Which two statements correctly describe the components of a router? | CCNA

     A.    RAM permanently stores the configuration file used during the boot sequence.
     B.    ROM contains diagnostics executed on hardware modules 
     C.    NVRAM stores a backup copy of the IOS used during the boot sequence.
     D.    Flash memory does not lose its contents during a reboot.
      E.    ROM contains the most current and most complete version of the IOS.

ANS: B,D