What are two common causes of a physical layer network connectivity problem?
Cable or Connector Issue, Power or Hardware Failure
Two common causes of a physical layer network connectivity problem are:
1. Cable or Connector Issue: Physical layer connectivity issues can occur if the network cables or connectors are damaged, defective, or improperly connected. This can result in a weak or intermittent connection, causing network disruptions or complete loss of connectivity. Issues like loose cables, broken connectors, or damaged wires can lead to poor signal quality or loss of signal altogether.
2. Power or Hardware Failure: Another common cause of physical layer connectivity problems is power or hardware failure. Network devices such as switches, routers, or network interface cards (NICs) require proper power supply to function. If there is a power outage or a faulty power source, it can result in the network devices not functioning properly, leading to connectivity issues. Similarly, hardware failures or malfunctions in network devices, such as faulty NICs or defective switch ports, can disrupt the physical layer connectivity.
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