What is the required threshold or standard for: FTP (File Transfer Protocol) — TCP in CompTIA A+ Core 1 (220-1201)?

Port 20 / 21 (Handbook source: Domain 2.1 — Networking Ports)

What is the required threshold or standard for: SSH (Secure Shell) & SFTP — TCP in CompTIA A+ Core 1 (220-1201)?

Port 22 (Handbook source: Domain 2.1 — Networking Ports)

What is the required threshold or standard for: Telnet (unencrypted terminal emulation) — TCP in CompTIA A+ Core 1 (220-1201)?

Port 23 (Handbook source: Domain 2.1 — Networking Ports)

What is the required threshold or standard for: 11 Mbps max speed · 2.4 GHz frequency only in CompTIA A+ Core 1 (220-1201)?

802.11b (Handbook source: Domain 2.2 — Wireless Standards)

What is the required threshold or standard for: 54 Mbps max speed · 5 GHz frequency only in CompTIA A+ Core 1 (220-1201)?

802.11a (Handbook source: Domain 2.2 — Wireless Standards)

What is the required threshold or standard for: 54 Mbps max speed · 2.4 GHz frequency only in CompTIA A+ Core 1 (220-1201)?

802.11g (Handbook source: Domain 2.2 — Wireless Standards)

What is the required threshold or standard for: Maximum distance for Cat 5e, Cat 6, and Cat 6a unshielded twisted pair in CompTIA A+ Core 1 (220-1201)?

100 meters (328 ft) (Handbook source: Domain 3.1 — Cables and Connectors)

What is the required threshold or standard for: 1 Gbps (1,000 Mbps) bandwidth up to 100 meters (100 MHz) in CompTIA A+ Core 1 (220-1201)?

Cat 5e (Handbook source: Domain 3.1 — Cables and Connectors)

What is the required threshold or standard for: 10 Gbps up to 55 meters; 1 Gbps up to 100 meters (250 MHz) in CompTIA A+ Core 1 (220-1201)?

Cat 6 (Handbook source: Domain 3.1 — Cables and Connectors)

What is the required threshold or standard for: Identify the problem (gather info, question user, duplicate issue, check logs) in CompTIA A+ Core 1 (220-1201)?

Step 1 (Handbook source: Domain 5.1 — Troubleshooting Methodology)

What is the required threshold or standard for: Establish a theory of probable cause (question the obvious, consider top causes) in CompTIA A+ Core 1 (220-1201)?

Step 2 (Handbook source: Domain 5.1 — Troubleshooting Methodology)

What is the required threshold or standard for: Test the theory to determine cause (if confirmed proceed; if not, re-establish theory or escalate) in CompTIA A+ Core 1 (220-1201)?

Step 3 (Handbook source: Domain 5.1 — Troubleshooting Methodology)

What are the speed limits on the CompTIA A+ Core 1 (220-1201) permit test?

Key statutory speed limits for CompTIA A+ Core 1 (220-1201) are documented in the official CompTIA A+ 220-1201 Certification Exam Objectives.

What is the legal BAC limit in CompTIA A+ Core 1 (220-1201)?

In CompTIA A+ Core 1 (220-1201), the legal BAC limit is 0.08% for adults 21 and older, and strict zero-tolerance penalties apply to minors.

What are the fines and penalties for common violations in CompTIA A+ Core 1 (220-1201)?

Fines for passing stopped school buses, DUIs, and reckless driving carry strict statutory penalties and license suspensions in CompTIA A+ Core 1 (220-1201).

Can I download or print the CompTIA A+ Core 1 (220-1201) cheat sheet as a PDF?

Yes. Use the Print / Save as PDF button on this page to generate a clean, one-page printable reference sheet of every speed limit, distance, parking regulation, and penalty on the CompTIA A+ Core 1 (220-1201) examination.

CompTIA A+ Core 1/Cheat sheet

CompTIA A+ Core 1 cheat sheet: key rules and summary

Up to 90 multiple-choice and PBQ questions; passing score 675/900; 90-minute limit.

31 numbers
4 sections
4 rules people get wrong

Test yourself: 20 free questions Questions with answers

Every line checked against the CompTIA A+ 220-1201 Certification Exam Objectives on September 24, 2026. Print it, or keep it open while you practice.

Memorise these first

Port 20 / 21FTP (File Transfer Protocol) — TCP
802.11b11 Mbps max speed · 2.4 GHz frequency only
100 meters (328 ft)Maximum distance for Cat 5e, Cat 6, and Cat 6a unshielded twisted pair

