Which of the following can help reduce the amount of traffic that is sent over the network during the second run of a replication job?

Which backup method produces a backup chain that consists of the first full backup file (VBK) and a set of incremental backup files (VIB) following it? Additionally, the backup chain contains synthetic full and/or active full backup files that divide the backup chain into shorter series.

A backup administrator has replicated a virtual machine between two Hyper-V hosts and now would like to automatically verify the recoverability of the replica. What would they need to do?

The backup administrator configured replication for a VM from Data Center 1 to Data Center 2, which runs every day at 1 a.m. A power surge takes out Data Center 1 at 7 a.m. and the administrator fails over the replica at 8 a.m. When the power comes back on, the administrator performs the "failback" action at 2 p.m.
and checks the state of the original VM. They recognize that not all data is available. What is missing?

Offloading backup files to the capacity tier of a scale out repository can be done automatically by leveraging what type of job?