4.1 RTO & RPO (Doshi) Flashcards

1
Q

Recovery Point Objective (RPO)

A

A recovery point objective (RPO) is the period for which recent data will be irretrievably lost in a disaster.

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2
Q

Extend of acceptable data loss:

A

It’s called Recovery Point Objective or RPO.

RPO POINT is most concerned by data loss

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3
Q

RPO measures:

A

RPO is usually measured in hours or days.

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4
Q

Recovery Time Objective:

A

Recovery time objective (RTO) is the period from the onset of an outage until the resumption of service.

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5
Q

Extend of acceptable system downtime?

A

It’s called Recovery Time Objective or RTO

RTO Time is for system downtime.

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6
Q

RTO measures:

A

RTO is usually measured in hours or days.

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7
Q

What does a RTO of 2 hours indicate?

A

that organization needs to ensure that their system downtime should not exceed 2 hours.

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8
Q

What does a RPO of 2 hours indicate?

A

that organization needs to ensure that their data loss should not exceed 2 hours of data captured.

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9
Q

What should a RTO for a critical system be?

A

Zero or near Zero

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10
Q

What should a RPO for a critical data be?

A

Zero or near Zero

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11
Q

The lower RTO or RPO:

A

The higher the cost of maintenance environment

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12
Q

What does a low RTO or RPO indicate?

A

That disaster tolerance is low. Therefore, if disaster tolerance is low, RTO/RPO should be low.

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13
Q

What is recommended when RTO is low?

A

A mirrored site or hot site

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14
Q

What is recommended when RPO is low?

A

Mirror imaging or real time replication for data back-up is recommended

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15
Q

What is recommended when RPO is zero?

A

Synchronous data backup strategy to be used

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16
Q

The lower the time requirements for RTO & RPO:

A

The higher, the cost of recovery strategies.

17
Q

RTO of 2 hours indicates that organization needs to ensure that their system downtime

A

should not exceed 2 hours.

18
Q

RPO of 2 hours indicates that organization needs to ensure that their data loss should

A

not exceed 2 hours of data captured.

19
Q

In any given scenario, for critical systems, RTO is

A

zero or near zero. Similarly, for critical data, RPO is zero or near zero.

20
Q

In any given scenario, lower the RTO/RPO,

A

higher the cost of maintenance of environment.

21
Q

In any given scenario, low RTO/RPO indicates that

A

disaster tolerance is low. Other way round, if disaster tolerance is low, RTO/RPO should be low.

22
Q

In any given scenario, when RTO is low,

A

mirrored site or hot site is recommended.

23
Q

In any given scenario, when RPO is low,

A

mirror imaging or real time replication for data back-up is recommended.

24
Q

In any given scenario, where RPO is zero,

A

synchronous data backup strategy to be used.

25
Q

Both RTO & RPO are based on

A

time parameters. The lower the time requirements, the higher the cost of recovery strategies.