Standard network ports

Port 20 / 21: FTP (File Transfer Protocol) — TCPDomain 2.1 — Networking Ports
Port 22: SSH (Secure Shell) & SFTP — TCPDomain 2.1 — Networking Ports
Port 23: Telnet (unencrypted terminal emulation) — TCPDomain 2.1 — Networking Ports
Port 25: SMTP (Simple Mail Transfer Protocol) — TCPDomain 2.1 — Networking Ports
Port 53: DNS (Domain Name System) — UDP/TCPDomain 2.1 — Networking Ports
Port 67 / 68: DHCP (Dynamic Host Configuration Protocol) — UDPDomain 2.1 — Networking Ports
Port 80: HTTP (Hypertext Transfer Protocol) — TCPDomain 2.1 — Networking Ports
Port 110: POP3 (Post Office Protocol v3, unencrypted) — TCPDomain 2.1 — Networking Ports
Port 143: IMAP (Internet Message Access Protocol, unencrypted) — TCPDomain 2.1 — Networking Ports
Port 443: HTTPS (Hypertext Transfer Protocol Secure) — TCPDomain 2.1 — Networking Ports
Port 445: SMB (Server Message Block) — TCPDomain 2.1 — Networking Ports
Port 3389: RDP (Remote Desktop Protocol) — TCP/UDPDomain 2.1 — Networking Ports

Wi-Fi standards and frequencies

802.11b: 11 Mbps max speed · 2.4 GHz frequency onlyDomain 2.2 — Wireless Standards
802.11a: 54 Mbps max speed · 5 GHz frequency onlyDomain 2.2 — Wireless Standards
802.11g: 54 Mbps max speed · 2.4 GHz frequency onlyDomain 2.2 — Wireless Standards
802.11n (Wi-Fi 4): Up to 600 Mbps (MIMO) · 2.4 GHz and 5 GHz dual-bandDomain 2.2 — Wireless Standards
802.11ac (Wi-Fi 5): Up to 6.9 Gbps (MU-MIMO) · 5 GHz frequency onlyDomain 2.2 — Wireless Standards
802.11ax (Wi-Fi 6/6E): Up to 9.6 Gbps (OFDMA) · 2.4 GHz, 5 GHz, and 6 GHz (6E)Domain 2.2 — Wireless Standards

Ethernet & peripheral cable specs

100 meters (328 ft): Maximum distance for Cat 5e, Cat 6, and Cat 6a unshielded twisted pairDomain 3.1 — Cables and Connectors
Cat 5e: 1 Gbps (1,000 Mbps) bandwidth up to 100 meters (100 MHz)Domain 3.1 — Cables and Connectors
Cat 6: 10 Gbps up to 55 meters; 1 Gbps up to 100 meters (250 MHz)Domain 3.1 — Cables and Connectors
Cat 6a: 10 Gbps up to 100 meters (500 MHz)Domain 3.1 — Cables and Connectors
USB 3.0 / 3.1 Gen 1: 5 Gbps maximum data transfer rate (SuperSpeed)Domain 3.1 — Cables and Connectors
USB 3.1 Gen 2: 10 Gbps maximum data transfer rate (SuperSpeed+)Domain 3.1 — Cables and Connectors
Thunderbolt 3 / 4: 40 Gbps maximum throughput via USB Type-C connectorDomain 3.1 — Cables and Connectors

CompTIA 6-step troubleshooting theory

Step 1: Identify the problem (gather info, question user, duplicate issue, check logs)Domain 5.1 — Troubleshooting Methodology
Step 2: Establish a theory of probable cause (question the obvious, consider top causes)Domain 5.1 — Troubleshooting Methodology
Step 3: Test the theory to determine cause (if confirmed proceed; if not, re-establish theory or escalate)Domain 5.1 — Troubleshooting Methodology
Step 4: Establish a plan of action and implement the solutionDomain 5.1 — Troubleshooting Methodology
Step 5: Verify full system functionality and implement preventive measuresDomain 5.1 — Troubleshooting Methodology
Step 6: Document findings, actions, and outcomes (knowledge base / ticketing)Domain 5.1 — Troubleshooting Methodology

Second read

Rules people get wrong

Troubleshooting order: Always verify full system functionality (Step 5) BEFORE you document your findings (Step 6). Testing questions frequently swap steps 5 and 6.
Laser printer imaging process order: Processing -> Charging -> Exposing -> Developing -> Transferring -> Fusing -> Cleaning (remember: 'Please Come Early During The Fall Carnival').
RAID storage minimums and fault tolerance: RAID 0 (2 disks, 0 parity, no fault tolerance); RAID 1 (2 disks, mirroring, 1 failure allowed); RAID 5 (3 disks min, striped with parity, 1 failure allowed); RAID 10 (4 disks min, mirrored sets striped, up to 2 disk failures allowed).
Private IPv4 address ranges (RFC 1918): Class A (10.0.0.0 – 10.255.255.255), Class B (172.16.0.0 – 172.31.255.255), Class C (192.168.0.0 – 192.168.255.255). APIPA auto-configuration is always 169.254.0.1 – 169.254.255.254.

Take it with you

Save it as one poster

CompTIA A+ Core 1 (220-1201) permit test cheat sheet: speed limits, distances, parking rules and the other numbers on the test, from the official handbook — The CompTIA A+ Core 1 (220-1201) cheat sheet as one printable poster, every number from the official handbook. Download the full-size image

QuizCram (quizcram.com) · Verified against the official CompTIA A+ 220-1201 Certification Exam Objectives · Study online at quizcram.com/comptia-a-plus-practice-test

Knowing the numbers is half of it. Can you apply them?

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