ITM 301 Lecture Notes - Lecture 2: Category 5 Cable, Category 6 Cable, Nslookup

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 301
• Professor: Lin Ying Dong

Document Summary

Part a: the physical layer questions: category 5e (enhanced) ethernet cables are newer versions of cat5 and support faster data transmission. Cat5 transmits data at 10-100mbps while cat5e transmits data at up to 1000mbps. The cat5e is better because it"s better at reducing crosstalk/interference: the maximum bandwidth of cat6 is 250mhz while cat6a"s is twice that (up to. The cat6a has the ability to support 10gb ethernet at 100 meters while the. Cat6 can do the same thing but only up to 37 meters. The cat6a also has stronger covering/casing, making it thicker and less flexible. This can be a better option for some company environments (industry). Cat6a also eliminates crosstalk: shielded twisted pair cable (stp) has a metallic shielding that blocks electromagnetic interference. This enables it to carry data faster than an unshielded twisted cable. It can connect 2 devices of the same type (ex. 2 computers or 2 switches to each other).