Cloud backup software periodically saves your files and settings to an external hard drive. quizlet

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Terms in this set [91]

backup

duplicate copy of a file that you use if the original file is lost, damaged, or destroyed

restore it

To use a backup copy of a file, you first need to ___.

restore it

copy the file to its original location on your computer.

back up files: two major decisions

type of backup to create and which backup method to use

four most common types of backups for individual computer

system backups, differential backups, incremental backups, and selective backups

full system backup

system image or a disk mirror

full system backup

exact duplication of: hard drive, including data files, system files and settings, application files, and the operating system

when hard drive is
destroyed

remove it, install a new hard drive, and then restore your files from the full system backup to have the same setup on the new hard drive as you had
when you created the backup.

differential backup

copies of the files that have changed since the last full system backup

incremental backup

copies of the files that have changed since the last full
system backup or the last incremental backup.

selective backup [also called a partial backup]

select the folders and files you want to back up.You can perform incremental backups to keep this

Advantages and disadvantages of backup types
BACKUP

...

Full system

ADVANTAGES: complete backup you can
use to restore a computer

Full system

DISADVANTAGES:
-long time to back up a
complete system.
-Each backup requires a lot of
storage space

Differential

ADVANTAGES:
-restore a computer with a full system backup and the latest differential backup.
-Requires less storage space than multiple full system backups

Differential

DISADVANTAGES: longer and more storage space than an incremental backup.

Incremental

ADVANTAGES:less time and storage than a differential
backup

Incremental

DISADVANTAGES:multiple steps to restore a
computer; you first must restore the
full system backup and then restore
each incremental backup in order

Selective

ADVANTAGES:
-back up and restore files and
folders quickly
-Backs up only data files, not software,
which you can reinstall

Selective

DISADVANTAGES:you might not be able to
restore a full system

must restore the incremental
backups in the same order they were created,

true

To make it easier to restore a computer

create
full system backups periodically

Selecting a Backup Method

use software installed on your computer, or you can use
an online backup service provider. Most experienced computer users employ a combination
of these methods

backup software

creating and updating backups and for restoring files from a backup

backup software

compresses all the files selected for a backup into a single large file. stores an index of file details, including their
original locations, to restore the files when necessary.

provide backup software.

Operating systems, third-party software developers, and manufacturers of backup
media such as external hard drives

Windows 8 provides the following backup and restore software:

...

File History

Makes incremental backups of files that have changed in specified
folders. Instead of writing over versions of the same file, File History keeps
copies of each saved version of a file but does not create full system backups

System Image Backup

Creates a full system backup

Recovery

Restores files from a system image backup

Popular third-party backup software

...

OPERATING SYSTEM: Windows

...

BACKUP SOFTWARE

-Acronis True Image: Creates all types of backups
-Backup Maker Freeware; designed for the average home user.
-Cobian Backup Freeware; designed for experienced computer users.
-Genie Backup Manager :Creates all types of backups

OPERATING SYSTEM:Mac OS X

-Carbon Copy :Cloner Similar to Time Machine, but lets you start the computer
from a backup
-SuperDuper :Free version does not create incremental backups

OPERATING SYSTEM:iOS

...

CopyTrans Shareware

backs up to a PC

OPERATING SYSTEM: Android

-Carbon Free version [backs up to an SD card or a PC]
-Super Backup [Backs up all of your data, including contacts and call logs]

After installing backup software

set a schedule and select a location for
the backups. To set a schedule, you might need to first turn on automatic backups.

default schedule

designed for average computer usage, so
you should change it if you create or modify files on your computer more or less
frequently

External hard drive

-portability, capacity, and ease of use.
-it is where most experienced computer users create backups.
-Small ones have a few hundred gigabytes of storage capacity,
making them suitable for selective backups,
-larger ones with at least 1 TB of storage space are ideal for maintaining full system backups

USB flash drive

-If you are creating a selective backup of a limited amount of data.
-inexpensive and convenient for
backing up documents and other personal files.
- a single one of this does not have enough capacity to store a full system backup and its updates.

Optical disc

-use recordable CDs, DVDs, and Blu-ray discs as backup
media.

disadvantage of optical discs

slow to save and access data, so backing up and restoring large files from this takes longer than using an external hard drive

advantage of optical discs

does not allow the data to be changed

Network folder

need to have permission to save files in the folder and set sharing options so that unauthorized users cannot access the backup

Network folder: network administrator

needs to provide enough storage space for the backups,
which might not be practical for large full system backups.

local backup

-store the medium close to the computer,
-Creating and storing a backup on a network folder,
-if you are using a local area network,

Backup type

whether to perform a full system, differential, or
incremental backup.

