220-801 · Question #314
A network cable used to connect two computers directly together without an additional network device is commonly referred to as which of the following?
The correct answer is B. Crossover. A crossover cable reverses the transmit and receive wire pairs so that two like devices (PC to PC) can communicate directly without a switch or hub.
Question
A network cable used to connect two computers directly together without an additional network device is commonly referred to as which of the following?
Options
- AStraight-through
- BCrossover
- CPlenum
- DRG-59
How the community answered
(47 responses)- A2% (1)
- B89% (42)
- C6% (3)
- D2% (1)
Why each option
A crossover cable reverses the transmit and receive wire pairs so that two like devices (PC to PC) can communicate directly without a switch or hub.
A straight-through cable keeps all wire pairs in the same pin order on both ends and is used to connect unlike devices such as a PC to a switch or router.
A crossover cable swaps the TX (transmit) pairs on one end with the RX (receive) pairs on the other, allowing two NICs to communicate directly because each side receives the signal the other transmits.
Plenum refers to the fire-resistant, low-smoke jacket material used when running cable through air-handling spaces, not the wiring configuration inside the cable.
RG-59 is a coaxial cable type used for analog video or cable TV signals, not for Ethernet PC-to-PC connections.
Concept tested: Ethernet crossover cable for direct PC-to-PC connection
Source: https://www.cisco.com/c/en/us/support/docs/lan-switching/ethernet/12006-18.html
Topics
Community Discussion
No community discussion yet for this question.