100-150 Question 98
Single answerYou are troubleshooting a local area network (LAN) and need to identify the type of cable used to connect a computer to a switch. Upon inspection, you notice the cable has 8 wires and an RJ45 connector. Which type of cable is MOST likely being used in this scenario?
- A
Coaxial cable
- B
Ethernet straight-through cable
- C
Ethernet crossover cable
- D
Fiber optic cable
Show answer and explanation
Correct answer: B
Explanation
Ethernet straight-through cables with RJ45 connectors are the most commonly used cables for connecting computers to network switches in a LAN. They are specifically designed for this purpose, making them the correct choice in this scenario. The other cable types mentioned either do not fit the description or are not typically used for this connection type.
- A. Incorrect.
Coaxial cable is not commonly used in modern LANs for connecting devices like computers and switches. It uses a single core conductor and a different type of connector, such as BNC, not RJ45.
- B. Correct.
Ethernet straight-through cables are the standard cables used to connect devices such as computers to switches or routers. They have 8 wires and use an RJ45 connector, making them the most likely cable in this scenario.
- C. Incorrect.
Ethernet crossover cables are used for connecting similar devices, such as one computer to another or one switch to another, without a switch between them. While they also use an RJ45 connector, they are not typically used for computer-to-switch connections.
- D. Incorrect.
Fiber optic cables are used for high-speed connections and longer distances in a network. They do not have copper wires or RJ45 connectors, but rather use optical connectors like LC or SC.