SK0-005 · Question #100
SK0-005 Question #100: Real Exam Question with Answer & Explanation
The correct answer is B: Cat 5 crossover. To connect two switches without auto-MDIX capability, a crossover cable is required to properly connect their transmit (TX) and receive (RX) pins.
Question
A datacenter technician needs to wire several switches together to increase port capacity. These switches do not have auto-MDI capability. Which of the following types of cable is the technician MOST likely to use to connect the switches together?
Options
- ACat 6 straight-through
- BCat 5 crossover
- CCat 5e straight-through
- DCat 6 rollover
Explanation
To connect two switches without auto-MDIX capability, a crossover cable is required to properly connect their transmit (TX) and receive (RX) pins.
Common mistakes.
- A. A straight-through cable is used to connect unlike devices (e.g., a switch to a host) or devices with auto-MDIX, and would not work for direct switch-to-switch connection without auto-MDIX.
- C. Similar to A, a straight-through cable (regardless of Cat 5e specification) is incorrect for connecting two switches without auto-MDIX.
- D. A rollover cable is used for console connections to network devices, not for connecting network devices for data transfer.
Concept tested. Ethernet cable types for connecting like devices
Reference. https://www.cisco.com/c/en/us/support/docs/lan-switching/ethernet/1000-ethernet-cable-testing.html
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