29 q
Networking78 questions
- Compare and contrast TCP and UDP ports, protocols, and their purposes4 q
- Explain wireless networking technologies7 q
- Summarize services provided by networked hosts14 q
- Explain common network configuration concepts14 q
- Compare and contrast common networking hardware devices10 q
- Configure basic wired/wireless SOHO networks13 q
- Compare and contrast internet connection types, network types, and their characteristics7 q
- Explain networking tools and their purposes9 q
Hardware95 questions
- Explain basic cable types and their connectors, features, and purposes12 q
- Install the appropriate RAM9 q
- Select and install storage devices17 q
- Install and configure motherboards, CPUs, and add-on cards25 q
- Install or replace the appropriate power supply9 q
- Deploy and configure multifunction devices/printers and settings9 q
- Install and replace printer consumables6 q
- Compare and contrast display components and attributes8 q
Virtualization and Cloud Computing58 questions
- Summarize cloud-computing concepts25 q
- Summarize aspects of client-side virtualization33 q
Hardware and Network Troubleshooting90 questions
- Troubleshoot problems related to motherboards, RAM, CPU, and power12 q
- Troubleshoot and diagnose problems with storage drives and RAID arrays12 q
- Troubleshoot video, projector, and display issues12 q
- Troubleshoot common issues with mobile devices16 q
- Troubleshoot and resolve printer issues13 q
- Troubleshoot problems with wired and wireless networks25 q
Uncategorized1 question
Contributors
People who added questions to this bank.
- lisadaniellee1 question
- deppaotoko1 question
- techlinks291 question
- c6_x91 question
- highflying1 question
- DriftinHD1 question
- MeLurkaLongTime1 question
- Whatsadamnusername1 question
- Dentrecheigh1a1 question
- MyDownvoteFetish1 question
- nizzi111 question
- AirKing111 question
- GoodwinOxworth1 question
- JJFromApple51 question
- freedom_and_equality1 question
- BustyMetropolis1 question
- Tylerpipy1 question
- tippi_toes1 question
- sa_xix1 question
- YouMahNerfHerder1 question
- heylookapizza1 question
- justchise1 question
- Darthmonk1 question
- ilikec0lors1 question
- DirtyBernard1 question
- gogetmethatdonut1 question
- enteredthematrix1 question
- RayShmurda61 question
- elojk1 question
- data_ninja_monkey1 question
- warderbob1 question
- allisonmcheine1 question
- Lost-n-Confused281 question
- newcalgarian1 question
- common_bird1 question
- BenCarmine211 question
- dutdotdot1 question
- NOT_FOOD_PORN1 question
- DICKHEAD_ATX_DRIVER1 question
- buying1stcar1 question
- Houki011 question
- XmattbeeX1 question
- Retnaburn1 question
- MBSUPERSPAZZ1 question
- redlood1 question
- 54vior1 question
- AGREEwithOPgiveKARMA1 question
- kitten_penguin_lovin1 question
- naughtynickthrowaway1 question
- DingoCobbs1 question
- nirvanafreak921 question
- EvilMuku1 question
- XiND3R1 question
- Mondofrog1 question
- DonGoethe1 question
- WOOOOOT1 question
- eriktheredhead1 question
- tuvalu111 question
- Irotholoro1 question
- KingTutsBustedNut1 question
- Sschoy1 question
- ohioan4bernie1 question
- str8bro4upvotes1 question
- GhettoBenz1 question
- champi_master1 question
- PurpNap1 question
- waterloo_is_a_meme1 question
- jimmux1 question
- iicuitahx741 question
- tauretta1 question
- ContortionBreaks1 question
- Tony_Spilotro1 question
- willisrocks1 question
- VichyFlowers1 question
- democracyforall1 question
- snippysta1 question
- GivesUnrelatedAdvice1 question
- tnav631 question
- Malcom_Gold1 question
- aceinsubk1 question
- lukewilliams951 question
- AljoseHD1 question
- superhappycat1 question
- changhong1 question
- ruduki21 question
