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Network cables

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Some connection links between various devices in a network are given:

PC ----[cable 1]-----Router

Router----- [cable 2]------Router

Router-----[cable 3]------Switch

cable 1, cable 2 and cable 3 respectively are:

a. Cross over cable, Straight thorugh cable,Cross over cable

b. Cross over cable, Cross over cable, Straight thorugh cable

c. Straight thorugh cable, Cross over cable,Straight thorugh cable

d. Straight thorugh cable, Straight thorugh cable, Cross over cable,

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2 Answers

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Answer is B

Importnat types of network cables are as follows:

  • Patch cable (Straight through cable) connects different layers of devices.  (e.g.: switch to router) STP, UTP, coaxial cable or fiber cable can act as a patch cable.
  • Cross over cable connects same layer of devices (e.g.: two switches, computer + router). It is just like Straight-Through cables but TX and RX lines are crossed. 
  • Roll over cable (console cable) connects PC to COM port of network devices to make programming changes. It has opposite Pin assignments on each end of the cable.
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