A network is configured on a Bus topology.
Which of the following conditions could cause a network failure? Each correct answer represents a complete solution.
Choose all that apply.
Click on the arrows to vote for the correct answer
A. B. C. D.DBA.
In a Bus topology, all devices are connected to a single cable, called the bus, which serves as a shared communication medium. Each device on the network listens to the bus for signals and transmits data only when the bus is free. If multiple devices attempt to transmit at the same time, a collision can occur, and the data may become corrupted and unreadable.
Now, let's examine each answer choice:
A. A break in a network cable: If a cable is physically damaged, such as being cut or chewed by an animal, it can cause a complete network failure. Since all devices on a bus network are connected to the same cable, a break in the cable can disrupt the entire network.
B. 75 ohm terminators at open ends: Terminators are used to absorb signals that reach the end of a cable, preventing them from reflecting back and causing interference on the network. In a Bus topology, it is important to terminate the ends of the bus with the correct impedance. Using the wrong impedance terminator or leaving a cable open-ended can cause network issues, including signal reflection and interference.
C. A powered off workstation: If a workstation is powered off, it will not be able to communicate on the network. This can cause a disruption in the flow of information across the network, particularly if the workstation is serving as a critical node, such as a server or gateway.
D. An open-ended cable without terminators: As mentioned earlier, leaving a cable open-ended can cause signal reflection and interference, disrupting communication on the network.
Therefore, the correct answers are A, B, and D.