Lesson 12 Chapter 5 - Disaster Prevention and Recovery

Question 1

In terms of a backup, what does frequency mean? (2)

Answer 1

How often a backup is made
The type of backup

Question 2

In terms of backup, what does retention mean?

Answer 2

how long a backup is kept before it’s destroyed/abandoned

Question 3

What is an archive bit?

an att

Answer 3

an attribute that flags whether or not a file/folder is included in a backup

Question 4

How/when is the archive bit set to on and off? (2)

Answer 4

1. When a file changes, the archive bit is set to On
2. When you perform backups, the backup software turns the file Off

Question 5

How do you check a file’s current archive bit status? (5 steps)

Answer 5

Right click file > properties > General tab > advanced > box checked for File is ready for archiving

Question 6

What are the 4 types of backups?

F, I, D, S

Answer 6

1. Full backup
2. Incremental backup
3. Differential backup
4. Synthetic backup

Question 7

What is a full backup?

Answer 7

captures everything on a storage device and ends up the same size as the copied volume (unless compressed or encrypted)

(full backup turns off archive bit for all the files/folders backed up, simplest recovery process)

Question 8

What is an incremental backup?

Answer 8

copies only the files/folders modified since the last full or incremental backup

(as a file/folder is added to an incremental backup, its archive bit is turned off)

Question 9

What is a differential backup?

Answer 9

Only files modified/created since the last full backup are included

(a file modified/created since a full backup are archived, size of backup grows until next full backup bc doesn’t reset archive bit)

Question 10

What’s the difference between a synthetic backup and a full backup?

Answer 10

The synthetic backup is made from a combination of the normal full backup and the incremental backups

Question 11

What’s a common backup plan?

Answer 11

Use a full backup at the beginning of the month (for example), and then incremental or differential backups as frequently as needed

Question 12

What is a data retention policy?

Answer 12

defines the duration, storage, and disposal requirements for each typ e of data

Question 13

What are 2 ways that data is classified in an organization?

Answer 13

1. External data
2. Internal data

Question 14

What’s the difference between external and internal data? (2 sections)

Answer 14

External - product, service, purchasing, disposal records, etc kept for reporting
Internal - personnel, inventory, sales, etc to aid in recovery after data loss and for reference

Question 15

The backup recovery plan should be tested every….?

Answer 15

6-9 months

Question 16

A backup policy must include a….?

Answer 16

backup rotation plan

Question 17

What’s a backup rotation plan?

Answer 17

older backup media is reused after the retention period has expired

Question 18

What’s the most widely used backup rotation plan?

Answer 18

grandfather-father-son (GFS) scheme

Question 19

What is the GFS backup rotation scheme?

Answer 19

The grandfather-father-son scheme rotation is based on the age/sequence of the backup media (oldest to newest)

Question 20

What is the 3-2-1 rule backup rotation scheme?

Answer 20

It requires 3 copies of production and backed up data on 2 different media, with 1 copy of the current backup stored offline or offsite