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
Q

What happens if one drive fails in RAID 1?

A

The other contains all the data and will become the primary drive

26
Q

Does RAID 1 help access speed?

A

No

27
Q

Explain RAID 5

A

A combination of RAID 0 & 1.
Creating a redundant stripe
No mirroring employed for redundancy

28
Q

Does RAID 5 eliminate the need to do backup?

A

No

29
Q

What is the minimum drive needed for RAID 5?

A

3

30
Q

What happens if one of a RAID 5 drive fails?

A

The system will work slowly

31
Q

What happens if more than 1 drives fail in a RAID5

A

Loss of all the data in the array

32
Q

What is the best device for power redundancy?

A

UPS

33
Q

Do you still need to backup when using RAID?

A

Yes

34
Q

What does an attribute set to 0 means?

A

The file has been backed up

35
Q

What are the 5 types of backup?

A
Normal.or full
Copy
Incremental
Differential
Daily
36
Q

Which backup takes the longest but is the fastest to restore

A

Normal/full

37
Q

Which backups clear the archive bit?

A

Normal/full

Incremental

38
Q

What happens during a Normal backup

A

Backup selected files and clear the archive bit

39
Q

What happens during the copy back up?

A

Backs up selected files but does not clear the archive bit.

40
Q

What happens during Incremental backup?

A

Back up only what was modified or created since the last backup. Clears the archive bit

41
Q

Which backup is faster but slower to restore

A

Incremental

42
Q

What is differential backup

A

Back up files created or modified since the last backup but does not clear the archive bit.

43
Q

Which backup is in between normal and incremental interns of backup and restore speed

A

Differential

44
Q

What is daily backup?

A

Backup files created today. Doesn’t look at the archive bit.

45
Q

What is the most thorough backup?

A

Normal

46
Q

Can you back up files belonging to other people?

A

No. You need administrator rights.

47
Q

What is a system imagine?

A

An exact copy of an entire hard disk

48
Q

What do you use to create a snapshot in time of your system?

A

System Image

49
Q

What are the drawbacks of doing a system Image?

A

It takes a long time to make

It restores everything, so you cannot choose what you want to restore

50
Q

Can you backup files on the same hard drive on which they are located?

A

No

51
Q

What are your choices of location for backup?

A

Locally attached storage (hard drive, optical drive, USB)
Network attached storage (hard drive on a server, NAS device)
Internet or cloud based

52
Q

What does an archive bit of 1 represent?

A

File not backed up

53
Q

When nothing is on the monitor what device may be used to detect the problem?

A

POST card

54
Q

What is the beep when you turn on your computer?

A

POST

55
Q

What gives the black screen error message?

A

BIOS

56
Q

What gives the blue screen error

A

Windows

57
Q

What can be used when windows will not boot?or cannot access the OS

A

Recovery environment

58
Q

What function key can get you to safe mode

A

F8

59
Q

True or false

Safe mode can allow you to install the bear minimum

A

True

60
Q

What command allows you to change the boot option on your computer

A

Msconfig