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Chapter 11 Flashcards

Business Continuity and Computer Support

1
Q

What is Business Continuity?

A

Trying to prevent problems and preparing for when there is a hardware failure or software loss

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2
Q

What are the 2 major categories of business Continuity?

A

Fault tolerance

Disaster recovery

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3
Q

What are the areas that fall underl fault tolerance?

A

Replication
Redundancy
Backups
Contingency planning

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4
Q

When looking at disaster recory what is being considered?

A

Restoring data

Access based on predefined priorities

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5
Q

What is fault tolerance?

A

The ability to lose a component or data and still have a functional system

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6
Q

What is tolerance?

A

How much risk you are willing to take

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7
Q

What is a contingency plan?

A

A plan of action in the event of a problem

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8
Q

List the steps to take to create a contingency plan

A 
1 perform a business impact analysis
2 identify preventive systems
3 develop a recovery plan
4 test the recovery plan
5 set up a maintain and review schedule
6 implement training
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9
Q

What is replication?

A

A full working copy of whatever data, computer or network that’s being considered

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10
Q

What are hot sites

A

Entire replicated networks

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11
Q

What is the down side of replication?

A

It is the most expensive of the fault tolerant options

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12
Q

What is redundancy?

A

Where there are devices in place to help keep things running normally for a short period of time until the original problem can be fixed

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13
Q

What can redundancy be implemented on?

A

Data
Networks
Power sources

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14
Q

How can you add additional hard drives to a computer and get benefits beyond increased storage like your disk read/write faster and create fault tolerance by having extra protection against disk failure

A

Implement RAID

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15
Q

What does RAID stand for?

A

Redundant Array of Independent disks

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16
Q

Explain RAID

A

Multiple physical hard disks working together as a team for increased performance, reliability or both

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17
Q

How many different implementation of RAID can there be?

A

10

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18
Q

What are the 3 more popular versions of RAID?

A

RAID 0
RAID 1
RAID 5

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19
Q

What is the other name for RAID 0?

A

Disk stripping

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20
Q

What happens in RAID 0?

A

At least 2 drives are combined to create one logical volume

Data written across the volume like a stripe

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21
Q

In RAID 0 if one of the drives fail what happens?

A

All contents are lost

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22
Q

Which of the RAID is not RAID in every sense of the word?

A

RAID 0

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23
Q

What is the other name for RAID 1?

A

Disk mirroring

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24
Q

How does RAID1 produce fault tolerance?

A

By writing the same data simultaneously to two separate drives

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25
What happens if one drive fails in RAID 1?
The other contains all the data and will become the primary drive
26
Does RAID 1 help access speed?
No
27
Explain RAID 5
A combination of RAID 0 & 1. Creating a redundant stripe No mirroring employed for redundancy
28
Does RAID 5 eliminate the need to do backup?
No
29
What is the minimum drive needed for RAID 5?
3
30
What happens if one of a RAID 5 drive fails?
The system will work slowly
31
What happens if more than 1 drives fail in a RAID5
Loss of all the data in the array
32
What is the best device for power redundancy?
UPS
33
Do you still need to backup when using RAID?
Yes
34
What does an attribute set to 0 means?
The file has been backed up
35
What are the 5 types of backup?
``` Normal.or full Copy Incremental Differential Daily ```
36
Which backup takes the longest but is the fastest to restore
Normal/full
37
Which backups clear the archive bit?
Normal/full | Incremental
38
What happens during a Normal backup
Backup selected files and clear the archive bit
39
What happens during the copy back up?
Backs up selected files but does not clear the archive bit.
40
What happens during Incremental backup?
Back up only what was modified or created since the last backup. Clears the archive bit
41
Which backup is faster but slower to restore
Incremental
42
What is differential backup
Back up files created or modified since the last backup but does not clear the archive bit.
43
Which backup is in between normal and incremental interns of backup and restore speed
Differential
44
What is daily backup?
Backup files created today. Doesn't look at the archive bit.
45
What is the most thorough backup?
Normal
46
Can you back up files belonging to other people?
No. You need administrator rights.
47
What is a system imagine?
An exact copy of an entire hard disk
48
What do you use to create a snapshot in time of your system?
System Image
49
What are the drawbacks of doing a system Image?
It takes a long time to make | It restores everything, so you cannot choose what you want to restore
50
Can you backup files on the same hard drive on which they are located?
No
51
What are your choices of location for backup?
Locally attached storage (hard drive, optical drive, USB) Network attached storage (hard drive on a server, NAS device) Internet or cloud based
52
What does an archive bit of 1 represent?
File not backed up
53
When nothing is on the monitor what device may be used to detect the problem?
POST card
54
What is the beep when you turn on your computer?
POST
55
What gives the black screen error message?
BIOS
56
What gives the blue screen error
Windows
57
What can be used when windows will not boot?or cannot access the OS
Recovery environment
58
What function key can get you to safe mode
F8
59
True or false | Safe mode can allow you to install the bear minimum
True
60
What command allows you to change the boot option on your computer
Msconfig

IT Fundamentals (9 decks)

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