CompTIA Final Week — A 7-Day Study Plan That Actually Works
The 7-day pre-exam plan for Network+ or Security+. Day-by-day, what to study, what to skip, what to ignore. The difference between cramming and being ready.
Posts tagged: Network-Plus
Free Network+ Practice Test — 20 Questions, Real Exam Style
Free Network+ N10-009 practice test — 20 questions, same style and difficulty as the real exam. Click to reveal each answer with a full explanation. No email …
Network+ Ports Cheat Sheet — All 30 Worth Memorizing on One Page
The Network+ N10-009 exam tests roughly 30 ports — not 100. Port number, protocol, TCP or UDP, what it does. One page, free, exam-ready.
Subnetting Quick Reference — The 60-Second Method on One Page
Subnetting on one page — the 60-second method, the magic-number table, /29 walkthrough, and the prefix-to-mask conversion chart. Print it. Use it. No tables to …
Port Numbers Worth Memorizing for Network+ (and Which Ones You Can Skip)
Network+ port-number memorization is a slog. Here's the ranked list — must-memorize, nice-to-know, and safely-skip — based on what the N10-009 actually tests.
OSI vs TCP/IP Layer Mapping — A Cheat Sheet for the N10-009 Exam
OSI 7-layer model mapped to the TCP/IP 4-layer model with every protocol, PDU name, and exam-trap clarified. The cheat sheet that turns layer questions into …
Subnetting Without a Calculator — The Magic-Number Method
No, you can't use a calculator on the CompTIA Network+ N10-009 exam — you subnet by hand. Here's the magic-number method to subnet any IPv4 mask in under 30 …
ARP Poisoning: Intercepting Traffic on Your Own Network
Technical deep dive into ARP spoofing: how gratuitous ARP poisons caches, Scapy MitM scripts, Ettercap credential capture, DAI on Cisco Catalyst, and arpwatch …
SSL Stripping: Downgrading HTTPS to HTTP Without the User Noticing
How SSL stripping intercepts HTTPS traffic via HTTP rewrites, where HSTS and HSTS preloading defend against it, and what sslstrip still bypasses in 2026.
Network Segmentation Pitch: From VLANs to Microsegmentation to TrustSec
The SE's guide to pitching network segmentation maturity — from flat networks through VLANs, ACLs, microsegmentation, and TrustSec SGTs — with objection …