Q
"Why are crossover cables rarely used nowadays?
A. The switches to which the crossover cables connect are no longer available.
B. Segments are so long today that the crossover cables cannot make a reliable connection.
C. Wireless technology has superseded the need for crossover cables.
D. The required connectors are no longer available."
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Answer
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Step 1:Let's solve this step by step:
Step 2:: Understand the Context
Crossover cables were traditionally used to connect similar network devices (like two computers or two switches) directly without using a standard switch or hub.
Step 3:: Analyze the Modern Networking Landscape
In contemporary networking, most modern network switches and routers have built-in Auto MDI-X (Automatic Medium-Dependent Interface Crossover) technology. This means: - Switches can automatically detect the type of connection needed - Ports can automatically adjust their pin configurations - Standard Ethernet cables can now be used in place of specialized crossover cables
Step 4:: Evaluate the Answer Choices
A. Incorrect - Switches are still widely available B. Incorrect - Cable length is not the primary issue C. Correct - While wireless isn't the only reason, it has significantly reduced the need for direct cable connections D. Incorrect - Connectors are still available
Step 5:: Reasoning
The widespread adoption of: - Auto MDI-X technology - Wireless networking - More sophisticated network infrastructure
Final Answer
Wireless technology has superseded the need for crossover cables. The primary reason crossover cables are rarely used is the combination of built-in switch technologies and the rise of wireless networking, which has reduced the necessity for direct, wired device-to-device connections.
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