Flashcards
BACKUPS
Flashcards do conjunto (15)
- 11. What are the four components of a disaster recovery plan?1 - Emergency Plan
2- Back Up Plan
3 - Recovery Plan
4 - Test Plan - 22. What three things are backups used for?-Disaster Recovery
-Archival
-Compliance - 3What is RPO?Recovery Point Objective (RPO):
a. A point in time to which application data must be recovered in order to resume business transactions. - 4What is RTO?Recovery Time Objective (RTO):
b. Maximum allowable time to bring the application back online. - 54. What are Backup Catalogs ?c. A metadata database maintained by the backup server.
- 6What are Backup Metadata?a. Information about the backup data: File names, time of backup, size, permissions, ownership, tracking information
- 7What are Incremental backups?Full backup made regularly but further apart than a full backup strategy.
Frequent - files that have changed since the last FULL OR INCREMENTAL backup.
-Takes less time to backup than full or differential but uses less storage space
-Slower restore - 8What are Differential Backups?-Full backup made regularly but further apart than a full backup strategy.
-Frequent - only files that have changed since the last FULL backup
-More files to be backed up, therefore it takes more time to backup and uses more storage space than incremental but less than frequent full backups. - 9What is a Synthetic backup?A synthesized full backup.
-Created from the most recent full backup and subsequent incremental and/or differential backups. - 10What is a Snapshot?"Point in Time" images of live systems
-Usually a base image + differences
-Usually takes place on a schedule (say every 10 mins)
-NetApp .snapshot - 11What are CDP and Replication?CDP - Continuous Data Protection
- Backup system continuously and track changes in data
Replication - keep a second, synchronized copy of data on a separate system. - 12What is HSM?Hierarchical Storage Management
Use different types of storage media, (RAID, disk, tape) each representing a different level of cost and speed of retrieval when access is needed. - 13What is deduplication and what are its benefits?Reduces size of stored data
File level or Block Level
Finds Repetitive Data and deletes them
Uses pointer instead of copies. - 14What is the difference between a SAN and a LAN backup architecture?SAN - Data is moved via a separate backup network or fiber channel SAN directly from disk to Tape.
- Only main servers are connected to these fast and expensive networks.
LAN
Enterprise-wide network clients automatically move backup data via a network, to a tape drive connected to a backup server, automated tape libraries w/ multiple tape drives allow multiple backup streams to be received from multiple clients in parallel - 15What are the two types of cloud backup?Cloud Backup - Client agents watch specific files for changes and auto backs them up.
Cloud Synchronized - A folder or drive that looks local but on the remote system.
Informações
- Descrição
- server management second set of review questions.
- Criado por
- michael.0lsn
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