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Question: Why we use cross cable to connect same devices?

Answer: Same devices like PC-2-PC, it uses(NIC for PC) 1,2 for transmission & 3,6 for reception. If we don't use cross cable then we can't transfer data.

While in the case of switch/hub they receive (NIC of SWITCH/HUB)data on 1,2 & transmit on 3,6.

Thats why we use straight cable for de-similar host & cross cable for similar hosts.



Category Networking Interview Questions & Answers - Exam Mode / Learning Mode
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Question: Why we use cross cable to connect same devices?
Answer:

Same devices like PC-2-PC, it uses(NIC for PC) 1,2 for transmission & 3,6 for reception. If we don't use cross cable then we can't transfer data.

While in the case of switch/hub they receive (NIC of SWITCH/HUB)data on 1,2 & transmit on 3,6.

Thats why we use straight cable for de-similar host & cross cable for similar hosts. Source: CoolInterview.com

Answered by: Alok Kr. Singh | Date: 6/30/2008 | Contact Alok Kr. Singh Contact Alok Kr. Singh

Same devices like PC-2-PC, it uses(NIC for PC) 1,2 for transmission & 3,6 for reception. If we don't use cross cable then we can't transfer data.

While in the case of switch/hub they receive (NIC of SWITCH/HUB)data on 1,2 & transmit on 3,6.

Thats why we use straight cable for de-similar host & cross cable for similar hosts.


Source: CoolInterview.com

Answered by: kishor | Date: 3/27/2009 | Contact kishor Contact kishor

cross cable is used only for similary divices connection like pc to pc 1 and 2 sending the data and 3 and 6 recives the data. Source: CoolInterview.com

Answered by: saisankar bihary | Date: 4/9/2010 | Contact saisankar bihary Contact saisankar bihary

using of cross cables to connect same devices reduces the noise effect on the cable,resulted to no loss of single ,so why we use crosss cables to connect same devices.
Source: CoolInterview.com

Answered by: waqar | Date: 5/16/2010 | Contact waqar Contact waqar

coz of cross cable is used to connect same devices and it gives us 100mbps of speed. Source: CoolInterview.com

Answered by: kundan | Date: 5/22/2010 | Contact kundan Contact kundan

Because cross cable has opposite function of wire. in utp cable has 8 wires but 4 wires only use in which first 1,2 wires has +data transmit and 3,6 wires has -DATA recieve. same device cant send data to same transmit wires pc to pc does not use same wire for +DATA and -DATA so use opposite.. Source: CoolInterview.com

Answered by: Dinesh | Date: 8/29/2010 | Contact Dinesh Contact Dinesh


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