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CompTIA Security+ (SY0-601) TMM > Planning for the Worst > Flashcards

Planning for the Worst Flashcards

1
Q

Power Surge

A

An unexpected increase in the amount of voltage provided

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2
Q

Power Spike

A

A short transient in voltage that can be due to a short circuit, tripped circuit breaker, power outage, or lightning strike

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3
Q

Power Sag

A

An unexpected decrease in the amount of voltage provided

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4
Q

Brownout

A

Occurs when the voltage drops low enough that it typically causes the lights to dim and can cause a computer to shut off

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5
Q

Blackout

A

Occurs when there is a total loss of power for a prolonged period

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6
Q

RAID Versions

A 
RAID 0 = Disk striping
RAID 1 = Disk mirroring
RAID 5 = Disk striping w/parity
RAID 6 = Disk striping w/double parity
RAID 10 = Stripes two mirrored RAIDs
RAID 0+1 = Mirrors two striped RAIDs
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7
Q

Fault-Resistant RAID

A

Protects against the loss of the array’s data if a single disk fails (RAID 1 or RAID 5)

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8
Q

Fault-Tolerant RAID

A

Protects against the loss of the array’s data if a single component fails
(RAID 1, RAID 5, RAID 6)

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9
Q

Disaster-Tolerant RAID

A

Provides two independent zones with full access to the data (RAID 10)

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10
Q

Server Redundancy: Cluster

A

Two or more servers working together to perform a particular job function

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11
Q

Failover Cluster

A

A secondary server can take over the function when the primary one fails

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12
Q

Load-Balancing Cluster

A

Servers are clustered in order to share resources such as CPU, RAM, and hard disks

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13
Q

Redundant Sites

A

Hot Site:
A near duplicate of the original site of the organization that can be up and running within minutes

Warm Site:
A site that has computers, phones, and servers but they might require some configuration before users can start working

Cold Site:
A site that has tables, chairs, bathrooms, and possibly some technical items like phones and network cabling

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14
Q

10 Tape Rotation

A

Each tape is used once per day for two weeks and then the entire set is reused

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15
Q

Grandfather-Father-Son

A

Three sets of backup tapes are defined as the son (daily), the father (weekly), and the grandfather (monthly)

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16
Q

Towers of Hanoi

A

Three sets of backup tapes (like the grandfather-father-son) that are rotated in a more complex system

17
Q

Disaster Recovery Plan Attributes

A 
Contact Information
Impact Determination
Recovery Plan
Business Continuity Plan (BCP)
Copies of Agreements
Disaster Recovery Exercises
List of Critical Systems and Data
18
Q

Business Impact Analysis (BIA)

A

A systematic activity that identifies organizational risks and determines their effect on ongoing, mission critical operations

Business impact analysis is governed by metrics that express system availability

19
Q

Maximum Tolerable Downtime (MTD)

A

The longest period of time a business can be inoperable without causing irrevocable business failure

Each business process can have its own MTD, such as a range of minutes to hours for critical functions, 24 hours for urgent functions, or up to 7 days for normal functions

MTD sets the upper limit on the recovery time that system and asset owners need to resume operations

20
Q

RTO

A

Recovery Time Objective:
The duration of time and a service level within which a business process must be restored after a disaster in order to avoid unacceptable consequences associated with a break in continuity.

21
Q

WRT

A

Work Recovery Time:
The length of time in addition to the RTO of individual systems to perform reintegration and testing of a restored or upgraded system following an event

22
Q

RPO

A

Recovery Point Objective:
The longest period of time that an organization can tolerate lost data being unrecoverable

Recovery Point Objective (RPO) is focused on how long can you be without your data

23
Q

MTTR

A

Mean Time to Repair:

Measures the average time it takes to repair a network device when it breaks

24
Q

MTBF

A

Mean Time Between Failures:

Measures the average time between failures of a device

25
Q

Pulverizing & Shredding

A

Heavy machinery; complete destruction

26
Q

Load Balancing: Scheduling

A

Round-robin
Each server is selected in turn

Weighted round-robin
Prioritize one server over another

Dynamic round-robin
Monitor server load & distribute to the server with lowest use

Active/active
All servers operating, if one fails, operation continues normally

CompTIA Security+ (SY0-601) TMM (35 decks)

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