Switch Interfaces

1.what is half duplex and full duplex?

2.what is collsion?

3.when sending traffic to the end devices why always happen collsion in hub?

3.1)what are the result of the collsions?

4.what is CSMA & CD?

5.how switch avoid collision using CSMA and CD?

6.what is speed/duplex auto negotiation?

7.what happen if  auto negotiation is disabled on the device connected to the switch? 

*Speed - the switch will try to sense the speed that the other device is operating at if it falls to sense the speed it will use slowest supported speed

*duplex - if the speed is 10 or 100mbps the switch will use half duplex

if the speed is 1000mbps ot grater use full duplex

8.what are the reason for the collsions?

    *duplex mismatch

9.what is the crc?

10.what are the switch interface errrors?

*runts - frame that are smaller than the minimum size(64bytes)

*Gants-Frame that are larger tha the maximum size(1518 bytes)

*CRC - frames that are failed to check(in the ethernet FCS tailer)

*Frame - frames that have an incorrect format

*output errors - frames that switch try to send but failed due to an errro

10.why CSMA/CD only used for avoid half duplex?

11.SW1 is trying to autonegotiation interface speed setting with SW2. however autonegotiation is disabled on SW2's interface SW2's interface is configures with a speed of 100mbps and full duplex.what speed and duplex setting will SW1 use assuming it succeeds in sensing th speed? 

speed 100mbps duplex half