- cobby1 question
- MBA_Marshall1 question
- cowboyhero1 question
- IceWalkerLover1 question
- newsultans1 question
- flurter291 question
- SakuSugoii1 question
- misshiss131 question
- CescoP1 question
- Pls-Downvote-My-Post1 question
- movie651 question
- Mr_Floppyfish1 question
- RepublicanRealist1 question
- KritDE1 question
- Avdaq_ksp1 question
- buildinganewcomputer1 question
- C19lf1 question
- AllyHas1 question
- norights_throwaway1 question
- mfalconieri1 question
- alyssaparmenter1 question
- pamelaAreeves1 question
- zambonier1 question
- Cawson1 question
- ilvovebr1 question
- Lirne1 question
- Gremoryy1 question
- Addixtxy1 question
- LucasAI1 question
- XboxMUT1 question
- styop1 question
- VincentHoliday1 question
- Musical_Alix1 question
- Karmajuice1 question
- thr0wupthr0waway1 question
- mallycakes1 question
- LucyintheSky661 question
- shaaleen1 question
- thezengrenadier1 question
- CrazyAm11boLady1 question
- SpaceThymeCooktinuum1 question
- _McKilla_1 question
- sese317j1 question
- Runs_With_Spiders1 question
- name__redacted1 question
- Pirate-AdmiralWalrus1 question
- bornandraisedin1 question
- lizzycupcake1 question
- askers1 question
- mushroommunkey1 question
- standsinwind1 question
- Viberz1 question
- oregoncamper1 question
- rjpaiz1 question
- CraigOKC1 question
- NumberOneSportsFan1 question
- Rumblingtumblings1 question
- TheBatman311 question
- stinkfinger21 question
- harley613w1 question
- Turas1 question
- Deafgrips651 question
- creitve1 question
- T-rabbit1 question
- Vercingetorisk1 question
- Discomfitting_SOB1 question
- RingBoss1 question
- bookingscripts1 question
- iTzExalted1 question
- msdfmnbsd1 question
- idkwhattodoy1 question
- mcalla091 question
- Ramza11 question
- Lukeofthehighorder1 question
- SmaGrodornaArLustiga1 question
- ozenga1 question
- RoyMustangg1 question
- Buster_Bronco1 question
- HamburgerConnoisseur1 question
- Stars_falling1 question
- PM_ME_PETITE_TITTIES1 question
- Makaiei1 question
- goteamvr1 question
- sleptlikeaglove1 question
- csundergraduate1 question
- bromleytobrooklyn1 question
- 0_1_2_3_4_5_6_7_8_9_1 question
- chadmanx021 question
- taigatiger1 question
- gregbrial1 question
- genthedolazegar1 question
- summon_auntie1 question
- 3DVore1 question
- BelmontBrosDylan1 question
- Confessor_bear1 question
- jSqaur31 question
- Heirimias221 question
- DasKudos1 question
- TheRealRyu1 question
- Ranger_Aragorn1 question
- binupdd1 question
- ahmed44f1 question
- guy_awsomest1 question
- vicsloan1 question
- iP0st3d1 question
- nancywenzel1 question
- redandblacklumberjac1 question
- Btonn31 question
- Keegzmcninja1 question
- amabtrans1 question
- PM_me_ur_xbox-trials1 question
- pay_gorn1 question
- TrillFlossy1 question
- embracehumanity1 question
- young-entrepreneur_1 question
- paxtonLNK1 question
- SparklingWalrus1 question
- alfabet_soup1 question
- DanielPedberg1 question
- toversations1 question
- Mindwaves231 question
- 3funny6me1 question
- lydia_loves_aidan1 question
- lediploplo1 question
- deceitfulink1 question
- thisizlandon1 question
- DoesSheGiveZed1 question
- Mangocrud1 question
- hateisgoodfortheskin1 question
- Cojonazos1 question
- SpeedoHunter1 question
- TheRealZekiepoo1 question
- braydster341 question
- NaquadriaX1 question
- Dryzoh1 question
- shazzammmmm1 question
- Donkeygun1 question
- JIM_EDEY1 question
- hdzstream51 question
- josfari1 question
- LtSockington1 question
- RenoCSGO1 question
- CraftyCreeper1 question
- heyaqualung1 question
- Belovelant1 question
- BlabberingEndlessly1 question
- DumberMonkey1 question
- sergiodxd1 question
- pego_tinn1 question
- whodaheckisdouljaboy1 question
- nixiecon1 question
