1.1.13 range of methods that can be used to prevent data loss

Question 1

how do you deal with hard drive or system crashes where data stored can be lost forever or inaccessible?

Answer 1

regular backup of files using hard disks, firewall installation, data storage in more than one location, removed hard copies (printed versions of data), installation of an antivirus, human error reduction techniques, online autosave backup (iCloud, dropbox)

Question 2

what is a hot site?

Answer 2

business is recreated in another location. used for emergencies like for when building gets flamed

Question 3

what is cold site?

Answer 3

no data there, computers but no data

Question 4

what is redundancy?

Answer 4

duplication of storage devices and stored data of a computer system with the intention of securing the stored data. (backing up data in only one computer). (also called failsafe method)

Question 5

what is removable media?

Answer 5

diskettes, blu-ray discs, CDs, DVDs. USB.

Question 6

what is removable media used for?

Answer 6

they can store data permanently and are non volatile

Question 7

what is a failover system?

Answer 7

its a computer which is on standby capable of switching to a spare computer system upon hardware, network failure or any other type of error like software malfunction

Question 8

what is failover system 2?

Answer 8

the degree of human intervention. failover is automatic and handles abnormal situations without human interference. in a failover system when primary server fails the stand server is made primary

Question 9

what is a switchover system?

Answer 9

the primary and secondary system interchange the primary role.