There are two basic types of Ethernet cable connections: straight-through and cross-over. Straight-through A straight-through cable is wired the same on both ends. It’s mainly used when you’re connecting different devices, like a computer to a switch, or a router to a switch. Cross-over A cross-over cable is wired differently on each end so the send and receive lines are swapped. It’s mainly used when connecting similar devices directly, like a computer to another computer, or a switch to another switch. Why it matters Knowing the difference helps you avoid connection issues and understand how devices talk to each other on a network. Even though modern devices can often figure it out automatically, it’s still a core networking concept you’re expected to know.

Teaching TCP/IP this way would save thousands of students.

Free CompTIA Security SY0-701 Exam Study Material certtap.gumroad.com/l/ajkck

RT @SymoneBeez: Grab your free Microsoft Azure certification this week aiskillsnavigator.microsoft.… 1. Complete a free learning playlist 2-3.5…

Free CompTIA CySA CS0-003 Study Guide w/ Practice Exam certtap.gumroad.com/l/etftlu

The AWS Certified Solutions Architect Professional cert can help you prove your expertise in the Cloud. And in this course, @andrewbrown helps you prep for the exam. You'll learn about storage services, networking, databases, security, management tools, and lots more. freecodecamp.org/news/aws-so…

Meet Microsoft Scout. An always-on agent that keeps work moving, taking action without needing to be prompted each time. As Microsoft’s first Autopilot agent, Microsoft Scout works across Teams, Outlook, OneDrive, and more—taking action within the controls your organization sets. Learn more: msft.it/6011vbhaN

Free CompTIA Security SY0-701 Exam Study Material certtap.gumroad.com/l/ajkck

The Linux operating system powers the majority of the world's servers. So it's a great tool to know. And this course will teach you Linux basics. You'll learn how to manage & troubleshoot a wide range of systems & you'll practice the concepts with labs. freecodecamp.org/news/free-l…

Cisco has announced CCNA v2.0! The switchover from v1.1 to v2.0 happens on February 3, 2027, so you still have 8 months to take v1.1 - plenty of time! You could start from 0 today and pass v1.1 in time, so DON'T PANIC! Give me some time to analyze the updated topics and think about it, and then I'll make some videos about v2.0 and my plans for it. I think it's a very good update, cutting out some of the more "painful" topics for CCNA students. The new topics focus heavily on configuration and troubleshooting.

Free CompTIA Security SY0-701 Exam Study Material certtap.gumroad.com/l/ajkck

It cost $0.00 to retweet to help keep my only parent I have left alive who’s fighting cancer in a broken greedy system. In a system that puts profit over life. I’m asking this Mother’s Day please do not ignore this post.

Top of the morning! I’m glad to see such renewed interest in network engineering 😆 here’s an article with a bunch of free resources for the CCNA. deirradecoded.com/home/is-th…

The best of the best. MenaRD slays The Beast and wins the main event of Evo Legends Live!

Learn networking with REAL labs ——> Join the Summer of CCNA (hurry up!!): ntck-ac.co/ck #SummerofCCNA #fightAI #AIresistance #ResistAI

Yes...what he said. We're in this together and will literally meet with you every day to make sure you succeed. Click for info -> ntck-ac.co/jc

I think it’s finally time to get your CCNA. And I want to help. Starting in May, we are opening up our CCNA course to those who are serious…..for FREE. It will be a focused CCNA journey from May to August. Me and @CioaraJeremy will be helping you along the way with livestreams and community. No more excuses. It’s time to get serious. Join here: ntck-ac.co/ccnasummerearlybi… This is going to be the summer that you get your CCNA. #SummerOfCCNA

Know someone trying to break into cybersecurity? Tag them. 👇 We’ve released 8 free @Splunk courses that form the Cybersecurity Defense Analyst Career Path, built for aspiring SOC Analysts. Start learning today: cs.co/6011BBBoIc

¡Nueva certificación de Python de FreeCodeCamp! Totalmente gratuita: ✓ 5 proyectos prácticos ✓ Traducciones al Español ✓ Con examen final → freecodecamp.org/espanol/lea…

Stop studying CCNA alone. Seriously. 🔥 Summer of CCNA is LIVE: Daily help Real labs Community 👉 ntck-ac.co/ccnasummerearlybi… This is how you actually pass. #NetworkChuckAcademy #CCNA #LiveTraining