Show Menu

bytebar

About bytebar

  • ByteBar — no-fluff IT certification study guides.
  • Cheatographer since 14 September, 2026.

Stats

  • 10 Cheat Sheets
  • 23 Cheat Sheet Pages
  • 4,009 Cheat Sheet Views
  • Sort: Magic
  • Filter:
  • Rating:
9 Pages
  (0)
The commands, tables, and exam traps from the CCNA 200-301 blueprint — subnetting, VLANs, STP, OSPF, ACLs, NAT, wireless, and automation on one page.
24 Sep 26, updated 1 Oct 26
2 Pages
  (0)
Core AWS services for the CLF-C02 exam: compute, storage, databases, networking, security, and pricing — in one glanceable reference.
24 Sep 26, updated 25 Sep 26
1 Page
  (0)
14 Sep 26, updated 21 Sep 26
2 Pages
  (0)
High-yield NCLEX-RN lab values with normal ranges, critical values, and what to do — one-page rapid review.
20 Sep 26, updated 21 Sep 26
2 Pages
  (0)
Key PowerShell cmdlets for Windows administration: files, processes, services, networking, and Active Directory basics — with practical examples. Built for Windows admins and certification study. More free study resources at bytebarhq.com.
14 Sep 26, updated 20 Sep 26
2 Pages
  (0)
The essential Linux commands for files, permissions, networking, processes, and package management — with syntax and the flags you'll actually use. Handy for CompTIA Linux+ prep, sysadmin work, and daily terminal life. More free study resources at bytebarhq.com.
14 Sep 26, updated 20 Sep 26
1 Page
  (0)
The 7-layer OSI model in one clear, exam-ready reference: each layer's name, function, key protocols, and devices — plus how data flows down the stack from application to physical. A must-have for Network+ and CCNA candidates. More free study resources at bytebarhq.com.
14 Sep 26, updated 20 Sep 26
2 Pages
  (0)
The essential network ports every IT pro needs at their fingertips: HTTP/HTTPS, DNS, DHCP, SSH, FTP, SMTP, RDP, and more — with port numbers, TCP vs UDP, and what each service actually does. Built for CompTIA A+, Network+, and Security+ exam prep. More free study resources at bytebarhq.com.
14 Sep 26, updated 20 Sep 26
1 Page
  (0)
Every major Wi-Fi standard from 802.11a to Wi-Fi 7 (802.11be): frequencies, max speeds, channel widths, and key features in one glanceable reference. Perfect for Network+ wireless topics and real-world network planning. More free study resources at bytebarhq.com.
14 Sep 26, updated 20 Sep 26
1 Page
  (0)
TCP vs UDP, side by side: reliability, speed, headers, the three-way handshake, and real-world use cases — when to use each and why the exam loves asking. Answer the classic comparison questions with confidence. More free study resources at bytebarhq.com.
14 Sep 26, updated 20 Sep 26