What statement regarding the server message block protocol is accurate?
a. it is a signaling protocol used to make a connection between hosts prior to data transfer.
b. it is a protocol used for accessing network-based ldap directories.
c. it is used by windows and unix-based operating systems to share files.
d. it is a simple protocol used to synchronize block messages written to iscsi drives on a network.

Python. primary u. s. interstate highways are numbered 1-99. odd numbers (like the 5 or 95) go north/south, and evens (like the 10 or 90) go east/west. auxiliary highways are numbered 100-999, and service the primary highway indicated by the rightmost two digits. thus, the 405 services the 5, and the 290 services the 90. given a highway number, indicate whether it is a primary or auxiliary highway. if auxiliary, indicate what primary highway it serves. also indicate if the (primary) highway runs north/south or east/west.