NBTE CCNA1 Module 8 Network Layer

[@ComputerSchpp]

During the encapsulation process in the network layer, you only mentioned what happens to the DATA and HEADER segments of the packets without mention to its TRAILER that is also part of it as discussed under module 7. This is where I am confused, if i heard you well. thanks

[@ComputerSchpp]

how do you integrate different routing protocols with your router, do they come automatically with the rout device as you purchase them

[@ComputerSchpp]

This subnet mask, 255.255.255.0; is it same for all devices, and why is it so