- IHaveANich1 question
- SakuraBlackRose1 question
- italien1 question
- Hotdog711 question
- kasimacinni1 question
- RexOrigin1 question
- endlessinavictory1 question
- Hanashinobi21 question
- knattymama1 question
- LethalWatermelon1 question
- puddingandchomps1 question
- ggwilde1 question
- Ferrazzo1 question
- nolabiguy1 question
- kouaki1 question
- Snotspat1 question
- casehogan1 question
- FierstArter1 question
- BrandonDaKid311 question
- monavegas1 question
- AmishHomage1 question
- anoneth1 question
- beamerblue1 question
- AnScriba1 question
- mavpa821 question
- jackalope_rising1 question
- umustbekiddingme1 question
- realstewpig1 question
- sfd4f65d4gdf51 question
- lilstrawbs1 question
- KeelyFarmertin11 question
- XxRhythmicxX1 question
- RedFiolent1 question
- majorlariviere11 question
- Ben10do1 question
- whydetroitwhy1 question
- a_likely_story1 question
- Phxdoc1 question
- _orz1 question
- bookahontas1 question
- VCTRLXNDR1 question
- NozzyT1 question
- Chimpnado1 question
- Stockus_Member1 question
- wrathofbanja1 question
- extraordinaryperson1 question
- PyroFromTheMoon1 question
- halfofzeno1 question
- tedmackey1 question
- BadHandwriting1 question
- therealmrdean1 question
- Boxing_Glove_Arrow1 question
- BenLynch871 question
- iamdangeruss1 question
- vherm1 question
- jgonieal1 question
- BreatheTheVoodoo1 question
- Shotunsteve1 question
- scarlettdsc1 question
- marzipanfred1 question
- A-ZipperSuitedSunGod1 question
- hoseo251 question
- aoz0ra1 question
- Groff_Duda1 question
- qpqpqpqpqpqpqpqp1 question
- zkushking1 question
- beasleyben1 question
- SleepyDinosaur1 question
- Pointer_moron1 question
- nashvegasent1 question
- liquidf811 question
- PhotoShopPumper1 question
- DINAMIT_max1 question
- TrumpIsMyJesusChrist1 question
- mori561 question
- Conflict101 question
- 2INDMECH21 question
- Danger_Knight1 question
- Apron-Khan1 question
- Lowzix1 question
- MegaMuffinz1 question
- pryory1 question
- firstphotoshoot1 question
- SphincterSuprise1 question
- TulsaMJ1 question
- BirminghamCoder91 question
- rav_a1 question
- jakobasusual1 question
- jurydutyguy1 question
- pegpeggy1 question
- Willow_Al1 question
- _Wallypop1 question
- HasEars1 question
- kellie181 question
- draynas1 question
- karmadoesntmatter691 question
- clusterbn1 question
- UltimateGoodGuy1 question
- thatwasawesome1 question
- Athronoak1 question
- Slybrand1 question
- AllBunsGlazin1 question
- sissysamurai1 question
- Shoulditeachphysed1 question
- glashow1 question
- Letagod1 question
- necroplex1 question
- ltsootcfas1 question
- Itachifk1 question
- Josh_kid1 question
- BrooskHamarash1 question
- AreWe_WeAre1 question
- GutenTagGoethe1 question
- speed_limit_351 question
- modernbanget1 question
- Casualamathrowaway31 question
- Phil_Osa1 question
- Ocean4K1 question
- FireyShitBucket1 question
- bigHodey1 question
- iusuallyjustread1 question
- nicotwuist111 question
- H0onk1 question
- towniemakingbrownies1 question
- swatiside1 question
- catholic131 question
- WittyLoser1 question
- thegirlwith2kitties1 question
- Dr_Zurkon1 question
- cyrodii1 question
- BrooklynWeeb1 question
- timcamber1 question
- scribbled_dreams1 question
- howdoiusetehreddit1 question
- istillhavenoclue1 question
- HyarionCelenar1 question
- k_five1 question
- guesswhostalkin1 question
- bllaaahhhh1 question
- Fordoxs1 question
- portrayaledreality1 question
- DeadGrimmy1 question
- jedaisaboteur1 question
- Chuckweb1 question
- bennyboiq1 question
- Cidfox1 question
- flavchallenged1 question
- portkindsutitamers1 question
- 1 private contributor1 question
Question catalog for this preview
Catalog listing of the 5 preview questions for this quiz.
