What is the auto-MDIX feature?

Homework Help: Questions and Answers: What is the auto-MDIX feature?

a) It enables a device automatically configure the speed of its interface.
b) It enables a device to automatically configure the duplex settings of a segment.
c) It enables a switch to dynamically select the forwarding method.
d) It enables a device to automatically configure an interface to use a straight-through or a crossover cable.

Answer:

First, let’s understand about auto-MDIX:

Auto-MDIX (Automatic Medium-Dependent Interface Crossover) is a feature in network devices, such as switches and routers, that automatically detects the type of cable connected to the interface (either a straight-through or a crossover cable) and adjusts the interface to match it. This feature eliminates the need for manually determining and using the correct type of Ethernet cable.

Given Options: Step by Step Answering

a) It enables a device to automatically configure the speed of its interface.

• This refers to auto-negotiation, not auto-MDIX. This option is incorrect.

b) It enables a device to automatically configure the duplex settings of a segment.

• This is also part of auto-negotiation, not auto-MDIX. This option is incorrect.

c) It enables a switch to dynamically select the forwarding method.

• This option refers to something different from auto-MDIX, such as switching methods (store-and-forward, cut-through, etc.). This option is incorrect.

d) It enables a device to automatically configure an interface to use a straight-through or a crossover cable.

• This directly matches the functionality of auto-MDIX, which automatically configures the interface to use the correct cable type. This option is correct.

Final Answer

Based on the above analysis, the correct answer is:

d) It enables a device to automatically configure an interface to use a straight-through or a crossover cable.

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