What are two functions that are provided by the network layer? $($Choose two.$)$a$)$tdirecting data packets to destination hosts on other networksb$)$tplacing data on the network mediumc$)$tcarrying data between processes that are running on source and destination hostsd$)$tproviding dedicated end$-$to$-$end connectionse$)$tproviding end devices with a unique network identifier