Power over Ethernet Concepts

The video tutorial covers various aspects of networking cables, including their types, specifications, and uses. It explains the differences between bandwidth and throughput, the types of Ethernet cables, and their maximum distances. The tutorial also discusses the importance of using plenum-rated cables in certain environments for safety reasons. Additionally, it covers the use of console and crossover cables for network management and configuration. Finally, the video explains Power over Ethernet (PoE) and its standards, highlighting how it provides power and connectivity through a single cable.

What is the theoretical maximum data rate of a connection commonly referred to as?

• Throughput

• Jitter

• Bandwidth

• Latency

Which type of cable is described as having no shielding around the twisted pairs?

• Shielded Twisted Pair (STP)

• Coaxial Cable

• Fiber Optic Cable

• Unshielded Twisted Pair (UTP)

What is the primary concern when using network cables in a plenum area?

• Signal interference

• Cable length

• Data transfer speed

• Fire safety and toxic fumes

Which material is commonly used for the jacket of a plenum-rated cable?

• Polyethylene

• Nylon

• Polyvinyl Chloride (PVC)

• Fluorinated Ethylene Polymer (FEP)

Which type of connector is commonly used for console cables in networking?

• USB-C

• DB-9

• RJ-11

• RJ-45

What is the purpose of a crossover cable in networking?

• To connect a computer to a switch

• To connect two similar devices directly

• To extend the length of a network cable

• To provide power to a device

What does PoE stand for in networking?

• Power over Ethernet

• Protocol over Ethernet

• Packet over Ethernet

• Performance over Ethernet

Which PoE standard provides up to 71.3 watts of power?

• PoE-

• PoE++

• PoE+

• PoE

What is the main advantage of using PoE in networking?

• Reduced cable clutter by combining power and data

• Increased data speed

• Improved signal quality

• Extended cable length

What is the difference between Mode A and Mode B in PoE?

• Mode A uses the same pairs for data and power, Mode B uses spare pairs

• Mode A is for indoor use, Mode B is for outdoor use

• Mode A is for gigabit Ethernet, Mode B is for 100 megabit Ethernet

• Mode A uses all four pairs for power, Mode B uses two pairs