1.0 Network+ Certification Cram Notes : Networking Fundamentals

1.3 Types of cables and connectors

Explain Ethernet standards, Copper wired

Ethernet is a widely used local area network (LAN) technology. The following are different Ethernet standards for copper wired networks:

1. 10BASE-T: This is an Ethernet standard that operates at 10 Mbps over a distance of 100 meters using twisted pair cables. It uses baseband signaling, which means that only one device can transmit data at a time over the cable.

2. 100BASE-TX: This is an Ethernet standard that operates at 100 Mbps over a distance of 100 meters using twisted pair cables. It uses baseband signaling, which means that only one device can transmit data at a time over the cable.

3. 1000BASE-T: This is an Ethernet standard that operates at 1 Gbps over a distance of 100 meters using twisted pair cables. It uses four pairs of wires, which allows for full-duplex communication, meaning that data can be transmitted in both directions simultaneously.

4. 10GBASE-T: This is an Ethernet standard that operates at 10 Gbps over a distance of 100 meters using twisted pair cables. It uses four pairs of wires, which allows for full-duplex communication, meaning that data can be transmitted in both directions simultaneously.

5. 40GBASE-T: This is an Ethernet standard that operates at 40 Gbps over a distance of 30 meters using twisted pair cables. It uses four pairs of wires, which allows for full-duplex communication, meaning that data can be transmitted in both directions simultaneously.

Explain Ethernet standards, Fiber based:

Ethernet standards, Fiber based refer to the specifications that define how Ethernet technology can be implemented over fiber optic cabling. Here is an explanation of some common Ethernet standards, Fiber based:

100BASE-FX: This standard is defined in the IEEE 802.3u specification and provides a data transfer rate of 100 Mbps over two optical fibers.

100BASE-SX: This standard is also defined in the IEEE 802.3u specification and provides a data transfer rate of 100 Mbps over multimode optical fibers.

1000BASE-SX: This standard is defined in the IEEE 802.3z specification and provides a data transfer rate of 1 Gbps over multimode optical fibers.

1000BASE-LX: This standard is also defined in the IEEE 802.3z specification and provides a data transfer rate of 1 Gbps over single-mode optical fibers.

10GBASE-SR: This standard is defined in the IEEE 802.3ae specification and provides a data transfer rate of 10 Gbps over multimode optical fibers.

10GBASE-LR: This standard is also defined in the IEEE 802.3ae specification and provides a data transfer rate of 10 Gbps over single-mode optical fibers.

Coarse wavelength division multiplexing (CWDM): This is a type of wavelength division multiplexing (WDM) technology that uses multiple wavelengths of light to transmit data over fiber optic cabling.

Dense wavelength division multiplexing (DWDM): This is a type of WDM technology that uses a large number of close-spaced wavelengths of light to transmit data over fiber optic cabling.

Bidirectional wavelength division multiplexing (WDM): This is a type of WDM technology that enables both transmitting and receiving of data over a single optical fiber.