41. This fact is important for the High Redundancy Actuator, as fault tolerance is required for different fault types. 42. Infinit works by aggregating storage capacity from a collection of servers, creating a redundancy and fault tolerance ). 43. To provide fault tolerance , there should be at least 2 domain controllers available within each domain of the Forest. 44. Parallel backbones are more expensive than other backbone networks because they require more cabling than the other fault tolerance . 45. Fault tolerance is not just a property of individual machines; it may also characterise the rules by which they interact.46. They are also getting better at fault tolerance so they will continue to work without interruption as cells go bad. 47. She leads the Programming Methodology Group at MIT, with a current research focus in Byzantine fault tolerance and distributed computing. 48. Centralized management techniques for these resources are limited in their scalability both in terms of execution efficiency and fault tolerance . 49. The domain to mail exchanger mapping provided by MX records may present an additional layer of fault tolerance and load distribution. 50. RAID subsystems are multiple drives that appear to be one drive or more drives to the user, but provide fault tolerance .