Study Guide · IT Certification

CompTIA A+ Core 1
No-Filler Study Guide

34 pages. Every major objective covered. 30 exam-style questions with answer explanations. Built for the 220-1101 exam — nothing extra, nothing missing.

34
Pages
6
Domains Covered
30
Practice Q&A
GRID Study Series
CompTIA A+ Core 1
220-1101
The No-Filler Study Guide
2025–2026 34 Pages 30 Practice Q&A

What's Inside

D1

Mobile Devices

Laptop components, ports, wireless types, cellular generations, tethering vs hotspot

15% of exam
D2

Networking

All 15+ ports to memorize, Wi-Fi standards, IPv4/subnetting, switch vs router, PoE

20% of exam
D3

Hardware

Motherboard form factors, RAM types, storage (HDD/SSD/NVMe), RAID 0/1/5/6/10, PSU

25% of exam
D4

Virtualization & Cloud

IaaS/PaaS/SaaS, Type 1 vs Type 2 hypervisors, VDI, containers, cloud models

11% of exam
D5

Hardware & Network Troubleshooting

6-step methodology, POST beep codes, display symptoms, network commands, laser printer process

29% of exam
REF

Quick-Reference Cheat Sheet

All connectors, cable standards (Cat 5/5e/6/6a), fiber, RAM pin counts at a glance

Final review section

Sample Content

Domain 2 · Port Numbers
Memorize these — they appear on every exam:
PortProtocolUse
22SSHSecure remote access
53DNSDomain name resolution
80HTTPUnencrypted web
110POP3Receive email (downloads, deletes from server)
143IMAPReceive email (syncs, stays on server)
443HTTPSEncrypted web
3389RDPRemote Desktop Protocol
Domain 5 · Practice Question
Q: A laser printer is producing pages with smeared toner that does not fully fuse to the paper. Which component is MOST likely failing?

A) Drum    B) Toner cartridge    C) Fuser    D) Transfer roller

Answer: C — Fuser
The fuser assembly uses heat and pressure to permanently bond toner to paper. Smeared or unfused toner that rubs off is almost always a fuser failure. Exam tip: "smearing" = fuser. "Repeating marks" = dirty drum.
What you get
34-page PDF study guide (220-1101 Core 1)
30 practice Q&A with full answer explanations
Port numbers cheat sheet (printable)
RAID quick-reference table
Exam-day strategy checklist
$14
One-time · Instant download · PDF format
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