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6.3 networking media
| Question | Answer |
|---|---|
| What are the advantages and disadvantages of coaxial cable? | |
| Why are wires twisted together in twisted pair cables? | |
| What is the difference between STP and UTP cabling? | |
| What is the difference between Cat5 and Cat5e cabling? | |
| Which connector type and cable grade is used to connect a cable modem to the internet connection? | |
| What advantages do fiber optic cables offer over twisted pair or other media choices? | |
| What are the disadvantages of implementing fiber optic cables? | |
| What is the difference between single-mode cables and multi-mode cables? | |
| How can you tell the difference between an ST connector and an SC connector? | |
| Coaxial cable Plastic sheath Encases everything and protects the cable. Single mode cable Transfers data using a single light ray. Multi-mode Transfers data using multiple light rays. MT-RJ connector Used with both single and multi-mode cabling | Carries broadband internet signals. |
| Inner conductor l. Cladding Maintains the signal in the center of the core. Protective layer Prevents the cladding and central core from breaking. | Carries data signals in cables. |
| Insulator Central core Carries the signa | Surrounds inner cable conductor and keeps signal separated from the mesh conductor. |
| Braided mesh conductor | Functions as a second physical channel and as a ground. |
| Sheath ctor end. | Encases a cable to protect it from external elements. |
| RG-59 | A coaxial cable specification used for CCTV video systems. |
| RG-6 | A coaxial cable specification used for cable TV, satellite TV, and broadband cable internet. |
| Unshielded twisted pair (UTP) cable RJ-45 connector A connector with 8 connectors, 4 pairs of wires, and a locking tab; us | A cable generally used for Ethernet cables and telephone wires. |
| Shielded twisted pair (STP) cable | A cable that provides more EMI protection, but is more expensive than UTP cable.. |
| Category 5e (cat 5e) cable | A cable that supports gigabit Ethernet. |
| Category 6 (cat 6) cable | A gigabit Ethernet cable with 10 Gbps speeds limited to cable length less than 55 meteres. |
| Category 6a (cat 6a) cable | A gigabit Ethernet cable with 10 Gbps speeds limited to cable length less than 100 meteres. |
| Category 7 (cat 7) cable | Has the strictest specifications for crosstalk and noise of the Cat cables. |
| RJ-11 connector | A connector with 4 connectors, 2 pairs of wires, and a locking tab; used primarily for telephone wiring. |
| Fiber optic cable | Carries broadband internet signals. |
| Patch twisted pair cable | Uses the same wire configuration on each conneed for Ethernet networks. |
| Crossover twisted pair cable | Arrange wires in the first connector using T568A standard and the second connector the T568B standard. |
| RJ-45 Connector | A connector with 8 connectors, 4 pairs of wires, and a locking tab; used for Ethernet networks. |
| Central core | |
| Cladding Maintains the signal in the center of the core. | Carries the signal. |
| Protective layer | Prevents the cladding and central core from breaking. |
| Plastic sheath | vreaking stuff out |
| Multi-mode | Transfers data using multiple light rays. |
| MT-RJ connector | Used with both single and multi-mode |
| ncases everything and protects the cable. | |
| Single mode cable | Transfers data using a single light rays |
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