Encryption

security method that encodes data so that only
authorized people can access it

Encryption

can encrypt the files in a
backup, and then decrypt, or reverse the encryption when it restores the files.

Media spanning

-backup file grows very large, this feature allows you
to use more than one drive to store the backup file.
-keeps track of the files stored on each drive and requests the correct drive when you
restore selected folders and files.

Verification

-backup software compares every file in
the backup location to the corresponding file on your hard drive to make sure it
did not skip a file.
- you should restore a file or two after creating a
full system backup to make sure the restore process works correctly.

File History

lets you choose to replace the current file with the backup or to skip the replacement.

If you want to save both the older version and the current file

move the current version to a different folder or rename it before restoring the
older version.

popular alternative to installing and using backup software

subscribing to an
online backup service, which automatically creates backups on a secure server

online backup or a remote backup

When you create a backup on a server

online backup service

pay a fee to the service provider.
This subscription fee varies depending on how often you want the service
to create backups, how long you want to retain them, and how much storage space
you want to reserve

Most online backup service providers

validate the backups periodically, which
means they check the backup files to make sure you can recover the data they
contain.

Popular online backup service providers

...

1. Backblaze

Backs up files on external drives as well as those on a
hard drive

2. Carbonite

In incremental backups, updates only modified parts of
files to save time

3. CrashPlan

Lets you create local and online backups

4. Mozy

Backs up open files as well as closed ones

5. SpiderOak

Provides cloud storage and synchronizing as well as
backup services

Should you use backup software to create local backups or use online backup
services to create online backups?

computer users often
use both methods because each has advantages and disadvantages

local backup,

need backup software and removable media with enough capacity to
hold your backup files. As long as you store the media in a secure place, you always
have access to the files.

Online backups

stored on a secure server, so you don't
need to purchase removable media, but you do pay a fee to use the online backup
service. You must also depend on the backup service to stay in business and protect
against hackers so you can access your files

synchronize

can use software and online services to ____ to synchronize your files stored in the cloud with the version of those
files stored on your computer's hard drive by comparing files on the two drives,
and then updating files as necessary so the drives contain the same versions of the
files.

synchronize

not the same as backing up files, and is not recommended
as an alternative to creating backups

cloud storage
service provider

synchronizes the files so that you have the most recent versions
on your home computer.

backup plan

follows a regular schedule for creating different types of backups

redundancy

create more than one copy of a backup, so that at least one backup
survives a destructive event

3 backups

two full system backups, one labeled Backup A and
the other labeled Backup B.Each week, create an incremental or differential
backup, the first week using Backup A and the next week using Backup B.
-Third backup to create is a selective backup of important files you modify,

2 types of media

In case a drive or port fails, create the full system backups on an external hard drive and DVDs or a cloud folder.

1 off-site backup

- Store one of the full system backups off-site and store the other in a safe place in your home or office.
- you always store the most recent full system backup off-site.

Protecting Against Environmental Damage

...

Temperature

temperature range of 68 to
75 degrees [F]. If the temperature in a room exceeds 85 degrees, internal computer
components can overheat, which can make a computer unstable

Humidity

can damage internal computer components. If water
vapor penetrates a system unit, it can collect and eventually cause a short circuit,
which could destroy electronic components.

Humidity

Extreme dryness can also cause
problems, especially those related to static electricity. A static charge to an open
system unit can zap an entire motherboard.

Humidity

keep between 30 and 50 percent.

Water and other liquids

can cause a short circuit

Physical damage

most likely component to be affected by physical jarring is the
hard drive, and recovering a hard drive is time consuming even if you have a full
system backup

Power fluctuations

To protect against , plug a computer into
a surge protector [also called a surge suppressor

surge suppressor

traps short, fast bursts of
power before it can harm a computer

uninterruptible
power supply [UPS],

-protect against loss of power to a desktop
computer or a recharging mobile computer,
-contains a battery that provides power if the normal
current is interrupted.

Protecting Against Theft

...

Installing tracking software

trigger the tracking software remotely so it sends its location and
identifying information to another specified computer.

Alarm

plays an urgent sound to help you locate a
device or to alert others that an unauthorized person has your device.

Data removal

Besides locking the device, this feature lets you erase your data
remotely. This option is the most useful if you have backed up your data first

Unauthorized user notification

-lets you set the camera to take a photo of anyone who enters an incorrect
password three times.
-send you an e-mail
message displaying the photo and location of the unauthorized user.

Battery control

using GPS to find a lost mobile device, you can use the
battery control feature to turn off GPS to conserve battery power

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