🔍 Key Concepts

• Differences between 10Base-T and 100Base-TX Ethernet standards • Typical cabling used in Ethernet over twisted pair for LANs • How many twisted pairs are inside a standard CAT‑5 cable, even if not all are used

💭 Think About

• Think about what kind of cable you normally see with common RJ‑45 Ethernet plugs on ships and in offices—what category and internal construction does it have? • Do 10Base‑T and 100Base‑TX actually use all of the pairs inside the cable for data, or do they only use some of them? • Which option describes the physical cable type itself, not just how many pairs are actively used by the Ethernet standard?

✅ Before You Answer

• Identify which options are talking about cable category and pair count together versus different media types like coax or fiber • Recall that standard CAT‑5 patch cables are manufactured with a specific number of twisted pairs inside, regardless of how many the Ethernet standard uses • Eliminate any answers that are not unshielded twisted pair (UTP) copper cable commonly used for typical RJ‑45 Ethernet connections