Which setting would restrict deduplication backups within Symantec NetBackup 7.5?

Where is network resiliency configured in Symantec NetBackup 7.5?

A Symantec NetBackup 7.5 administrator needs to use client-side deduplication to reduce network
traffic.
What is the minimum version level requirement for clients that deduplicate their own data?

An organization plans to upgrade its master server to Symantec NetBackup 7.5. A Symantec
NetBackup media server is being used to perform a backup of the catalog.
Which Symantec NetBackup version or versions are supported on the media server performing
the catalog backup?

Which two tasks does the catalog backup perform? (Select two.)

When the image database needs to be moved, after determining that all jobs have completed,
which two services (daemons) should be stopped? (Select two.)

In which order should an administrator install a new Symantec NetBackup 7.5 patch?

What is an advantage of using Endpoint Discover over Network Discover?

An administrator needs to install a Symantec NetBackup patch to a 32-bit Windows 2003 server.
Which machine should the administrator use to deploy the patch remotely?

Refer to the exhibit.

An administrator needs to create two additional copies of a backup image stored on a tape but the
Setup Duplication Variables window will only allow one additional copy to be configured.
What is a likely cause?