100-150 Question 159
Single answerYou are provided with a network diagram by a network engineer. The diagram shows a connection between a router and a switch labeled as 'GigabitEthernet0/1' on the router and 'GigabitEthernet1/0/1' on the switch. Which type of cable should you use to connect these devices?
- A
Console cable
- B
Crossover Ethernet cable
- C
Straight-through Ethernet cable
- D
Fiber optic cable
Show answer and explanation
Correct answer: C
Explanation
A straight-through Ethernet cable is used to connect different types of devices, such as a router and a switch, as indicated in the network diagram. The ports labeled 'GigabitEthernet' on both devices suggest standard Ethernet connectivity, which is compatible with a straight-through Ethernet cable.
- A. Incorrect.
A console cable is used for management purposes to connect to the console port of a device, not for connecting a router to a switch.
- B. Incorrect.
A crossover Ethernet cable is typically used to connect two similar devices directly, such as two switches or two routers. However, modern devices often auto-negotiate connections, so crossover cables are less commonly used.
- C. Correct.
A straight-through Ethernet cable is the correct choice for connecting a router to a switch, as they are different types of devices.
- D. Incorrect.
Fiber optic cables are used for high-speed and long-distance connections, but they require the appropriate fiber ports, which are not mentioned in this scenario.