Question 1
A user wants to replace an aging iPhone with a new device while minimizing migration time and data loss.
Which preparation step is MOST effective?
Explanation
Cloud backups allow apps, settings, and user data to be restored quickly to replacement devices.
Question 2
A VM has a snapshot chain six levels deep; performance degraded.
What is the BEST remediation?
Explanation
Deep snapshot chains hurt performance; consolidate when safe. More snapshots worsen it. Disabling NICs and illegal underclock are wrong.
Question 3
A laptop user wants biometric login support without requiring external authentication hardware.
Which built-in feature BEST satisfies this requirement?
Explanation
Integrated fingerprint readers provide convenient biometric authentication for secure sign-in.
Question 4
Internal users resolve external names but external users cannot reach the published web server.
Which record is missing publicly?
Explanation
External access needs public DNS and routing/NAT. Private MX, workstation PTR, and APIPA do not publish internet services.
Question 5
You are a technician on the help desk for Meridian Financial Group. A ticket has been escalated to you by the user 'rkovacs' on workstation FIN-WS-019. The user recently approved a memory upgrade — two new 16GB DDR4-3600 sticks to replace the original 2×8GB DDR4-3200 kit. The upgrade was performed by a junior technician over the weekend. Since Monday morning, rkovacs reports that performance during Excel model rendering and PDF batch exports is noticeably worse than before the upgrade — the machine feels 'slower than it did with the old RAM.' Additionally, the machine has crashed twice this week with no warning, forcing a cold reboot. The junior technician's notes state: 'Installed 2×16GB G.SKILL Trident Z 3600MHz sticks. XMP enabled in BIOS. System POSTs and boots normally.' Your job is to investigate the workstation remotely via this console, determine the root cause(s) of the degraded performance and system instability, and identify the correct remediation steps. The filesystem contains diagnostic exports, application logs, BIOS configuration notes, and system reports left by the junior technician. Not everything you find will be relevant — use your judgment.
Explanation
FIN-WS-019 is suffering from two distinct but related post-upgrade configuration errors. First, the junior technician installed both DDR4-3600 modules in Slot 1 and Slot 3 — both of which are on Channel A of the ASUS PRIME B550M-A. This means the memory controller never established dual-channel operation. The CPU-Z report confirms 'DC Mode: Single-Channel' and both SPD entries show DIMM_A1 and DIMM_A2. Channel B (Slots 2 and 4) is empty. On this workstation, which uses an integrated GPU sharing system memory, single-channel mode cuts available memory bandwidth from approximately 51.2 GB/s (dual-channel DDR4-3200) to approximately 28.4 GB/s — a 44% reduction. This alone explains the measurable performance regression on Excel pivot refreshes and PDF exports. Second, the technician enabled XMP Profile 1 in BIOS, running the modules at DDR4-3600 (1799.6 MHz). The PRIME B550M-A's maximum supported JEDEC bus speed is DDR4-3200. The G.SKILL kit's XMP 2.0 profile is certified for Intel platforms and not guaranteed on AMD. The AMD Ryzen 7 5700G's integrated memory controller cannot reliably sustain the 1.35V voltage regulation required for DDR4-3600 XMP on this board without manual voltage tuning. The memory_stability.log documents the result: sustained voltage spikes above the 1.35V target, tRAS timing alignment faults on the XMP profile, and ultimately a STOP 0x0000001A MEMORY_MANAGEMENT kernel crash. The fix requires both issues to be corrected: move one module to Slot 2 (Channel B) to establish dual-channel, and disable XMP Profile 1 in BIOS, setting memory to DDR4-3200 (or enabling XMP Profile 2 if it targets 3200 MHz). The technician should then verify dual-channel mode and correct DRAM frequency in CPU-Z before returning the machine.