Exam 200-301 topic 1 question 1224 discussion

Guys, it's a crossover cable. It literally says: "Pins 1 and 2 are receivers and pins 3 and 6 are transmitters"

Router to Switch usually requires a straight-through cable connection, however, when Auto detection MDI-X is unavailable, this changes things. Now you would need a crossover cable to allow the different devices to function properly. Older equipment with an older answer, hence why we want to think it's a straight through cable when in fact it is not.

Different devices don't requires cross over cables

A switch, on the other hand, is considered an intermediary device, and its Ethernet ports are typically configured as MDI-X (Media Dependent Interface Crossover), which has the transmit and receive pins crossed internally. Therefore, when connecting a switch to a router or a PC without Auto-MDIX, a straight-through cable is used. To summarize: PC to Router (without Auto-MDIX): Crossover cable PC to Switch (without Auto-MDIX): Straight-through cable Router to Switch (without Auto-MDIX): Straight-through cable When connecting network devices of the same type without Auto-MDIX, you typically use a crossover cable. Here’s what you would use for each scenario: Switch to Switch: Crossover cable Router to Router: Crossover cable PC to PC: Crossover cable

this is a straight cable output: The straight through RJ45 cable is commonly used to connect network cards with hubs on 10Base-T and 100Base-Tx networks. On network cards, pair 1-2 is the transmitter, and pair 3-6 is the receiver. The other two pairs are not used. On hubs, switches and routers, pair 1-2 is the receiver and 3-6 the transmitter. Because of this a straight through RJ45 cable can be used to connect network cards to hubs.

The answer is correct, it's crossover.

Straight-through Cables. These two types of ethernet cable are commonly used in most computer networking transmissions. A straight-through cable is used in local area networks to connect different devices like a computer to a network hub such as a router, router and switch, PC and switch, and so on.

Option D You are describing a scenario where a straight-through Ethernet cable (also known as a "patch cable") should be used. In a straight-through cable, each wire on one end of the cable is connected to the same pin on the other end. This type of cable is commonly used to connect different types of devices, such as a router to a switch, where the transmit pins on one end are connected to the receive pins on the other end. Ensure that both the router and the switch are configured for the same Ethernet standard (e.g., both support Gigabit Ethernet) and use a straight-through cable to connect them. If auto MDI-X is unavailable, it means you should not use a crossover cable, as a straight-through cable is required for proper communication between the router and switch in this case.