Can you answer this questions? 

    1.Please list the most top 10 pieces of command on cisco router for your common usage and give a brief.

  2.Please show key words on how to restore a main DC from a standby DC.

  3.Please give an idea about MX cluster main patterns and to show key words on how to complement.

  4.Please give key words to decribe the commont knowedge and usage about DNS,DHCP,DFS.

   5.DO you have RAID System construct exprience?Please give key words to describe the differented between RAID0,RAID1,RAID5,RAID6,RAID10.