Answer: Disaster protection, historical archiving, system migration, data sharing
2:
What is offline storage?
A2:
Answer: Storage that cannot be accessed without an administrator's making it available
3:
What does backup metadata do?
A3:
Answer: It keeps data about backup operations and tapes.
4:
What does tape rotation do?
A4:
Answer: It determines which tapes to use and when.
5:
Explain the difference between incremental and differential backups.
A5:
Answer: Incremental backups copy data that has changed since the last backup. Differential backups copy data that has changed since the last full backup.
6:
What is hot backup?
A6:
Answer: Hot backup operates while the application system is running.
7:
Name two advantages of backing up over the SAN.
A7:
Answer: Excellent performance and centralized backup management
8:
True or false: LAN-free backup requires backup data to move through the application servers being backed up.
A8:
Answer: True. An application server reads data from a disk LUNin the SAN, stores it temporarily in memory, and writes it to tape drives in the SAN.
9:
A data mover is used in what kind of SAN-based backup?
A9:
Answer: Serverless backup
10:
Why does disk capacity for backup scale and tape capacity not scale?
A10:
Answer: Disk can use RAIDand other virtualization techniques to create scalable capacity, whereas tape is limited to the capacity of a single cartridge.
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