When configuring failover, in what manner must you configure your Steelhead appliances?
1) Master/Backup
2) Primary/Secondary/Tertiary
3) Master/Master
4) Backup/Backup
5) Primary/Principle

A.
1

B.
2

C.
3, 4

D.
1, 3, 4

E.
1, 2, 3, 4, 5